United States · Multi-region weather view
Santa Cruz Mountains
Sign in to followMountain vineyards between the Pacific coast and Santa Clara Valley.
Elevation, slope exposure, and marine fog create sharp temperature differences over short distances.
Climate comparisons use the 1991–2020 combined regional record · updated through Aug 20, 2026.
Current conditions
Observations through Aug 30, 2026 · 23:50 UTC
Temperature23.3°C
Dew Point11.4°C
Relative Humidity47%
24h Rainfall0.0 mmmodeled IFS total through Aug 29
NWS station average · 1 station
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.
- BNDC1 — BEN LOMOND · 100% regional weight
NOAA National Weather Service observations. Station readings are point measurements and may not represent every vineyard elevation or exposure.
Vintage explorer
Mean temperature17.7°C
Temperature anomaly+0.7°Cvs 1991-2020
Growing degree days1656base 10°C
Hot days8≥ 32°C
What stood out in 1997
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 1997?
The ranking compares vintages that meet the data-coverage threshold and use the same source, regional rules, and 1991-2020 baseline.
Growing-season temperature
8th warmest of 35 vintages Warmer than 26 of 34 other vintages 17.7°CGrowing-season rainfall
5th driest of 35 vintages Drier than 30 of 34 other vintages 59.2 mmHeat accumulation
9th highest of 35 vintages Higher than 26 of 34 other vintages 1657 GDDHot days
17th most of 35 vintages More than 15 of 34 other vintages 8 days1997 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 watchHeat accumulation
1997 0 GDDTypical 78 GDDRainfall
1997 21.1 mmTypical 113.6 mm- 1997 freezing days
- 0
- Typical
- 0.0
Heat accumulation ran behind the typical month.
-
1–30 Frost watchGrowing seasonHeat accumulation
1997 128 GDDTypical 106 GDDRainfall
1997 15.3 mmTypical 52.5 mm- 1997 freezing days
- 0
- Typical
- 0.0
Heat accumulation ran ahead of the typical month.
-
1–31 Frost watchGrowing seasonHeat accumulation
1997 248 GDDTypical 167 GDDRainfall
1997 4.7 mmTypical 23.1 mm- 1997 freezing days
- 0
- Typical
- 0.0
Heat accumulation ran ahead of the typical month.
-
1–30 Growing seasonHeat accumulation
1997 219 GDDTypical 222 GDDRainfall
1997 6.1 mmTypical 5.8 mmClose to the typical monthly pattern.
-
1–31 Growing seasonHeat accumulation
1997 267 GDDTypical 271 GDDRainfall
1997 0.4 mmTypical 0.7 mmClose to the typical monthly pattern.
-
1–31 Growing seasonHeat accumulation
1997 298 GDDTypical 281 GDDRainfall
1997 16.0 mmTypical 1.4 mmWetter than the typical month.
-
1–30 Growing seasonHarvest windowHeat accumulation
1997 306 GDDTypical 263 GDDRainfall
1997 0.3 mmTypical 2.9 mmClose to the typical monthly pattern.
-
1–31 Growing seasonHarvest windowHeat accumulation
1997 190 GDDTypical 206 GDDRainfall
1997 16.3 mmTypical 34.8 mmDrier than the typical month.
View milestone calendar data as a table
| Month | 1997 GDD | Typical GDD | 1997 rainfall | Typical rainfall | 1997 freezing days | Typical freezing days |
|---|---|---|---|---|---|---|
| March 1997 | 0 GDD | 78 GDD | 21.1 mm | 113.6 mm | 0 | 0.0 |
| April 1997 | 128 GDD | 106 GDD | 15.3 mm | 52.5 mm | 0 | 0.0 |
| May 1997 | 248 GDD | 167 GDD | 4.7 mm | 23.1 mm | 0 | 0.0 |
| June 1997 | 219 GDD | 222 GDD | 6.1 mm | 5.8 mm | Outside frost window | Outside frost window |
| July 1997 | 267 GDD | 271 GDD | 0.4 mm | 0.7 mm | Outside frost window | Outside frost window |
| August 1997 | 298 GDD | 281 GDD | 16.0 mm | 1.4 mm | Outside frost window | Outside frost window |
| September 1997 | 306 GDD | 263 GDD | 0.3 mm | 2.9 mm | Outside frost window | Outside frost window |
| October 1997 | 190 GDD | 206 GDD | 16.3 mm | 34.8 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 1997 growing season
214 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
2013
Most alike in Spring frost exposure and Harvest precipitation.
- Spring frost exposure
- the same: 0 days
- Harvest precipitation
- less rain: 2.7 mm
Largest difference: Hot-day count — fewer hot days
View 2013 →Second closest
2022
Most alike in Growing-season mean temperature and Spring frost exposure.
- Growing-season mean temperature
- the same: 0.0°C
- Spring frost exposure
- the same: 0 days
Largest difference: Hot-day count — more hot days
View 2022 →Third closest
2024
Most alike in Spring frost exposure and Growing-season mean temperature.
- Spring frost exposure
- the same: 0 days
- Growing-season mean temperature
- warmer: 0.0°C
Largest difference: Hot-day count — more hot days
View 2024 →
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%); Spring frost exposure (10%).
Calculated distances: 2013 0.385; 2022 0.421; 2024 0.496.
View historical chart data as a table
| Year | Temperature anomaly | Rainfall anomaly | Hot days |
|---|---|---|---|
| 1991 | -1.1°C | -26 mm | 3 |
| 1992 | +0.7°C | -42 mm | 2 |
| 1993 | +0.1°C | -36 mm | 9 |
| 1994 | -0.8°C | -3 mm | 5 |
| 1995 | -0.3°C | +35 mm | 9 |
| 1996 | +0.0°C | +61 mm | 12 |
| 1997 | +0.7°C | -62 mm | 8 |
| 1998 | -0.8°C | +82 mm | 8 |
| 1999 | -0.9°C | -27 mm | 7 |
| 2000 | -0.2°C | +90 mm | 7 |
| 2001 | -0.1°C | -54 mm | 8 |
| 2002 | -0.5°C | -70 mm | 12 |
| 2003 | +0.2°C | +31 mm | 13 |
| 2004 | +0.0°C | +34 mm | 9 |
| 2005 | -0.6°C | +17 mm | 1 |
| 2006 | -0.2°C | +102 mm | 7 |
| 2007 | -0.6°C | -21 mm | 5 |
| 2008 | -0.2°C | -91 mm | 14 |
| 2009 | -0.2°C | +75 mm | 10 |
| 2010 | -1.1°C | +88 mm | 9 |
| 2011 | -0.8°C | +53 mm | 3 |
| 2012 | -0.2°C | -3 mm | 4 |
| 2013 | +0.5°C | -82 mm | 4 |
| 2014 | +1.1°C | -51 mm | 11 |
| 2015 | +1.1°C | -62 mm | 16 |
| 2016 | +0.5°C | +65 mm | 7 |
| 2017 | +1.1°C | -26 mm | 18 |
| 2018 | +0.3°C | -44 mm | 1 |
| 2019 | +0.8°C | -6 mm | 13 |
| 2020 | +1.4°C | -28 mm | 25 |
| 2021 | +0.1°C | +47 mm | 7 |
| 2022 | +0.7°C | -30 mm | 12 |
| 2023 | +0.1°C | -64 mm | 8 |
| 2024 | +0.7°C | -45 mm | 14 |
| 2025 | +0.1°C | -36 mm | 3 |
| 2026 | -0.1°C | +12 mm | 0 |
winter
10.9°C
+0.4°C vs baseline
664 mm rain · +195 mm
spring
15.1°C
+1.4°C vs baseline
41 mm rain · -148 mm
summer
18.5°C
+0.1°C vs baseline
22 mm rain · +15 mm
harvest
18.1°C
+0.5°C vs baseline
16 mm rain · -21 mm
Weather events
Periods that crossed one of the published regional thresholds, shown in date order.
Dry spell
- Duration
- 17 days
- Total rain
- 0.2 mm
- Daily cutoff
- 1.0 mm/day
Dry spell
- Duration
- 33 days
- Total rain
- 1.5 mm
- Daily cutoff
- 1.0 mm/day
Heat episode
- Peak temperature
- 33.7°C
- Duration
- 2 days
- Heat accumulation
- 29 GDD
Dry spell
- Duration
- 75 days
- Total rain
- 1.9 mm
- Daily cutoff
- 1.0 mm/day
Dry spell
- Duration
- 42 days
- Total rain
- 0.6 mm
- Daily cutoff
- 1.0 mm/day
Heat episode
- Peak temperature
- 34.4°C
- Duration
- 2 days
- Heat accumulation
- 28 GDD
Dry spell
- Duration
- 21 days
- Total rain
- 0.3 mm
- Daily cutoff
- 1.0 mm/day
Heat episode
- Peak temperature
- 33.3°C
- Duration
- 2 days
- Heat accumulation
- 24 GDD
How events are detected
Weather & Vines combined regional series; method event-timeline-v2-2026-07, rules santa-cruz-mountains-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 +68.6 GDD per decade. The 95% interval is +33.0 to +104.3 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 April 1–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 | 1287 GDD | -228 GDD |
| 1992 | 1669 GDD | +154 GDD |
| 1993 | 1531 GDD | +16 GDD |
| 1994 | 1337 GDD | -178 GDD |
| 1995 | 1445 GDD | -70 GDD |
| 1996 | 1516 GDD | +1 GDD |
| 1997 | 1657 GDD | +142 GDD |
| 1998 | 1339 GDD | -176 GDD |
| 1999 | 1341 GDD | -174 GDD |
| 2000 | 1471 GDD | -44 GDD |
| 2001 | 1496 GDD | -19 GDD |
| 2002 | 1404 GDD | -112 GDD |
| 2003 | 1559 GDD | +43 GDD |
| 2004 | 1519 GDD | +4 GDD |
| 2005 | 1391 GDD | -124 GDD |
| 2006 | 1459 GDD | -56 GDD |
| 2007 | 1393 GDD | -122 GDD |
| 2008 | 1483 GDD | -33 GDD |
| 2009 | 1478 GDD | -37 GDD |
| 2010 | 1295 GDD | -220 GDD |
| 2011 | 1350 GDD | -165 GDD |
| 2012 | 1476 GDD | -39 GDD |
| 2013 | 1618 GDD | +103 GDD |
| 2014 | 1756 GDD | +240 GDD |
| 2015 | 1746 GDD | +231 GDD |
| 2016 | 1626 GDD | +111 GDD |
| 2017 | 1752 GDD | +237 GDD |
| 2018 | 1568 GDD | +53 GDD |
| 2019 | 1683 GDD | +168 GDD |
| 2020 | 1810 GDD | +295 GDD |
| 2021 | 1532 GDD | +17 GDD |
| 2022 | 1659 GDD | +144 GDD |
| 2023 | 1528 GDD | +13 GDD |
| 2024 | 1666 GDD | +151 GDD |
| 2025 | 1539 GDD | +24 GDD |
- Growing-season mean temperature
- +0.32 °C per decade 95% interval +0.15 to +0.49
- Growing degree days
- +68.65 GDD per decade 95% interval +32.98 to +104.32
- Growing-season precipitation
- -9.04 mm per decade 95% interval -23.00 to +4.92
- Hot days
- +1.37 days per decade 95% interval +0.02 to +2.72
- Spring frost days
- +0.00 days per decade 95% interval -0.02 to +0.02
- Longest dry spell
- +5.69 days per decade 95% interval -2.10 to +13.49
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 | +0.8°C | +0.4 to +1.2°C | 25 |
| 2041-2060 | +1.3°C | +0.9 to +2.0°C | 25 |
| 2061-2075 | +1.7°C | +1.2 to +2.6°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 | 27°C | 24°C | 22°C | 24°C | 24°C | 26°C | 24°C | 29°C | 26°C | 25°C |
| Low | 13°C | 12°C | 14°C | 11°C | 12°C | 15°C | 13°C | 13°C | 19°C | 19°C |
| Rain | 0.0 mm | 0.0 mm | 0.0 mm | 0.0 mm | 0.0 mm | 0.0 mm | 0.0 mm | 0.0 mm | 0.2 mm | 1.8 mm |
Across the typical year: Late August has the warmest median afternoon high (25.6°C); Late December has the coolest (14.9°C). Wet days are most frequent in Late February (44%) and least frequent in Late July (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 | 15.2°C (13.1–17.3°C) | 4.9°C (2.8–7.0°C) | 32% | 39.8 mm (6.5–128.9 mm) |
| Jan 16–31 | 15.7°C (13.6–18.5°C) | 5.0°C (3.0–7.2°C) | 36% | 51.8 mm (19.6–149.6 mm) |
| Feb 1–15 | 16.4°C (14.4–19.2°C) | 5.6°C (3.3–7.8°C) | 34% | 57.0 mm (15.3–92.3 mm) |
| Feb 16–29 | 15.7°C (13.6–18.7°C) | 5.8°C (3.8–7.5°C) | 44% | 73.6 mm (24.7–123.1 mm) |
| Mar 1–15 | 17.6°C (14.8–20.7°C) | 6.1°C (4.0–8.2°C) | 36% | 48.7 mm (23.4–79.3 mm) |
| Mar 16–31 | 18.3°C (15.8–20.9°C) | 6.5°C (4.8–8.1°C) | 33% | 34.8 mm (11.5–83.1 mm) |
| Apr 1–15 | 18.6°C (16.2–21.0°C) | 6.7°C (5.0–8.4°C) | 25% | 22.4 mm (9.5–63.0 mm) |
| Apr 16–30 | 20.2°C (17.6–23.5°C) | 7.5°C (6.1–9.1°C) | 18% | 13.9 mm (7.9–24.7 mm) |
| May 1–15 | 21.0°C (18.9–23.7°C) | 8.5°C (7.1–9.9°C) | 11% | 4.1 mm (0.3–18.7 mm) |
| May 16–31 | 21.3°C (19.3–23.8°C) | 9.5°C (8.2–10.8°C) | 10% | 1.8 mm (0.4–19.2 mm) |
| Jun 1–15 | 23.1°C (21.2–25.6°C) | 10.2°C (9.0–11.3°C) | 4% | 0.6 mm (0.2–4.2 mm) |
| Jun 16–30 | 24.3°C (22.4–26.7°C) | 10.8°C (9.6–12.1°C) | 3% | 0.3 mm (0.1–0.9 mm) |
| Jul 1–15 | 24.8°C (23.1–27.1°C) | 11.6°C (10.7–12.4°C) | 0% | 0.2 mm (0.1–0.4 mm) |
| Jul 16–31 | 25.1°C (23.7–27.0°C) | 12.3°C (11.5–13.1°C) | 0% | 0.2 mm (0.1–0.5 mm) |
| Aug 1–15 | 25.6°C (23.9–27.7°C) | 12.1°C (11.0–13.2°C) | 0% | 0.3 mm (0.2–0.5 mm) |
| Aug 16–31 | 25.6°C (23.8–27.5°C) | 12.1°C (11.1–13.1°C) | 1% | 0.2 mm (0.1–0.5 mm) |
| Sep 1–15 | 25.3°C (23.5–28.2°C) | 11.6°C (10.4–12.8°C) | 1% | 0.3 mm (0.2–0.5 mm) |
| Sep 16–30 | 25.2°C (22.9–28.7°C) | 11.2°C (10.0–12.2°C) | 2% | 0.4 mm (0.1–1.7 mm) |
| Oct 1–15 | 24.2°C (21.3–27.8°C) | 10.1°C (8.5–11.5°C) | 7% | 0.8 mm (0.2–11.5 mm) |
| Oct 16–31 | 22.6°C (19.8–25.8°C) | 9.0°C (7.3–10.3°C) | 13% | 4.7 mm (1.3–23.8 mm) |
| Nov 1–15 | 19.5°C (17.4–23.0°C) | 7.3°C (5.3–9.0°C) | 21% | 21.7 mm (4.6–43.6 mm) |
| Nov 16–30 | 17.5°C (15.5–19.7°C) | 5.8°C (3.9–7.8°C) | 27% | 33.6 mm (13.5–64.0 mm) |
| Dec 1–15 | 15.6°C (14.2–17.6°C) | 5.0°C (2.9–7.9°C) | 38% | 66.4 mm (22.9–119.6 mm) |
| Dec 16–31 | 14.9°C (13.1–16.9°C) | 4.0°C (2.2–6.1°C) | 33% | 56.8 mm (9.5–131.1 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
Apr 1–Aug 29, 2026
Growing degree days1014.1base 10°C
Growing-season rainfall133.5 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 |
|---|---|---|---|---|
| 2026-04-01 | 4.3 | 3.0 | 3.8 mm | 2.6 mm |
| 2026-04-02 | 6.7 | 5.9 | 7.3 mm | 3.5 mm |
| 2026-04-03 | 10.5 | 8.6 | 7.3 mm | 5.7 mm |
| 2026-04-04 | 17.5 | 11.2 | 7.3 mm | 8.6 mm |
| 2026-04-05 | 25.9 | 13.7 | 7.3 mm | 11.8 mm |
| 2026-04-06 | 31.8 | 16.4 | 7.3 mm | 13.7 mm |
| 2026-04-07 | 36.8 | 19.3 | 7.3 mm | 18.1 mm |
| 2026-04-08 | 43.0 | 21.9 | 7.3 mm | 20.5 mm |
| 2026-04-09 | 49.9 | 24.7 | 7.4 mm | 21.6 mm |
| 2026-04-10 | 55.3 | 27.7 | 16.5 mm | 22.6 mm |
| 2026-04-11 | 58.7 | 30.7 | 43.5 mm | 26.1 mm |
| 2026-04-12 | 60.6 | 33.9 | 67.5 mm | 29.8 mm |
| 2026-04-13 | 63.2 | 37.0 | 70.4 mm | 33.4 mm |
| 2026-04-14 | 65.7 | 39.9 | 70.4 mm | 34.1 mm |
| 2026-04-15 | 68.4 | 42.9 | 70.4 mm | 34.7 mm |
| 2026-04-16 | 72.4 | 46.1 | 70.4 mm | 36.5 mm |
| 2026-04-17 | 76.6 | 49.6 | 70.4 mm | 38.9 mm |
| 2026-04-18 | 81.6 | 53.0 | 70.4 mm | 39.7 mm |
| 2026-04-19 | 86.9 | 56.8 | 70.4 mm | 40.3 mm |
| 2026-04-20 | 91.1 | 61.0 | 77.0 mm | 42.3 mm |
| 2026-04-21 | 93.7 | 65.4 | 109.0 mm | 43.0 mm |
| 2026-04-22 | 96.0 | 69.6 | 114.5 mm | 44.0 mm |
| 2026-04-23 | 99.4 | 73.6 | 117.5 mm | 45.6 mm |
| 2026-04-24 | 103.7 | 78.0 | 117.5 mm | 46.8 mm |
| 2026-04-25 | 106.6 | 82.4 | 117.9 mm | 48.5 mm |
| 2026-04-26 | 109.4 | 87.0 | 118.9 mm | 48.9 mm |
| 2026-04-27 | 111.8 | 91.6 | 119.4 mm | 49.8 mm |
| 2026-04-28 | 114.8 | 95.9 | 119.4 mm | 50.8 mm |
| 2026-04-29 | 119.2 | 100.8 | 119.4 mm | 52.1 mm |
| 2026-04-30 | 124.3 | 105.9 | 119.4 mm | 52.5 mm |
| 2026-05-01 | 129.4 | 111.2 | 119.4 mm | 53.3 mm |
| 2026-05-02 | 134.1 | 116.7 | 119.4 mm | 54.2 mm |
| 2026-05-03 | 137.9 | 122.1 | 119.5 mm | 54.9 mm |
| 2026-05-04 | 140.6 | 127.2 | 119.9 mm | 55.5 mm |
| 2026-05-05 | 143.8 | 131.9 | 121.9 mm | 56.5 mm |
| 2026-05-06 | 149.3 | 136.6 | 121.9 mm | 56.9 mm |
| 2026-05-07 | 155.5 | 141.7 | 121.9 mm | 57.9 mm |
| 2026-05-08 | 161.1 | 146.8 | 121.9 mm | 58.6 mm |
| 2026-05-09 | 166.6 | 151.7 | 122.0 mm | 58.9 mm |
| 2026-05-10 | 172.3 | 156.5 | 122.1 mm | 59.1 mm |
| 2026-05-11 | 179.2 | 161.3 | 122.1 mm | 59.3 mm |
| 2026-05-12 | 185.6 | 166.2 | 122.1 mm | 60.1 mm |
| 2026-05-13 | 190.4 | 171.1 | 122.1 mm | 60.8 mm |
| 2026-05-14 | 195.5 | 176.2 | 122.1 mm | 61.3 mm |
| 2026-05-15 | 201.2 | 181.9 | 122.1 mm | 63.0 mm |
| 2026-05-16 | 206.3 | 187.6 | 122.1 mm | 65.4 mm |
| 2026-05-17 | 210.7 | 193.1 | 122.1 mm | 66.6 mm |
| 2026-05-18 | 219.8 | 198.6 | 122.1 mm | 68.0 mm |
| 2026-05-19 | 228.4 | 204.1 | 122.1 mm | 69.5 mm |
| 2026-05-20 | 237.5 | 209.6 | 122.1 mm | 70.8 mm |
| 2026-05-21 | 245.5 | 215.0 | 122.1 mm | 71.7 mm |
| 2026-05-22 | 251.8 | 220.4 | 122.1 mm | 71.9 mm |
| 2026-05-23 | 257.7 | 225.9 | 122.1 mm | 72.1 mm |
| 2026-05-24 | 263.4 | 231.4 | 122.1 mm | 72.3 mm |
| 2026-05-25 | 268.9 | 236.9 | 122.1 mm | 72.8 mm |
| 2026-05-26 | 273.0 | 242.2 | 122.5 mm | 73.1 mm |
| 2026-05-27 | 277.6 | 247.9 | 122.6 mm | 73.8 mm |
| 2026-05-28 | 282.0 | 253.8 | 129.7 mm | 74.8 mm |
| 2026-05-29 | 286.6 | 259.9 | 131.2 mm | 75.3 mm |
| 2026-05-30 | 291.8 | 266.2 | 131.2 mm | 75.4 mm |
| 2026-05-31 | 298.1 | 273.0 | 131.2 mm | 75.6 mm |
| 2026-06-01 | 306.3 | 279.9 | 131.2 mm | 75.7 mm |
| 2026-06-02 | 312.5 | 286.7 | 131.2 mm | 75.8 mm |
| 2026-06-03 | 319.3 | 293.5 | 131.2 mm | 76.1 mm |
| 2026-06-04 | 326.0 | 300.2 | 131.2 mm | 77.7 mm |
| 2026-06-05 | 333.0 | 306.7 | 131.2 mm | 77.9 mm |
| 2026-06-06 | 339.1 | 312.9 | 131.2 mm | 78.0 mm |
| 2026-06-07 | 344.0 | 319.2 | 131.2 mm | 78.1 mm |
| 2026-06-08 | 349.2 | 325.8 | 131.2 mm | 78.4 mm |
| 2026-06-09 | 356.2 | 333.1 | 131.7 mm | 78.6 mm |
| 2026-06-10 | 365.3 | 340.6 | 131.7 mm | 78.7 mm |
| 2026-06-11 | 378.1 | 347.7 | 131.7 mm | 78.7 mm |
| 2026-06-12 | 388.5 | 354.7 | 131.7 mm | 78.7 mm |
| 2026-06-13 | 397.5 | 362.1 | 131.7 mm | 78.8 mm |
| 2026-06-14 | 405.6 | 369.7 | 131.7 mm | 78.9 mm |
| 2026-06-15 | 413.9 | 376.7 | 131.7 mm | 79.0 mm |
| 2026-06-16 | 422.1 | 383.7 | 131.7 mm | 79.6 mm |
| 2026-06-17 | 429.9 | 391.0 | 131.7 mm | 80.0 mm |
| 2026-06-18 | 437.4 | 398.9 | 131.8 mm | 80.0 mm |
| 2026-06-19 | 444.6 | 406.6 | 131.8 mm | 80.1 mm |
| 2026-06-20 | 452.2 | 414.2 | 131.8 mm | 80.1 mm |
| 2026-06-21 | 460.0 | 421.9 | 131.8 mm | 80.1 mm |
| 2026-06-22 | 468.0 | 429.4 | 131.9 mm | 80.1 mm |
| 2026-06-23 | 476.0 | 437.0 | 131.9 mm | 80.1 mm |
| 2026-06-24 | 484.0 | 444.6 | 131.9 mm | 80.1 mm |
| 2026-06-25 | 491.7 | 452.8 | 131.9 mm | 80.2 mm |
| 2026-06-26 | 498.4 | 460.9 | 131.9 mm | 80.3 mm |
| 2026-06-27 | 504.9 | 469.3 | 132.1 mm | 80.4 mm |
| 2026-06-28 | 511.8 | 477.6 | 132.1 mm | 80.9 mm |
| 2026-06-29 | 519.8 | 485.9 | 132.1 mm | 81.2 mm |
| 2026-06-30 | 527.3 | 494.5 | 132.1 mm | 81.5 mm |
| 2026-07-01 | 533.6 | 503.0 | 132.1 mm | 81.5 mm |
| 2026-07-02 | 540.4 | 511.1 | 132.1 mm | 81.5 mm |
| 2026-07-03 | 548.0 | 519.5 | 132.1 mm | 81.6 mm |
| 2026-07-04 | 556.3 | 527.6 | 132.2 mm | 81.6 mm |
| 2026-07-05 | 564.6 | 535.6 | 132.2 mm | 81.6 mm |
| 2026-07-06 | 572.4 | 543.7 | 132.5 mm | 81.6 mm |
| 2026-07-07 | 578.1 | 552.2 | 132.6 mm | 81.6 mm |
| 2026-07-08 | 585.0 | 560.8 | 132.6 mm | 81.7 mm |
| 2026-07-09 | 592.8 | 569.5 | 132.6 mm | 81.7 mm |
| 2026-07-10 | 600.3 | 578.1 | 132.6 mm | 81.7 mm |
| 2026-07-11 | 608.1 | 586.7 | 132.6 mm | 81.8 mm |
| 2026-07-12 | 618.7 | 595.5 | 132.6 mm | 81.8 mm |
| 2026-07-13 | 631.2 | 604.4 | 132.7 mm | 81.8 mm |
| 2026-07-14 | 644.0 | 613.3 | 132.7 mm | 81.8 mm |
| 2026-07-15 | 656.1 | 622.1 | 132.7 mm | 81.8 mm |
| 2026-07-16 | 665.0 | 631.1 | 132.7 mm | 81.9 mm |
| 2026-07-17 | 672.4 | 640.0 | 132.7 mm | 81.9 mm |
| 2026-07-18 | 680.9 | 648.8 | 132.7 mm | 81.9 mm |
| 2026-07-19 | 689.2 | 657.7 | 132.7 mm | 81.9 mm |
| 2026-07-20 | 698.8 | 666.6 | 132.8 mm | 82.0 mm |
| 2026-07-21 | 713.3 | 675.5 | 132.8 mm | 82.0 mm |
| 2026-07-22 | 724.4 | 684.5 | 133.0 mm | 82.0 mm |
| 2026-07-23 | 732.9 | 693.7 | 133.0 mm | 82.0 mm |
| 2026-07-24 | 742.2 | 702.8 | 133.0 mm | 82.0 mm |
| 2026-07-25 | 751.4 | 711.8 | 133.0 mm | 82.0 mm |
| 2026-07-26 | 760.8 | 720.9 | 133.0 mm | 82.1 mm |
| 2026-07-27 | 769.6 | 729.8 | 133.0 mm | 82.1 mm |
| 2026-07-28 | 778.7 | 738.7 | 133.0 mm | 82.1 mm |
| 2026-07-29 | 787.3 | 747.4 | 133.0 mm | 82.1 mm |
| 2026-07-30 | 796.1 | 756.4 | 133.0 mm | 82.1 mm |
| 2026-07-31 | 805.1 | 765.4 | 133.0 mm | 82.2 mm |
| 2026-08-01 | 814.8 | 774.6 | 133.0 mm | 82.2 mm |
| 2026-08-02 | 825.0 | 783.8 | 133.0 mm | 82.2 mm |
| 2026-08-03 | 834.5 | 792.7 | 133.0 mm | 82.2 mm |
| 2026-08-04 | 843.1 | 801.4 | 133.0 mm | 82.3 mm |
| 2026-08-05 | 852.2 | 810.1 | 133.0 mm | 82.3 mm |
| 2026-08-06 | 861.9 | 818.9 | 133.0 mm | 82.4 mm |
| 2026-08-07 | 871.4 | 827.6 | 133.0 mm | 82.5 mm |
| 2026-08-08 | 880.7 | 836.5 | 133.0 mm | 82.5 mm |
| 2026-08-09 | 890.7 | 845.8 | 133.0 mm | 82.5 mm |
| 2026-08-10 | 899.4 | 855.0 | 133.0 mm | 82.5 mm |
| 2026-08-11 | 908.5 | 864.1 | 133.0 mm | 82.5 mm |
| 2026-08-12 | 916.9 | 873.3 | 133.0 mm | 82.5 mm |
| 2026-08-13 | 925.1 | 883.0 | 133.1 mm | 82.6 mm |
| 2026-08-14 | 932.8 | 892.6 | 133.3 mm | 82.6 mm |
| 2026-08-15 | 941.1 | 902.3 | 133.4 mm | 82.7 mm |
| 2026-08-16 | 950.0 | 911.8 | 133.4 mm | 82.7 mm |
| 2026-08-17 | 958.9 | 920.7 | 133.4 mm | 82.7 mm |
| 2026-08-18 | 967.9 | 929.3 | 133.4 mm | 82.7 mm |
| 2026-08-19 | 977.2 | 937.9 | 133.4 mm | 82.9 mm |
| 2026-08-20 | 985.9 | 946.4 | 133.5 mm | 83.3 mm |
| 2026-08-21 | 994.7 | 955.1 | 133.5 mm | 83.3 mm |
| 2026-08-22 | 1003.7 | 964.1 | 133.5 mm | 83.3 mm |
| 2026-08-23 | 1014.1 | 973.0 | 133.5 mm | 83.3 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
- 92 GDDvs 94 GDD average
- Total rainfall
- 2.1 mmvs 0.4 mm average
No unusually hot or wet period stands out in the short-range forecast.
Sun8/30
27°Cavg 26°C
13°Cavg 12°C
+9 GDD
0.0 mm
Mon8/31
24°Cavg 26°C
12°Cavg 12°C
+7 GDD
0.0 mm
Tue9/1
22°Cavg 27°C
14°Cavg 12°C
+7 GDD
0.0 mm
Wed9/2
24°Cavg 27°C
11°Cavg 12°C
+7 GDD
0.0 mm
Thu9/3
24°Cavg 27°C
12°Cavg 12°C
+8 GDD
0.0 mm
Fri9/4
26°Cavg 26°C
15°Cavg 12°C
+9 GDD
0.0 mm
Sat9/5
24°Cavg 27°C
13°Cavg 12°C
+8 GDD
0.0 mm
Sun9/6
29°Cavg 28°C
13°Cavg 12°C
+12 GDD
0.0 mm
Mon9/7
26°Cavg 28°C
19°Cavg 12°C
+12 GDD
0.2 mm
Tue9/8
25°Cavg 26°C
19°Cavg 12°C
+13 GDD
1.8 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 Santa Cruz Mountains model uses a April 1–October 31 growing season, base 10°C GDD, and an operational hot-day marker of 32°C.
- Vintners' Association of the Santa Cruz Mountains: appellation varietal breakdown (variety context; no harvest dates)
- WMO climate normals guidance
The historical series uses 1 ERA5 location, 15 temperature stations, and 13 rain stations. Interpretation confidence: high. Geometry confidence: reviewed-approximate. Rules: santa-cruz-mountains-catalog-v1-2026-07.