Yucaipa climate — normals and trends
Yucaipa (United States) has a hot-summer mediterranean climate (Csa) under the Köppen-Geiger classification. Its mean annual temperature is 14.8 °C and it receives 363 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 (23.8 °C on average) and the coldest is January (7.5 °C). Rainfall peaks in February.
Yucaipa averages 17 frost days, 59 hot days (≥ 30 °C) and 47 rainy days per year.
Yucaipa has warmed by +2.5 °C between 1940 and 2025, or +0.29 °C per decade. This trend is statistically significant.
The number of frost days there went from about 29 to 5 per year over the period.
The hottest day of the period reached 41.6 °C (on 6 September 2020) and the coldest -11.1 °C (on 29 January 1979).
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
YucaipaCalifornia
- coords
- 34.03°, -117.04°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
14.8°C
Average daily high
21.2°C
Average daily low
9.4°C
Annual rainfall
363mm
Sunshine / day
11.3h
Mean relative humidity
51%
Average peak wind
11.4km/h
Seasonal range
16.3°C
Frost days (< 0 °C)
17 d/yr
Hot days (≥ 30 °C)
59 d/yr
Rainy days (≥ 1 mm)
47 d/yr
Annual snowfall
20.7 cm
Average feels-like high
19.7 °C
Average feels-like low
7.1 °C
Average peak gust
37.4 km/h
Tropical nights (≥ 20 °C)
18 d/yr
Solar radiation
20.8 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.5 °C
since 1940
+0.3 °C per decade · r² = 0.61 · 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
41.6 °C
6 September 2020
Coldest day
-11.1 °C
29 January 1979
Wettest day
85 mm
23 January 1943
Windiest day
29.5 km/h
30 November 1982
Strongest gust
110.9 km/h
30 November 1982
Hottest feels-like
41.0 °C
6 July 2018
Coldest feels-like
-15.8 °C
12 January 1949
Snowiest day
30.2 cm
31 January 1979
Sunniest day
14.0 h
16 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 | 14.6 °C | +1.3 °C | 14 mm | -50 mm |
| Feb | 17.6 °C | +3.6 °C | 75 mm | +7 mm |
| Mar | 15.4 °C | -0.1 °C | 81 mm | +24 mm |
| Apr | 19.1 °C | +0.5 °C | 21 mm | -8 mm |
| May | 23.9 °C | +1.6 °C | 14 mm | +3 mm |
| Jun | 29.0 °C | +1.8 °C | 8 mm | +5 mm |
| Jul | 30.7 °C | 0.0 °C | 3 mm | -8 mm |
| Aug | 32.4 °C | +2.1 °C | 9 mm | -5 mm |
| Sep | 27.5 °C | -0.7 °C | 30 mm | +20 mm |
| Oct | 24.1 °C | +1.0 °C | 25 mm | +10 mm |
| Nov | 19.6 °C | +2.0 °C | 98 mm | +67 mm |
| Dec | 18.8 °C | +4.9 °C | 66 mm | +15 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 Yucaipa?
Yucaipa has a hot-summer mediterranean climate (Köppen Csa). Over 1940-2025, the average annual temperature is 14.8 °C and it receives 363 mm of precipitation per year.
What is the hottest day ever recorded in Yucaipa?
The hottest day measured in Yucaipa between 1940 and 2025 was 6 September 2020, reaching 41.6 °C.
What is the coldest day in Yucaipa?
The coldest day measured in Yucaipa between 1940 and 2025 was 29 January 1979, at -11.1 °C.
Does it snow in Yucaipa?
Yes. Yucaipa gets on average 20.7 cm of snow per year and has around 17 frost days.
Has the climate of Yucaipa warmed?
Yes: Yucaipa warmed by +2.5 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Yucaipa?
The wettest day measured in Yucaipa between 1940 and 2025 was 23 January 1943, with 85 mm of rain in 24 hours.
What was the windiest day in Yucaipa?
The windiest day measured in Yucaipa between 1940 and 2025 was 30 November 1982, with winds reaching 29.5 km/h.
What is the warmest month in Yucaipa?
The warmest month in Yucaipa is July (23.8 °C on average); the coldest is January (7.5 °C).
How much does it rain in Yucaipa?
Yucaipa receives on average 363 mm of precipitation per year, spread over about 47 rainy days.
Is it sunny in Yucaipa?
Yucaipa gets on average 11.3 hours of sunshine per day, roughly 4,125 hours per year over 1940-2025.
What is the biggest single-day snowfall in Yucaipa?
The heaviest 24-hour snowfall measured in Yucaipa between 1940 and 2025 was 31 January 1979, with 30.2 cm.
Are there tropical nights in Yucaipa?
Yes: Yucaipa has on average 18 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Yucaipa?
In Yucaipa, between 1940 and 2025, the highest apparent temperature reached 41.0 °C on 6 July 2018, and the lowest was -15.8 °C on 12 January 1949.
Compare Yucaipa with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Yucaipa