Vineyard climate — normals and trends
Vineyard (United States) has a hot-summer mediterranean climate (Csa) under the Köppen-Geiger classification. Its mean annual temperature is 16.1 °C and it receives 645 mm of precipitation per year.
These figures are normals computed over 86 complete calendar years, from 1940 to 2025, using ERA5 reanalysis data from the Copernicus programme.
The warmest month is July (23.9 °C on average) and the coldest is January (8.1 °C). Rainfall peaks in January.
Vineyard averages 11 frost days, 94 hot days (≥ 30 °C) and 59 rainy days per year.
Vineyard has warmed by +2.0 °C between 1940 and 2025, or +0.24 °C per decade. This trend is statistically significant.
The number of frost days there went from about 17 to 5 per year over the period.
The hottest day of the period reached 47.0 °C (on 6 September 2022) and the coldest -7.3 °C (on 22 December 1990).
Data from ERA5 reanalysis (Copernicus Climate Change Service), redistributed under a CC-BY 4.0 licence. Normals are recomputed whenever the archive is updated.
Climate normals · ERA5
VineyardCalifornia
- coords
- 38.46°, -121.35°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
16.1°C
Average daily high
23.1°C
Average daily low
10.0°C
Annual rainfall
645mm
Sunshine / day
10.7h
Mean relative humidity
62%
Average peak wind
13.2km/h
Seasonal range
15.8°C
Frost days (< 0 °C)
11 d/yr
Hot days (≥ 30 °C)
94 d/yr
Rainy days (≥ 1 mm)
59 d/yr
Annual snowfall
0.4 cm
Average feels-like high
22.2 °C
Average feels-like low
8.2 °C
Average peak gust
28.7 km/h
Tropical nights (≥ 20 °C)
5 d/yr
Solar radiation
18.8 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.0 °C
since 1940
+0.2 °C per decade · r² = 0.59 · p = < 0.001
Trend fitted by linear regression (ordinary least squares) on annual means. A trend is shown only when it is statistically significant (p < 0.05).
A climograph overlays rainfall (bars) and temperature (line): the standard reading in climatology, where you can see at a glance whether the warm season is also the dry one.
Records for the period
Hottest day
47.0 °C
6 September 2022
Coldest day
-7.3 °C
22 December 1990
Wettest day
140 mm
13 October 1962
Windiest day
53.9 km/h
4 January 2008
Strongest gust
111.2 km/h
4 January 2008
Hottest feels-like
47.2 °C
6 September 2022
Coldest feels-like
-11.8 °C
22 December 1990
Snowiest day
7.1 cm
16 February 1990
Sunniest day
14.1 h
6 July 2025
Normals computed over complete calendar years 1940–2025.
A specific year
Pick a year and see how it compares to normal — warmer, drier or more extreme than usual?
Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 15.5 °C | +2.3 °C | 30 mm | -90 mm |
| Feb | 17.1 °C | +1.2 °C | 187 mm | +78 mm |
| Mar | 18.4 °C | +0.2 °C | 106 mm | +5 mm |
| Apr | 23.3 °C | +1.5 °C | 18 mm | -31 mm |
| May | 29.2 °C | +3.0 °C | 1 mm | -22 mm |
| Jun | 31.1 °C | +0.6 °C | 0 mm | -5 mm |
| Jul | 31.6 °C | -1.4 °C | 0 mm | -0 mm |
| Aug | 34.0 °C | +1.7 °C | 0 mm | -1 mm |
| Sep | 31.1 °C | +0.8 °C | 1 mm | -7 mm |
| Oct | 24.0 °C | -1.0 °C | 48 mm | +10 mm |
| Nov | 17.9 °C | +0.2 °C | 130 mm | +49 mm |
| Dec | 12.8 °C | -0.4 °C | 142 mm | +32 mm |
The year's extremes
What was the weather like that day?
Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.
Frequently asked questions
What is the climate of Vineyard?
Vineyard has a hot-summer mediterranean climate (Köppen Csa). Over 1940-2025, the average annual temperature is 16.1 °C and it receives 645 mm of precipitation per year.
What is the hottest day ever recorded in Vineyard?
The hottest day measured in Vineyard between 1940 and 2025 was 6 September 2022, reaching 47.0 °C.
What is the coldest day in Vineyard?
The coldest day measured in Vineyard between 1940 and 2025 was 22 December 1990, at -7.3 °C.
Does it snow in Vineyard?
Almost never: Vineyard sees virtually no snow, with about 11 frost days per year.
Has the climate of Vineyard warmed?
Yes: Vineyard warmed by +2.0 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Vineyard?
The wettest day measured in Vineyard between 1940 and 2025 was 13 October 1962, with 140 mm of rain in 24 hours.
What was the windiest day in Vineyard?
The windiest day measured in Vineyard between 1940 and 2025 was 4 January 2008, with winds reaching 53.9 km/h.
What is the warmest month in Vineyard?
The warmest month in Vineyard is July (23.9 °C on average); the coldest is January (8.1 °C).
How much does it rain in Vineyard?
Vineyard receives on average 645 mm of precipitation per year, spread over about 59 rainy days.
Is it sunny in Vineyard?
Vineyard gets on average 10.7 hours of sunshine per day, roughly 3,905 hours per year over 1940-2025.
What is the biggest single-day snowfall in Vineyard?
The heaviest 24-hour snowfall measured in Vineyard between 1940 and 2025 was 16 February 1990, with 7.1 cm.
Are there tropical nights in Vineyard?
Yes: Vineyard has on average 5 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Vineyard?
In Vineyard, between 1940 and 2025, the highest apparent temperature reached 47.2 °C on 6 September 2022, and the lowest was -11.8 °C on 22 December 1990.
Compare Vineyard with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Vineyard