Stonegate climate — normals and trends
Stonegate (United States) has a hot-summer mediterranean climate (Csa) under the Köppen-Geiger classification. Its mean annual temperature is 16.6 °C and it receives 377 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 August (22.1 °C on average) and the coldest is January (11.7 °C). Rainfall peaks in February.
Stonegate averages 0 frost days, 26 hot days (≥ 30 °C) and 36 rainy days per year.
Stonegate has warmed by +1.7 °C between 1940 and 2025, or +0.19 °C per decade. This trend is statistically significant.
The hottest day of the period reached 41.0 °C (on 6 July 2018) and the coldest -2.7 °C (on 12 January 1949).
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
StonegateCalifornia
- coords
- 33.71°, -117.74°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
16.6°C
Average daily high
22.0°C
Average daily low
12.5°C
Annual rainfall
377mm
Sunshine / day
11.1h
Mean relative humidity
71%
Average peak wind
13.1km/h
Seasonal range
10.4°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
26 d/yr
Rainy days (≥ 1 mm)
36 d/yr
Annual snowfall
0.1 cm
Average feels-like high
22.0 °C
Average feels-like low
11.9 °C
Average peak gust
30.1 km/h
Tropical nights (≥ 20 °C)
11 d/yr
Solar radiation
20.1 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.7 °C
since 1940
+0.2 °C per decade · r² = 0.43 · 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
41.0 °C
6 July 2018
Coldest day
-2.7 °C
12 January 1949
Wettest day
98 mm
1 March 1983
Windiest day
40.9 km/h
30 November 1982
Strongest gust
87.1 km/h
1 March 1983
Hottest feels-like
43.3 °C
6 September 2020
Coldest feels-like
-6.8 °C
12 January 1949
Snowiest day
2.3 cm
29 January 1957
Sunniest day
14.0 h
11 June 1940
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 | 18.7 °C | +1.5 °C | 18 mm | -57 mm |
| Feb | 19.1 °C | +1.5 °C | 70 mm | -12 mm |
| Mar | 17.5 °C | -0.8 °C | 60 mm | -4 mm |
| Apr | 19.5 °C | -0.5 °C | 12 mm | -17 mm |
| May | 22.3 °C | +0.7 °C | 4 mm | -5 mm |
| Jun | 24.2 °C | 0.0 °C | 5 mm | +3 mm |
| Jul | 25.3 °C | -2.0 °C | 0 mm | -1 mm |
| Aug | 28.2 °C | +0.3 °C | 1 mm | -2 mm |
| Sep | 26.9 °C | -0.3 °C | 18 mm | +11 mm |
| Oct | 23.9 °C | -0.5 °C | 32 mm | +17 mm |
| Nov | 21.0 °C | +0.2 °C | 122 mm | +86 mm |
| Dec | 20.1 °C | +2.4 °C | 70 mm | +14 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 Stonegate?
Stonegate has a hot-summer mediterranean climate (Köppen Csa). Over 1940-2025, the average annual temperature is 16.6 °C and it receives 377 mm of precipitation per year.
What is the hottest day ever recorded in Stonegate?
The hottest day measured in Stonegate between 1940 and 2025 was 6 July 2018, reaching 41.0 °C.
What is the coldest day in Stonegate?
The coldest day measured in Stonegate between 1940 and 2025 was 12 January 1949, at -2.7 °C.
Does it snow in Stonegate?
Almost never: Stonegate sees virtually no snow, with about 0 frost days per year.
Has the climate of Stonegate warmed?
Yes: Stonegate warmed by +1.7 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Stonegate?
The wettest day measured in Stonegate between 1940 and 2025 was 1 March 1983, with 98 mm of rain in 24 hours.
What was the windiest day in Stonegate?
The windiest day measured in Stonegate between 1940 and 2025 was 30 November 1982, with winds reaching 40.9 km/h.
What is the warmest month in Stonegate?
The warmest month in Stonegate is August (22.1 °C on average); the coldest is January (11.7 °C).
How much does it rain in Stonegate?
Stonegate receives on average 377 mm of precipitation per year, spread over about 36 rainy days.
Is it sunny in Stonegate?
Stonegate gets on average 11.1 hours of sunshine per day, roughly 4,052 hours per year over 1940-2025.
What is the biggest single-day snowfall in Stonegate?
The heaviest 24-hour snowfall measured in Stonegate between 1940 and 2025 was 29 January 1957, with 2.3 cm.
Are there tropical nights in Stonegate?
Yes: Stonegate has on average 11 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Stonegate?
In Stonegate, between 1940 and 2025, the highest apparent temperature reached 43.3 °C on 6 September 2020, and the lowest was -6.8 °C on 12 January 1949.
Compare Stonegate with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Stonegate