Agua Caliente climate — normals and trends
Agua Caliente (United States) has a warm-summer mediterranean climate (Csb) under the Köppen-Geiger classification. Its mean annual temperature is 14.2 °C and it receives 603 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 (19.0 °C on average) and the coldest is January (8.6 °C). Rainfall peaks in January.
Agua Caliente averages 4 frost days, 20 hot days (≥ 30 °C) and 56 rainy days per year.
Agua Caliente has warmed by +1.4 °C between 1940 and 2025, or +0.16 °C per decade. This trend is statistically significant.
The number of frost days there went from about 6 to 2 per year over the period.
The hottest day of the period reached 40.3 °C (on 3 September 1950) and the coldest -4.4 °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
Agua CalienteCalifornia
- coords
- 38.32°, -122.49°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
14.2°C
Average daily high
20.2°C
Average daily low
9.2°C
Annual rainfall
603mm
Sunshine / day
10.4h
Mean relative humidity
70%
Average peak wind
13.8km/h
Seasonal range
10.4°C
Frost days (< 0 °C)
4 d/yr
Hot days (≥ 30 °C)
20 d/yr
Rainy days (≥ 1 mm)
56 d/yr
Annual snowfall
0.3 cm
Average feels-like high
19.3 °C
Average feels-like low
7.6 °C
Average peak gust
36.4 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
18.5 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.4 °C
since 1940
+0.2 °C per decade · r² = 0.42 · 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
40.3 °C
3 September 1950
Coldest day
-4.4 °C
22 December 1990
Wettest day
108 mm
24 October 2021
Windiest day
42.2 km/h
24 February 1958
Strongest gust
124.9 km/h
23 December 1955
Hottest feels-like
41.4 °C
13 July 1972
Coldest feels-like
-8.4 °C
22 December 1990
Snowiest day
4.0 cm
3 January 1974
Sunniest day
14.3 h
20 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 | 15.8 °C | +2.6 °C | 21 mm | -100 mm |
| Feb | 15.8 °C | +0.7 °C | 174 mm | +62 mm |
| Mar | 16.3 °C | -0.2 °C | 80 mm | -9 mm |
| Apr | 19.2 °C | +0.4 °C | 5 mm | -37 mm |
| May | 23.8 °C | +2.1 °C | 1 mm | -17 mm |
| Jun | 23.9 °C | -0.9 °C | 0 mm | -5 mm |
| Jul | 23.4 °C | -3.0 °C | 1 mm | +0 mm |
| Aug | 27.6 °C | +1.2 °C | 0 mm | -1 mm |
| Sep | 25.5 °C | -0.4 °C | 5 mm | +0 mm |
| Oct | 21.7 °C | -0.9 °C | 39 mm | +9 mm |
| Nov | 17.5 °C | +0.4 °C | 81 mm | +9 mm |
| Dec | 13.2 °C | -0.2 °C | 124 mm | +18 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 Agua Caliente?
Agua Caliente has a warm-summer mediterranean climate (Köppen Csb). Over 1940-2025, the average annual temperature is 14.2 °C and it receives 603 mm of precipitation per year.
What is the hottest day ever recorded in Agua Caliente?
The hottest day measured in Agua Caliente between 1940 and 2025 was 3 September 1950, reaching 40.3 °C.
What is the coldest day in Agua Caliente?
The coldest day measured in Agua Caliente between 1940 and 2025 was 22 December 1990, at -4.4 °C.
Does it snow in Agua Caliente?
Almost never: Agua Caliente sees virtually no snow, with about 4 frost days per year.
Has the climate of Agua Caliente warmed?
Yes: Agua Caliente warmed by +1.4 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Agua Caliente?
The wettest day measured in Agua Caliente between 1940 and 2025 was 24 October 2021, with 108 mm of rain in 24 hours.
What was the windiest day in Agua Caliente?
The windiest day measured in Agua Caliente between 1940 and 2025 was 24 February 1958, with winds reaching 42.2 km/h.
What is the warmest month in Agua Caliente?
The warmest month in Agua Caliente is July (19.0 °C on average); the coldest is January (8.6 °C).
How much does it rain in Agua Caliente?
Agua Caliente receives on average 603 mm of precipitation per year, spread over about 56 rainy days.
Is it sunny in Agua Caliente?
Agua Caliente gets on average 10.4 hours of sunshine per day, roughly 3,796 hours per year over 1940-2025.
What is the biggest single-day snowfall in Agua Caliente?
The heaviest 24-hour snowfall measured in Agua Caliente between 1940 and 2025 was 3 January 1974, with 4.0 cm.
Are there tropical nights in Agua Caliente?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Agua Caliente.
What was the most extreme apparent temperature in Agua Caliente?
In Agua Caliente, between 1940 and 2025, the highest apparent temperature reached 41.4 °C on 13 July 1972, and the lowest was -8.4 °C on 22 December 1990.
Compare Agua Caliente with another city
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Nearby cities
The climate around Agua Caliente