United States · Multi-region weather view
Paso Robles & Santa Barbara County
Sign in to followCentral Coast vineyards from Paso Robles through Santa Barbara County.
Hot inland districts sit close to cool, ocean-facing valleys, so fog and night cooling vary sharply.
Climate comparisons use the 1991–2020 combined regional record · updated through Aug 20, 2026.
Current conditions
Observations through Aug 31, 2026 · 00:30 UTC
Temperature24.5°C
Dew Point10.5°C
Relative Humidity42%
24h Rainfall0.0 mmmodeled IFS total through Aug 29
NWS station average · 2 stations
Temperature, dew point, humidity, and wind are averaged using the same locations and weights as the historical record. The current temperature uses 100% of the configured regional weight.
- KIZA — Santa Ynez, Santa Ynez Airport · 50% regional weight
- KPRB — Paso Robles Municipal Airport · 50% regional weight
NOAA National Weather Service observations. Station readings are point measurements and may not represent every vineyard elevation or exposure.
Vintage explorer
Mean temperature18.4°C
Temperature anomaly+0.7°Cvs 1991-2020
Growing degree days1952base 10°C
Hot days5≥ 35°C
What stood out in 2020
No single weather pattern stands out in the regional record.
Close to the usual range · Low confidence
Temperature, rainfall, heat, and frost all stayed within the site's published thresholds.
No single weather pattern stands out in the regional record.
How unusual was 2020?
The ranking compares vintages that meet the data-coverage threshold and use the same source, regional rules, and 1991-2020 baseline.
Growing-season temperature
7th warmest of 35 vintages Warmer than 28 of 34 other vintages 18.4°CGrowing-season rainfall
8th wettest of 35 vintages Wetter than 27 of 34 other vintages 144.4 mmHeat accumulation
6th highest of 35 vintages Higher than 29 of 34 other vintages 1952 GDDHot days
3rd most of 35 vintages More than 32 of 34 other vintages 5 days2020 month by month
Compared with 1991–2020
Follow heat accumulation, rainfall, frost exposure, and the region’s growing and harvest windows in calendar order.
Frost watch
Growing season
Harvest window
-
1–31 Frost watchGrowing seasonHeat accumulation
2020 23 GDDTypical 94 GDDRainfall
2020 113.7 mmTypical 77.6 mm- 2020 freezing days
- 0
- Typical
- 0.0
Heat accumulation ran behind the typical month.
-
1–30 Frost watchGrowing seasonHeat accumulation
2020 138 GDDTypical 124 GDDRainfall
2020 63.9 mmTypical 25.9 mm- 2020 freezing days
- 0
- Typical
- 0.0
Wetter than the typical month.
-
1–31 Frost watchGrowing seasonHeat accumulation
2020 228 GDDTypical 188 GDDRainfall
2020 3.0 mmTypical 10.6 mm- 2020 freezing days
- 0
- Typical
- 0.0
Heat accumulation ran ahead of the typical month.
-
1–30 Growing seasonHeat accumulation
2020 268 GDDTypical 248 GDDRainfall
2020 0.6 mmTypical 2.2 mmClose to the typical monthly pattern.
-
1–31 Growing seasonHeat accumulation
2020 299 GDDTypical 319 GDDRainfall
2020 0.1 mmTypical 0.8 mmClose to the typical monthly pattern.
-
1–31 Growing seasonHarvest windowHeat accumulation
2020 369 GDDTypical 327 GDDRainfall
2020 0.8 mmTypical 0.3 mmClose to the typical monthly pattern.
-
1–30 Growing seasonHarvest windowHeat accumulation
2020 324 GDDTypical 291 GDDRainfall
2020 0.1 mmTypical 1.8 mmClose to the typical monthly pattern.
-
1–31 Growing seasonHarvest windowHeat accumulation
2020 302 GDDTypical 226 GDDRainfall
2020 0.2 mmTypical 18.4 mmHeat accumulation ran ahead of the typical month.
View milestone calendar data as a table
| Month | 2020 GDD | Typical GDD | 2020 rainfall | Typical rainfall | 2020 freezing days | Typical freezing days |
|---|---|---|---|---|---|---|
| March 2020 | 23 GDD | 94 GDD | 113.7 mm | 77.6 mm | 0 | 0.0 |
| April 2020 | 138 GDD | 124 GDD | 63.9 mm | 25.9 mm | 0 | 0.0 |
| May 2020 | 228 GDD | 188 GDD | 3.0 mm | 10.6 mm | 0 | 0.0 |
| June 2020 | 268 GDD | 248 GDD | 0.6 mm | 2.2 mm | Outside frost window | Outside frost window |
| July 2020 | 299 GDD | 319 GDD | 0.1 mm | 0.8 mm | Outside frost window | Outside frost window |
| August 2020 | 369 GDD | 327 GDD | 0.8 mm | 0.3 mm | Outside frost window | Outside frost window |
| September 2020 | 324 GDD | 291 GDD | 0.1 mm | 1.8 mm | Outside frost window | Outside frost window |
| October 2020 | 302 GDD | 226 GDD | 0.2 mm | 18.4 mm | Outside frost window | Outside frost window |
Calendar data and method
Monthly values are weighted across every configured regional sample using stored Google ARCO ERA5 daily reanalysis. “Typical” is the mean monthly total across 30 baseline seasons. GDD is counted only inside the configured growing window; freezing days are counted only inside the frost-watch window; rainfall covers every displayed calendar day.
Selected-vintage coverage is 100%. Source rows were last retrieved Aug 20, 2026.
Replay the 2020 growing season
231 daily regional observations
Move through the season to follow temperature, rainfall, accumulated heat, and recorded weather events day by day.
Mean temperature
Daily rainfall
Season GDD
Season rainfall
No detected event on this date.
Replay data and method
Daily values are weighted across every configured regional sample using stored Google ARCO ERA5 reanalysis. Coverage is 100%. Source rows were last retrieved Aug 20, 2026.
Closest weather matches
These years had the most similar growing-season and harvest weather.
Closest match
2024
Most alike in Harvest precipitation and Growing-season precipitation.
- Harvest precipitation
- more rain: 1.9 mm
- Growing-season precipitation
- less rain: 10.9 mm
Largest difference: Hot-day count — fewer hot days
View 2024 →Second closest
2017
Most alike in Harvest precipitation and Growing degree days.
- Harvest precipitation
- more rain: 7.8 mm
- Growing degree days
- higher: 63 GDD
Largest difference: Growing-season precipitation — less rain
View 2017 →Third closest
2022
Most alike in Growing degree days and Growing-season mean temperature.
- Growing degree days
- higher: 10 GDD
- Growing-season mean temperature
- warmer: 0.1°C
Largest difference: Growing-season precipitation — less rain
View 2022 →
How similar years are calculated
Method analog-v1-2026-07 standardizes six weather measures across 34 complete ARCO ERA5 comparison years, then measures the distance between them. The calculation runs when the page is requested.
Measures used: Growing-season mean temperature (20%); Growing degree days (15%); Hot-day count (15%); Growing-season precipitation (20%); Harvest precipitation (20%). Measures omitted because they did not vary: Spring frost exposure.
Calculated distances: 2024 0.761; 2017 0.766; 2022 0.795.
View historical chart data as a table
| Year | Temperature anomaly | Rainfall anomaly | Hot days |
|---|---|---|---|
| 1991 | -1.2°C | +149 mm | 0 |
| 1992 | +0.8°C | -21 mm | 0 |
| 1993 | +0.2°C | +12 mm | 0 |
| 1994 | -0.4°C | -1 mm | 0 |
| 1995 | -0.4°C | +7 mm | 0 |
| 1996 | +0.2°C | -7 mm | 0 |
| 1997 | +0.8°C | -95 mm | 0 |
| 1998 | -0.7°C | +111 mm | 0 |
| 1999 | -1.2°C | +56 mm | 0 |
| 2000 | -0.1°C | +35 mm | 0 |
| 2001 | +0.0°C | -57 mm | 0 |
| 2002 | -0.8°C | -76 mm | 0 |
| 2003 | +0.2°C | +45 mm | 0 |
| 2004 | +0.1°C | +8 mm | 1 |
| 2005 | -0.6°C | +18 mm | 0 |
| 2006 | -0.2°C | +89 mm | 1 |
| 2007 | -0.4°C | -65 mm | 1 |
| 2008 | -0.1°C | -90 mm | 2 |
| 2009 | -0.0°C | -6 mm | 2 |
| 2010 | -1.0°C | +11 mm | 3 |
| 2011 | -0.9°C | +128 mm | 0 |
| 2012 | -0.2°C | +47 mm | 2 |
| 2013 | +0.3°C | -88 mm | 0 |
| 2014 | +1.2°C | -66 mm | 3 |
| 2015 | +1.4°C | -59 mm | 2 |
| 2016 | +0.6°C | -57 mm | 3 |
| 2017 | +1.1°C | -44 mm | 6 |
| 2018 | +0.4°C | +19 mm | 2 |
| 2019 | +0.2°C | -46 mm | 0 |
| 2020 | +0.7°C | +41 mm | 5 |
| 2021 | +0.1°C | -56 mm | 0 |
| 2022 | +0.8°C | -32 mm | 6 |
| 2023 | -0.4°C | +33 mm | 0 |
| 2024 | +0.1°C | +30 mm | 3 |
| 2025 | -0.2°C | -34 mm | 0 |
| 2026 | +0.8°C | -66 mm | 0 |
winter
11.7°C
+0.5°C vs baseline
130 mm rain · -139 mm
spring
14.6°C
+0.2°C vs baseline
180 mm rain · +67 mm
summer
20.2°C
+0.5°C vs baseline
1 mm rain · -2 mm
harvest
20.9°C
+2.0°C vs baseline
0 mm rain · -20 mm
Weather events
Periods that crossed one of the published regional thresholds, shown in date order.
Dry spell
- Duration
- 37 days
- Total rain
- 1.3 mm
- Daily cutoff
- 1.0 mm/day
Dry spell
- Duration
- 166 days
- Total rain
- 2.4 mm
- Daily cutoff
- 1.0 mm/day
Heat episode
- Peak temperature
- 39.4°C
- Duration
- 2 days
- Heat accumulation
- 37 GDD
Heat episode
- Peak temperature
- 37.3°C
- Duration
- 2 days
- Heat accumulation
- 32 GDD
How events are detected
Weather & Vines combined regional series; method event-timeline-v2-2026-07, rules paso-robles-catalog-v1-2026-07. Source last updated Aug 1, 2026, calculated Aug 29, 2026. Each configured point must have at least 95.0% coverage.
1991–present
Climate change
Measured regional trends are shown separately from model projections. The observed record ends at the latest complete growing season shared by every published region.
Observed record
Historical trends, 1991–2025
Growing degree days changed +48.9 GDD per decade. The 95% interval is +3.8 to +94.0 GDD per decade, based on 35 eligible vintages.
Weighted median: 70% SSP2-4.5 · 15% SSP1-2.6 · 15% SSP3-7.0
Shaded central 80% model range using the same weights.
How it is measured: Across the March 15–October 31 growing season, each day's mean temperature above 10°C adds to the total; cooler days add zero.
Scroll horizontally to inspect the full timeline.
View annual growing degree days data
| Vintage | Growing degree days | Change from 1991–2020 |
|---|---|---|
| 1991 | 1503 GDD | -274 GDD |
| 1992 | 1947 GDD | +170 GDD |
| 1993 | 1812 GDD | +35 GDD |
| 1994 | 1684 GDD | -93 GDD |
| 1995 | 1692 GDD | -85 GDD |
| 1996 | 1821 GDD | +43 GDD |
| 1997 | 1968 GDD | +191 GDD |
| 1998 | 1627 GDD | -150 GDD |
| 1999 | 1513 GDD | -264 GDD |
| 2000 | 1740 GDD | -37 GDD |
| 2001 | 1781 GDD | +4 GDD |
| 2002 | 1607 GDD | -170 GDD |
| 2003 | 1832 GDD | +55 GDD |
| 2004 | 1793 GDD | +16 GDD |
| 2005 | 1645 GDD | -132 GDD |
| 2006 | 1722 GDD | -55 GDD |
| 2007 | 1689 GDD | -88 GDD |
| 2008 | 1751 GDD | -26 GDD |
| 2009 | 1772 GDD | -5 GDD |
| 2010 | 1540 GDD | -237 GDD |
| 2011 | 1584 GDD | -193 GDD |
| 2012 | 1735 GDD | -43 GDD |
| 2013 | 1835 GDD | +58 GDD |
| 2014 | 2043 GDD | +265 GDD |
| 2015 | 2087 GDD | +310 GDD |
| 2016 | 1918 GDD | +141 GDD |
| 2017 | 2016 GDD | +238 GDD |
| 2018 | 1878 GDD | +100 GDD |
| 2019 | 1830 GDD | +52 GDD |
| 2020 | 1952 GDD | +175 GDD |
| 2021 | 1796 GDD | +19 GDD |
| 2022 | 1963 GDD | +186 GDD |
| 2023 | 1679 GDD | -98 GDD |
| 2024 | 1810 GDD | +32 GDD |
| 2025 | 1728 GDD | -49 GDD |
- Growing-season mean temperature
- +0.22 °C per decade 95% interval +0.02 to +0.42
- Growing degree days
- +48.88 GDD per decade 95% interval +3.81 to +93.96
- Growing-season precipitation
- -13.75 mm per decade 95% interval -29.12 to +1.62
- Hot days
- +0.93 days per decade 95% interval +0.52 to +1.33
- Spring frost days
- No variation recorded
- Longest dry spell
- +8.31 days per decade 95% interval -3.14 to +19.76
Last Updated August 20, 2026
Model ensemble
Projected climate through 2075
Temperature changes are relative to each model’s 1991–2020 baseline. The table combines all three pathways, weighted 70% to SSP2-4.5 and 15% each to SSP1-2.6 and SSP3-7.0.
Scroll horizontally to compare all columns.
| Period | Weighted median | Weighted central 80% | Models per pathway |
|---|---|---|---|
| 2021-2040 | +0.9°C | +0.5 to +1.2°C | 25 |
| 2041-2060 | +1.3°C | +1.0 to +2.0°C | 25 |
| 2061-2075 | +1.8°C | +1.2 to +2.5°C | 25 |
How pathways are combined
For each period and percentile, Weather & Vines takes 70% of the SSP2-4.5 value, 15% of the SSP1-2.6 value, and 15% of the SSP3-7.0 value. Each pathway contains the same 25 models. The weights are an editorial view of the current trajectory, not scenario probabilities.
Last Updated June 29, 2025
Typical year · 1991–2020
When to visit
This calendar describes typical regional weather under the selected climate baseline. It is not a forecast for a future trip, and it does not account for crowds, lodging, events, or vineyard access.
Deterministic IFS forecast
Next ten days
Scroll horizontally to see all forecast dates.
| Date | Sun | Mon | Tue | Wed | Thu | Fri | Sat | Sun | Mon | Tue |
|---|---|---|---|---|---|---|---|---|---|---|
| High | 21°C | 19°C | 20°C | 23°C | 23°C | 23°C | 22°C | 24°C | 24°C | 25°C |
| Low | 11°C | 13°C | 13°C | 11°C | 12°C | 13°C | 13°C | 17°C | 20°C | 21°C |
| Rain | 0.0 mm | 0.2 mm | 0.0 mm | 0.0 mm | 0.0 mm | 0.0 mm | 0.0 mm | 2.4 mm | 42.8 mm | 8.6 mm |
Across the typical year: Early August has the warmest median afternoon high (28.0°C); Late December has the coolest (16.2°C). Wet days are most frequent in Late February (36%) and least frequent in Early August (0%). Ties are resolved by calendar order.
Afternoon highOvernight lowMiddle 50%
Scroll horizontally to inspect all 24 half-month periods.
Scroll horizontally to inspect all 24 half-month periods.
View all 24 periods as a table
Scroll horizontally to view all columns.
| Period | Afternoon high, median (middle 50%) | Overnight low, median (middle 50%) | Wet-day frequency | Period rain, median (middle 50%) |
|---|---|---|---|---|
| Jan 1–15 | 17.0°C (14.6–19.7°C) | 4.8°C (3.0–6.6°C) | 27% | 21.2 mm (1.1–87.0 mm) |
| Jan 16–31 | 17.2°C (15.1–20.2°C) | 4.7°C (2.9–7.1°C) | 27% | 33.5 mm (4.3–61.5 mm) |
| Feb 1–15 | 17.5°C (15.4–20.5°C) | 5.7°C (3.3–7.7°C) | 28% | 25.6 mm (6.6–63.3 mm) |
| Feb 16–29 | 16.7°C (14.5–19.6°C) | 5.7°C (3.7–7.6°C) | 36% | 41.9 mm (6.4–84.1 mm) |
| Mar 1–15 | 18.4°C (15.9–21.5°C) | 6.6°C (4.6–8.3°C) | 28% | 18.3 mm (7.5–53.0 mm) |
| Mar 16–31 | 19.4°C (16.8–21.6°C) | 6.9°C (5.3–8.3°C) | 24% | 15.8 mm (2.3–66.9 mm) |
| Apr 1–15 | 20.2°C (17.5–22.0°C) | 7.0°C (5.5–8.2°C) | 18% | 5.9 mm (1.4–20.8 mm) |
| Apr 16–30 | 21.4°C (18.6–24.6°C) | 7.9°C (6.6–9.3°C) | 10% | 3.3 mm (0.8–10.6 mm) |
| May 1–15 | 22.4°C (20.2–25.1°C) | 8.7°C (7.7–10.1°C) | 6% | 0.7 mm (0.1–4.3 mm) |
| May 16–31 | 22.8°C (20.9–24.9°C) | 9.7°C (8.4–10.8°C) | 5% | 0.5 mm (0.1–4.5 mm) |
| Jun 1–15 | 24.4°C (22.6–26.5°C) | 10.6°C (9.6–11.7°C) | 2% | 0.1 mm (0.0–0.8 mm) |
| Jun 16–30 | 26.0°C (24.3–28.0°C) | 11.5°C (10.6–12.5°C) | 1% | 0.1 mm (0.0–0.2 mm) |
| Jul 1–15 | 27.2°C (25.6–29.0°C) | 12.5°C (11.6–13.6°C) | 0% | 0.1 mm (0.0–0.1 mm) |
| Jul 16–31 | 27.6°C (26.0–29.3°C) | 13.0°C (12.1–14.4°C) | 1% | 0.0 mm (0.0–0.1 mm) |
| Aug 1–15 | 28.0°C (26.2–29.9°C) | 12.9°C (12.1–14.1°C) | 0% | 0.0 mm (0.0–0.1 mm) |
| Aug 16–31 | 27.9°C (26.4–29.4°C) | 12.8°C (11.8–13.8°C) | 0% | 0.0 mm (0.0–0.1 mm) |
| Sep 1–15 | 27.3°C (25.5–29.0°C) | 12.3°C (11.2–13.7°C) | 1% | 0.1 mm (0.0–0.6 mm) |
| Sep 16–30 | 26.9°C (25.1–29.1°C) | 11.8°C (10.9–12.7°C) | 2% | 0.1 mm (0.0–0.6 mm) |
| Oct 1–15 | 25.2°C (22.7–28.2°C) | 10.3°C (9.0–11.7°C) | 6% | 0.7 mm (0.0–5.8 mm) |
| Oct 16–31 | 24.0°C (21.2–26.5°C) | 9.3°C (7.7–10.7°C) | 10% | 2.3 mm (0.2–11.3 mm) |
| Nov 1–15 | 21.6°C (18.9–24.2°C) | 7.6°C (5.7–9.1°C) | 12% | 6.2 mm (0.5–21.4 mm) |
| Nov 16–30 | 19.4°C (17.6–21.5°C) | 6.1°C (4.1–7.8°C) | 16% | 5.2 mm (1.6–34.3 mm) |
| Dec 1–15 | 17.5°C (15.7–19.4°C) | 4.8°C (2.8–7.0°C) | 24% | 17.8 mm (8.1–35.1 mm) |
| Dec 16–31 | 16.2°C (14.2–19.0°C) | 3.8°C (2.2–5.9°C) | 25% | 18.9 mm (6.7–45.7 mm) |
Each year contributes to temperature or rain separately when at least 90% of that period’s days are present. A value is shown only when at least 80% of the baseline years qualify. February 29 is included in late February.
Historical climatology Last Updated August 20, 2026
Season to date
Growing season heat and rainfall
Mar 15–Aug 29, 2026
Growing degree days1375.2base 10°C
Growing-season rainfall37.9 mmweighted regional total
2026 season1991–2020 average
2026 season1991–2020 average
View growing-season accumulation data
| Date | Season GDD | 1991–2020 average GDD | Season rainfall | 1991–2020 average rainfall |
|---|---|---|---|---|
| 2026-03-15 | 7.6 | 3.6 | 0.0 mm | 3.2 mm |
| 2026-03-16 | 17.0 | 7.4 | 0.0 mm | 4.8 mm |
| 2026-03-17 | 29.6 | 10.9 | 0.0 mm | 7.5 mm |
| 2026-03-18 | 42.4 | 14.3 | 0.0 mm | 10.5 mm |
| 2026-03-19 | 54.5 | 18.0 | 0.0 mm | 13.5 mm |
| 2026-03-20 | 66.9 | 21.5 | 0.0 mm | 19.0 mm |
| 2026-03-21 | 76.9 | 24.6 | 0.0 mm | 22.5 mm |
| 2026-03-22 | 85.2 | 27.4 | 0.0 mm | 26.5 mm |
| 2026-03-23 | 94.9 | 30.0 | 0.0 mm | 30.0 mm |
| 2026-03-24 | 104.1 | 32.4 | 0.0 mm | 31.9 mm |
| 2026-03-25 | 111.7 | 35.0 | 0.0 mm | 37.3 mm |
| 2026-03-26 | 119.2 | 37.9 | 0.0 mm | 39.5 mm |
| 2026-03-27 | 127.6 | 40.9 | 0.0 mm | 40.8 mm |
| 2026-03-28 | 135.1 | 43.9 | 0.0 mm | 42.4 mm |
| 2026-03-29 | 143.5 | 47.1 | 0.0 mm | 42.7 mm |
| 2026-03-30 | 150.7 | 50.7 | 0.0 mm | 42.8 mm |
| 2026-03-31 | 157.0 | 54.5 | 0.5 mm | 43.8 mm |
| 2026-04-01 | 161.7 | 58.1 | 1.2 mm | 45.1 mm |
| 2026-04-02 | 166.7 | 61.1 | 1.2 mm | 45.7 mm |
| 2026-04-03 | 171.7 | 64.5 | 1.2 mm | 47.1 mm |
| 2026-04-04 | 179.4 | 67.8 | 1.2 mm | 48.4 mm |
| 2026-04-05 | 187.6 | 71.0 | 1.2 mm | 49.8 mm |
| 2026-04-06 | 195.5 | 74.4 | 1.2 mm | 51.1 mm |
| 2026-04-07 | 202.0 | 77.9 | 1.2 mm | 52.6 mm |
| 2026-04-08 | 209.3 | 81.3 | 1.2 mm | 53.5 mm |
| 2026-04-09 | 216.8 | 84.6 | 1.2 mm | 54.2 mm |
| 2026-04-10 | 222.5 | 88.0 | 1.9 mm | 54.8 mm |
| 2026-04-11 | 227.4 | 91.7 | 7.2 mm | 56.9 mm |
| 2026-04-12 | 230.8 | 95.5 | 15.0 mm | 58.7 mm |
| 2026-04-13 | 233.1 | 99.3 | 15.5 mm | 60.3 mm |
| 2026-04-14 | 236.7 | 102.8 | 15.5 mm | 61.1 mm |
| 2026-04-15 | 240.9 | 106.4 | 15.5 mm | 61.4 mm |
| 2026-04-16 | 246.0 | 110.0 | 15.5 mm | 61.9 mm |
| 2026-04-17 | 250.8 | 114.1 | 15.5 mm | 64.1 mm |
| 2026-04-18 | 256.7 | 118.2 | 15.5 mm | 65.1 mm |
| 2026-04-19 | 262.9 | 122.6 | 15.5 mm | 65.3 mm |
| 2026-04-20 | 267.1 | 127.3 | 15.5 mm | 66.2 mm |
| 2026-04-21 | 271.8 | 132.0 | 26.9 mm | 66.8 mm |
| 2026-04-22 | 275.2 | 136.5 | 30.1 mm | 66.9 mm |
| 2026-04-23 | 280.5 | 141.1 | 30.1 mm | 67.2 mm |
| 2026-04-24 | 285.4 | 146.0 | 30.1 mm | 67.3 mm |
| 2026-04-25 | 288.5 | 151.3 | 31.3 mm | 67.7 mm |
| 2026-04-26 | 291.3 | 156.8 | 32.3 mm | 68.6 mm |
| 2026-04-27 | 294.2 | 162.2 | 32.4 mm | 68.9 mm |
| 2026-04-28 | 297.4 | 167.6 | 32.4 mm | 69.5 mm |
| 2026-04-29 | 302.9 | 173.1 | 32.4 mm | 69.6 mm |
| 2026-04-30 | 309.1 | 178.6 | 32.4 mm | 69.7 mm |
| 2026-05-01 | 316.0 | 184.5 | 32.4 mm | 69.8 mm |
| 2026-05-02 | 322.0 | 190.4 | 32.4 mm | 70.7 mm |
| 2026-05-03 | 326.8 | 196.4 | 32.4 mm | 71.7 mm |
| 2026-05-04 | 330.1 | 202.2 | 32.4 mm | 71.9 mm |
| 2026-05-05 | 334.3 | 207.8 | 32.4 mm | 73.0 mm |
| 2026-05-06 | 339.6 | 213.3 | 32.4 mm | 73.4 mm |
| 2026-05-07 | 347.1 | 218.9 | 32.4 mm | 73.8 mm |
| 2026-05-08 | 354.9 | 224.7 | 32.4 mm | 74.1 mm |
| 2026-05-09 | 361.9 | 230.5 | 32.4 mm | 74.3 mm |
| 2026-05-10 | 369.8 | 235.9 | 32.4 mm | 74.3 mm |
| 2026-05-11 | 378.4 | 241.4 | 32.4 mm | 74.3 mm |
| 2026-05-12 | 385.5 | 247.2 | 32.4 mm | 74.8 mm |
| 2026-05-13 | 392.5 | 253.1 | 32.4 mm | 75.2 mm |
| 2026-05-14 | 398.8 | 258.9 | 32.4 mm | 75.4 mm |
| 2026-05-15 | 405.3 | 265.2 | 32.4 mm | 76.0 mm |
| 2026-05-16 | 410.9 | 271.5 | 32.4 mm | 77.1 mm |
| 2026-05-17 | 415.6 | 277.6 | 32.4 mm | 77.5 mm |
| 2026-05-18 | 421.5 | 283.8 | 32.4 mm | 77.9 mm |
| 2026-05-19 | 430.0 | 290.1 | 32.4 mm | 78.4 mm |
| 2026-05-20 | 438.7 | 296.3 | 32.4 mm | 78.6 mm |
| 2026-05-21 | 446.9 | 302.4 | 32.4 mm | 79.1 mm |
| 2026-05-22 | 454.1 | 308.5 | 32.4 mm | 79.7 mm |
| 2026-05-23 | 460.0 | 314.5 | 32.4 mm | 79.7 mm |
| 2026-05-24 | 466.1 | 320.5 | 32.4 mm | 79.8 mm |
| 2026-05-25 | 471.4 | 326.5 | 32.4 mm | 79.9 mm |
| 2026-05-26 | 476.4 | 332.6 | 32.4 mm | 80.0 mm |
| 2026-05-27 | 480.6 | 339.0 | 32.4 mm | 80.0 mm |
| 2026-05-28 | 482.7 | 345.8 | 35.2 mm | 80.1 mm |
| 2026-05-29 | 487.6 | 352.7 | 37.3 mm | 80.3 mm |
| 2026-05-30 | 494.4 | 359.8 | 37.3 mm | 80.3 mm |
| 2026-05-31 | 501.4 | 367.1 | 37.3 mm | 80.3 mm |
| 2026-06-01 | 509.2 | 374.5 | 37.3 mm | 80.3 mm |
| 2026-06-02 | 517.1 | 382.0 | 37.3 mm | 80.4 mm |
| 2026-06-03 | 525.6 | 389.6 | 37.3 mm | 80.4 mm |
| 2026-06-04 | 534.0 | 397.3 | 37.3 mm | 80.6 mm |
| 2026-06-05 | 543.0 | 404.6 | 37.3 mm | 81.3 mm |
| 2026-06-06 | 551.3 | 411.8 | 37.3 mm | 81.6 mm |
| 2026-06-07 | 557.5 | 418.9 | 37.3 mm | 81.6 mm |
| 2026-06-08 | 564.2 | 426.3 | 37.3 mm | 81.6 mm |
| 2026-06-09 | 572.2 | 434.1 | 37.3 mm | 81.7 mm |
| 2026-06-10 | 582.9 | 442.1 | 37.3 mm | 81.8 mm |
| 2026-06-11 | 594.5 | 449.8 | 37.3 mm | 81.8 mm |
| 2026-06-12 | 605.8 | 457.4 | 37.3 mm | 81.8 mm |
| 2026-06-13 | 616.0 | 465.2 | 37.3 mm | 81.8 mm |
| 2026-06-14 | 625.3 | 473.3 | 37.3 mm | 81.9 mm |
| 2026-06-15 | 634.8 | 481.3 | 37.3 mm | 81.9 mm |
| 2026-06-16 | 644.6 | 489.2 | 37.3 mm | 82.2 mm |
| 2026-06-17 | 653.6 | 497.5 | 37.3 mm | 82.3 mm |
| 2026-06-18 | 661.4 | 506.0 | 37.4 mm | 82.3 mm |
| 2026-06-19 | 668.7 | 514.8 | 37.4 mm | 82.3 mm |
| 2026-06-20 | 675.5 | 523.5 | 37.4 mm | 82.3 mm |
| 2026-06-21 | 683.4 | 532.2 | 37.4 mm | 82.3 mm |
| 2026-06-22 | 692.3 | 540.8 | 37.4 mm | 82.3 mm |
| 2026-06-23 | 701.4 | 549.6 | 37.4 mm | 82.3 mm |
| 2026-06-24 | 710.0 | 558.4 | 37.4 mm | 82.3 mm |
| 2026-06-25 | 718.3 | 567.4 | 37.4 mm | 82.3 mm |
| 2026-06-26 | 726.6 | 576.6 | 37.4 mm | 82.3 mm |
| 2026-06-27 | 734.8 | 586.0 | 37.4 mm | 82.4 mm |
| 2026-06-28 | 741.9 | 595.5 | 37.4 mm | 82.5 mm |
| 2026-06-29 | 748.7 | 605.1 | 37.4 mm | 82.5 mm |
| 2026-06-30 | 756.0 | 614.8 | 37.4 mm | 82.5 mm |
| 2026-07-01 | 763.3 | 624.6 | 37.4 mm | 82.5 mm |
| 2026-07-02 | 770.6 | 634.4 | 37.4 mm | 82.5 mm |
| 2026-07-03 | 778.7 | 644.1 | 37.4 mm | 82.5 mm |
| 2026-07-04 | 787.6 | 653.7 | 37.4 mm | 82.5 mm |
| 2026-07-05 | 797.8 | 663.4 | 37.4 mm | 82.5 mm |
| 2026-07-06 | 807.5 | 673.3 | 37.4 mm | 82.6 mm |
| 2026-07-07 | 817.1 | 683.2 | 37.4 mm | 82.6 mm |
| 2026-07-08 | 826.7 | 693.4 | 37.4 mm | 82.6 mm |
| 2026-07-09 | 836.5 | 703.6 | 37.4 mm | 82.6 mm |
| 2026-07-10 | 847.0 | 713.8 | 37.4 mm | 82.6 mm |
| 2026-07-11 | 857.5 | 723.9 | 37.4 mm | 82.7 mm |
| 2026-07-12 | 870.2 | 734.3 | 37.6 mm | 82.8 mm |
| 2026-07-13 | 884.1 | 744.8 | 37.6 mm | 82.8 mm |
| 2026-07-14 | 898.4 | 755.2 | 37.6 mm | 82.8 mm |
| 2026-07-15 | 912.4 | 765.6 | 37.6 mm | 82.8 mm |
| 2026-07-16 | 925.5 | 775.9 | 37.6 mm | 82.8 mm |
| 2026-07-17 | 936.3 | 786.3 | 37.6 mm | 82.8 mm |
| 2026-07-18 | 946.7 | 796.6 | 37.6 mm | 82.8 mm |
| 2026-07-19 | 957.5 | 807.1 | 37.6 mm | 83.2 mm |
| 2026-07-20 | 970.0 | 817.3 | 37.6 mm | 83.2 mm |
| 2026-07-21 | 984.6 | 827.6 | 37.6 mm | 83.2 mm |
| 2026-07-22 | 997.8 | 838.0 | 37.6 mm | 83.3 mm |
| 2026-07-23 | 1009.3 | 848.5 | 37.6 mm | 83.3 mm |
| 2026-07-24 | 1021.1 | 859.1 | 37.6 mm | 83.3 mm |
| 2026-07-25 | 1034.4 | 869.8 | 37.6 mm | 83.3 mm |
| 2026-07-26 | 1046.3 | 880.6 | 37.6 mm | 83.3 mm |
| 2026-07-27 | 1057.6 | 891.3 | 37.6 mm | 83.3 mm |
| 2026-07-28 | 1068.6 | 902.0 | 37.6 mm | 83.3 mm |
| 2026-07-29 | 1079.6 | 912.4 | 37.6 mm | 83.3 mm |
| 2026-07-30 | 1091.3 | 923.1 | 37.6 mm | 83.4 mm |
| 2026-07-31 | 1103.7 | 933.7 | 37.6 mm | 83.4 mm |
| 2026-08-01 | 1116.3 | 944.6 | 37.6 mm | 83.4 mm |
| 2026-08-02 | 1129.0 | 955.5 | 37.6 mm | 83.4 mm |
| 2026-08-03 | 1140.8 | 966.2 | 37.6 mm | 83.4 mm |
| 2026-08-04 | 1151.7 | 976.7 | 37.6 mm | 83.4 mm |
| 2026-08-05 | 1162.4 | 987.0 | 37.6 mm | 83.4 mm |
| 2026-08-06 | 1174.1 | 997.2 | 37.6 mm | 83.4 mm |
| 2026-08-07 | 1186.9 | 1007.3 | 37.6 mm | 83.4 mm |
| 2026-08-08 | 1200.1 | 1017.4 | 37.6 mm | 83.4 mm |
| 2026-08-09 | 1212.8 | 1027.9 | 37.6 mm | 83.4 mm |
| 2026-08-10 | 1225.6 | 1038.4 | 37.6 mm | 83.4 mm |
| 2026-08-11 | 1237.7 | 1049.0 | 37.6 mm | 83.4 mm |
| 2026-08-12 | 1249.1 | 1059.6 | 37.7 mm | 83.4 mm |
| 2026-08-13 | 1258.9 | 1070.7 | 37.8 mm | 83.5 mm |
| 2026-08-14 | 1269.0 | 1081.8 | 37.9 mm | 83.5 mm |
| 2026-08-15 | 1279.0 | 1092.8 | 37.9 mm | 83.5 mm |
| 2026-08-16 | 1289.3 | 1103.7 | 37.9 mm | 83.5 mm |
| 2026-08-17 | 1300.4 | 1114.5 | 37.9 mm | 83.5 mm |
| 2026-08-18 | 1312.5 | 1125.0 | 37.9 mm | 83.5 mm |
| 2026-08-19 | 1324.6 | 1135.4 | 37.9 mm | 83.6 mm |
| 2026-08-20 | 1336.4 | 1145.4 | 37.9 mm | 83.6 mm |
| 2026-08-21 | 1349.0 | 1155.4 | 37.9 mm | 83.6 mm |
| 2026-08-22 | 1362.1 | 1165.6 | 37.9 mm | 83.6 mm |
| 2026-08-23 | 1375.2 | 1175.7 | 37.9 mm | 83.6 mm |
Forecast outlook
ECMWF IFS 0.25° via Herbie · run Aug 30, 2026 at 00:00 UTC
10-day totals compared with the 1991–2020 combined regional record
- GDD accumulation
- 82 GDDvs 106 GDD average
- Total rainfall
- 54.0 mmvs 0.6 mm average
A notable amount of rain is forecast during the period. The 10-day total meets the 30 mm forecast threshold, with rain forecast Aug 30–Sep 1 and Sep 4–8.
Sun8/30
21°Cavg 28°C
11°Cavg 13°C
+5 GDD
0.0 mm
Mon8/31
19°Cavg 28°C
13°Cavg 13°C
+5 GDD
0.2 mm
Tue9/1
20°Cavg 28°C
13°Cavg 13°C
+6 GDD
0.0 mm
Wed9/2
23°Cavg 29°C
11°Cavg 13°C
+6 GDD
0.0 mm
Thu9/3
23°Cavg 28°C
12°Cavg 13°C
+7 GDD
0.0 mm
Fri9/4
23°Cavg 28°C
13°Cavg 13°C
+7 GDD
0.0 mm
Sat9/5
22°Cavg 28°C
13°Cavg 13°C
+8 GDD
0.0 mm
Sun9/6
24°Cavg 29°C
17°Cavg 13°C
+11 GDD
2.4 mm
Mon9/7
24°Cavg 29°C
20°Cavg 13°C
+12 GDD
42.8 mm
Tue9/8
25°Cavg 27°C
21°Cavg 13°C
+14 GDD
8.6 mm
Data and methods
Show data sources and model assumptions
Current temperature, dew point, humidity, and wind use geographically weighted NWS station observations. The 24-hour rain total and 10-day outlook use the 00 UTC deterministic ECMWF IFS 0.25° public forecast retrieved directly with Herbie. Historical temperature and rain combine qualifying GHCN-D stations with ERA5 by geographic area; a missing station day uses the nearest ERA5 value for that station's area. Climate comparisons use 1991–2020.
Forecast comparisons use the 1991–2020 combined regional daily record. Daily high and low averages use the matching date; rainfall and GDD sum the same calendar dates as the forecast period.
This service is based on data and products of the European Centre for Medium-Range Weather Forecasts (ECMWF). Weather & Vines subsets, converts, and regionally weights the forecast fields. ECMWF data are published under CC BY 4.0. ECMWF accepts no liability for errors, omissions, availability, loss, or damage arising from their use.
Climate projections use NASA NEX-GDDP-CMIP6 v2.0, accessed August 23, 2026, with 25 models. Weather & Vines subsets and aggregates the source fields. Source files and derived projection data are under CC BY-SA 4.0; the full roster and limitations are listed in the climate atlas methods.
The Paso Robles & Santa Barbara County model uses a March 15–October 31 growing season, base 10°C GDD, and an operational hot-day marker of 35°C.
- Paso Robles Wine Country Alliance: harvest conditions by vintage, late August into October
- WMO climate normals guidance
The historical series uses 2 ERA5 locations, 16 temperature stations, and 13 rain stations. Interpretation confidence: high. Geometry confidence: reviewed-approximate. Rules: paso-robles-catalog-v1-2026-07.