Ceres climate — normals and trends
Ceres (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 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 July (26.3 °C on average) and the coldest is January (8.8 °C). Rainfall peaks in January.
Ceres averages 6 frost days, 115 hot days (≥ 30 °C) and 47 rainy days per year.
Ceres has warmed by +2.6 °C between 1940 and 2025, or +0.31 °C per decade. This trend is statistically significant.
The number of frost days there went from about 11 to 1 per year over the period.
The hottest day of the period reached 48.2 °C (on 6 September 2022) and the coldest -6.3 °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
CeresCalifornia
- coords
- 37.59°, -120.96°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
17.3°C
Average daily high
24.2°C
Average daily low
11.0°C
Annual rainfall
377mm
Sunshine / day
10.9h
Mean relative humidity
57%
Average peak wind
13.5km/h
Seasonal range
17.5°C
Frost days (< 0 °C)
6 d/yr
Hot days (≥ 30 °C)
115 d/yr
Rainy days (≥ 1 mm)
47 d/yr
Annual snowfall
0.1 cm
Average feels-like high
23.4 °C
Average feels-like low
9.1 °C
Average peak gust
29.1 km/h
Tropical nights (≥ 20 °C)
15 d/yr
Solar radiation
19.5 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
48.2 °C
6 September 2022
Coldest day
-6.3 °C
22 December 1990
Wettest day
60 mm
9 February 1962
Windiest day
42.0 km/h
4 February 2024
Strongest gust
90.7 km/h
3 December 1974
Hottest feels-like
47.9 °C
6 September 2022
Coldest feels-like
-11.2 °C
22 December 1990
Snowiest day
1.0 cm
4 January 1974
Sunniest day
14.1 h
25 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 | 16.6 °C | +2.7 °C | 12 mm | -60 mm |
| Feb | 18.5 °C | +2.1 °C | 73 mm | +7 mm |
| Mar | 20.4 °C | +1.4 °C | 55 mm | -5 mm |
| Apr | 26.2 °C | +3.2 °C | 9 mm | -21 mm |
| May | 31.7 °C | +3.9 °C | 1 mm | -12 mm |
| Jun | 35.6 °C | +3.5 °C | 0 mm | -3 mm |
| Jul | 36.8 °C | +1.7 °C | 0 mm | -0 mm |
| Aug | 37.5 °C | +3.6 °C | 0 mm | -1 mm |
| Sep | 33.7 °C | +2.5 °C | 3 mm | -2 mm |
| Oct | 25.5 °C | -0.2 °C | 44 mm | +25 mm |
| Nov | 19.3 °C | +0.7 °C | 95 mm | +52 mm |
| Dec | 14.2 °C | +0.1 °C | 62 mm | -2 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 Ceres?
Ceres has a hot-summer mediterranean climate (Köppen Csa). Over 1940-2025, the average annual temperature is 17.3 °C and it receives 377 mm of precipitation per year.
What is the hottest day ever recorded in Ceres?
The hottest day measured in Ceres between 1940 and 2025 was 6 September 2022, reaching 48.2 °C.
What is the coldest day in Ceres?
The coldest day measured in Ceres between 1940 and 2025 was 22 December 1990, at -6.3 °C.
Does it snow in Ceres?
Almost never: Ceres sees virtually no snow, with about 6 frost days per year.
Has the climate of Ceres warmed?
Yes: Ceres warmed by +2.6 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Ceres?
The wettest day measured in Ceres between 1940 and 2025 was 9 February 1962, with 60 mm of rain in 24 hours.
What was the windiest day in Ceres?
The windiest day measured in Ceres between 1940 and 2025 was 4 February 2024, with winds reaching 42.0 km/h.
What is the warmest month in Ceres?
The warmest month in Ceres is July (26.3 °C on average); the coldest is January (8.8 °C).
How much does it rain in Ceres?
Ceres receives on average 377 mm of precipitation per year, spread over about 47 rainy days.
Is it sunny in Ceres?
Ceres 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 Ceres?
The heaviest 24-hour snowfall measured in Ceres between 1940 and 2025 was 4 January 1974, with 1.0 cm.
Are there tropical nights in Ceres?
Yes: Ceres has on average 15 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Ceres?
In Ceres, between 1940 and 2025, the highest apparent temperature reached 47.9 °C on 6 September 2022, and the lowest was -11.2 °C on 22 December 1990.
Compare Ceres with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Ceres