Turlock climate — normals and trends
Turlock (United States) has a hot-summer mediterranean climate (Csa) under the Köppen-Geiger classification. Its mean annual temperature is 17.3 °C and it receives 427 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 (26.5 °C on average) and the coldest is January (8.5 °C). Rainfall peaks in January.
Turlock averages 7 frost days, 112 hot days (≥ 30 °C) and 48 rainy days per year.
Turlock has warmed by +2.6 °C between 1940 and 2025, or +0.30 °C per decade. This trend is statistically significant.
The number of frost days there went from about 13 to 1 per year over the period.
The hottest day of the period reached 47.0 °C (on 6 September 2022) and the coldest -6.2 °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
TurlockCalifornia
- coords
- 37.49°, -120.85°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
17.3°C
Average daily high
24.1°C
Average daily low
11.2°C
Annual rainfall
427mm
Sunshine / day
10.9h
Mean relative humidity
58%
Average peak wind
13.5km/h
Seasonal range
18.0°C
Frost days (< 0 °C)
7 d/yr
Hot days (≥ 30 °C)
112 d/yr
Rainy days (≥ 1 mm)
48 d/yr
Annual snowfall
0.1 cm
Average feels-like high
23.3 °C
Average feels-like low
9.4 °C
Average peak gust
28.7 km/h
Tropical nights (≥ 20 °C)
23 d/yr
Solar radiation
19.4 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.6 °C
since 1940
+0.3 °C per decade · r² = 0.68 · 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
-6.2 °C
22 December 1990
Wettest day
67 mm
9 February 1962
Windiest day
42.7 km/h
20 January 2010
Strongest gust
94.3 km/h
4 January 2008
Hottest feels-like
49.9 °C
6 September 2022
Coldest feels-like
-10.9 °C
22 December 1990
Snowiest day
1.3 cm
27 December 1988
Sunniest day
14.0 h
11 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 | 16.6 °C | +2.8 °C | 13 mm | -67 mm |
| Feb | 18.4 °C | +2.0 °C | 93 mm | +18 mm |
| Mar | 20.0 °C | +1.1 °C | 78 mm | +7 mm |
| Apr | 25.9 °C | +3.3 °C | 13 mm | -22 mm |
| May | 31.5 °C | +4.1 °C | 1 mm | -14 mm |
| Jun | 35.5 °C | +3.6 °C | 0 mm | -3 mm |
| Jul | 36.7 °C | +1.8 °C | 0 mm | -1 mm |
| Aug | 37.4 °C | +3.6 °C | 1 mm | -1 mm |
| Sep | 33.8 °C | +2.7 °C | 3 mm | -2 mm |
| Oct | 25.7 °C | +0.1 °C | 32 mm | +11 mm |
| Nov | 19.3 °C | +0.8 °C | 98 mm | +50 mm |
| Dec | 14.1 °C | +0.1 °C | 98 mm | +27 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 Turlock?
Turlock has a hot-summer mediterranean climate (Köppen Csa). Over 1940-2025, the average annual temperature is 17.3 °C and it receives 427 mm of precipitation per year.
What is the hottest day ever recorded in Turlock?
The hottest day measured in Turlock between 1940 and 2025 was 6 September 2022, reaching 47.0 °C.
What is the coldest day in Turlock?
The coldest day measured in Turlock between 1940 and 2025 was 22 December 1990, at -6.2 °C.
Does it snow in Turlock?
Almost never: Turlock sees virtually no snow, with about 7 frost days per year.
Has the climate of Turlock warmed?
Yes: Turlock warmed by +2.6 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Turlock?
The wettest day measured in Turlock between 1940 and 2025 was 9 February 1962, with 67 mm of rain in 24 hours.
What was the windiest day in Turlock?
The windiest day measured in Turlock between 1940 and 2025 was 20 January 2010, with winds reaching 42.7 km/h.
What is the warmest month in Turlock?
The warmest month in Turlock is July (26.5 °C on average); the coldest is January (8.5 °C).
How much does it rain in Turlock?
Turlock receives on average 427 mm of precipitation per year, spread over about 48 rainy days.
Is it sunny in Turlock?
Turlock gets on average 10.9 hours of sunshine per day, roughly 3,979 hours per year over 1940-2025.
What is the biggest single-day snowfall in Turlock?
The heaviest 24-hour snowfall measured in Turlock between 1940 and 2025 was 27 December 1988, with 1.3 cm.
Are there tropical nights in Turlock?
Yes: Turlock has on average 23 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Turlock?
In Turlock, between 1940 and 2025, the highest apparent temperature reached 49.9 °C on 6 September 2022, and the lowest was -10.9 °C on 22 December 1990.
Compare Turlock with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Turlock