Redding climate — normals and trends
Redding (United States) has a hot-summer mediterranean climate (Csa) under the Köppen-Geiger classification. Its mean annual temperature is 16.2 °C and it receives 1,304 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 (28.0 °C on average) and the coldest is January (6.8 °C). Rainfall peaks in January.
Redding averages 10 frost days, 107 hot days (≥ 30 °C) and 84 rainy days per year.
Redding has warmed by +2.2 °C between 1940 and 2025, or +0.26 °C per decade. This trend is statistically significant.
The number of frost days there went from about 15 to 5 per year over the period.
The hottest day of the period reached 47.1 °C (on 8 August 1981) and the coldest -10.2 °C (on 9 December 1972).
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
ReddingCalifornia
- coords
- 40.59°, -122.39°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
16.2°C
Average daily high
22.7°C
Average daily low
10.4°C
Annual rainfall
1,304mm
Sunshine / day
10.3h
Mean relative humidity
54%
Average peak wind
11.2km/h
Seasonal range
21.2°C
Frost days (< 0 °C)
10 d/yr
Hot days (≥ 30 °C)
107 d/yr
Rainy days (≥ 1 mm)
84 d/yr
Annual snowfall
33.0 cm
Average feels-like high
21.2 °C
Average feels-like low
8.1 °C
Average peak gust
31.4 km/h
Tropical nights (≥ 20 °C)
34 d/yr
Solar radiation
17.8 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.2 °C
since 1940
+0.3 °C per decade · r² = 0.57 · 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
47.1 °C
8 August 1981
Coldest day
-10.2 °C
9 December 1972
Wettest day
133 mm
8 January 1995
Windiest day
38.9 km/h
12 October 1962
Strongest gust
107.3 km/h
4 January 2008
Hottest feels-like
48.7 °C
15 July 1972
Coldest feels-like
-15.6 °C
21 December 1990
Snowiest day
34.0 cm
23 December 1968
Sunniest day
14.7 h
25 June 1943
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 | 15.4 °C | +3.6 °C | 72 mm | -169 mm |
| Feb | 14.0 °C | -0.1 °C | 335 mm | +130 mm |
| Mar | 16.2 °C | -0.2 °C | 222 mm | +40 mm |
| Apr | 23.1 °C | +2.7 °C | 28 mm | -66 mm |
| May | 29.2 °C | +3.5 °C | 22 mm | -32 mm |
| Jun | 34.9 °C | +3.6 °C | 2 mm | -19 mm |
| Jul | 35.4 °C | -0.5 °C | 6 mm | +3 mm |
| Aug | 36.2 °C | +1.6 °C | 5 mm | -2 mm |
| Sep | 30.5 °C | -0.5 °C | 29 mm | +9 mm |
| Oct | 22.2 °C | -1.7 °C | 97 mm | +20 mm |
| Nov | 17.5 °C | +1.7 °C | 218 mm | +49 mm |
| Dec | 14.4 °C | +2.7 °C | 373 mm | +141 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 Redding?
Redding has a hot-summer mediterranean climate (Köppen Csa). Over 1940-2025, the average annual temperature is 16.2 °C and it receives 1,304 mm of precipitation per year.
What is the hottest day ever recorded in Redding?
The hottest day measured in Redding between 1940 and 2025 was 8 August 1981, reaching 47.1 °C.
What is the coldest day in Redding?
The coldest day measured in Redding between 1940 and 2025 was 9 December 1972, at -10.2 °C.
Does it snow in Redding?
Yes. Redding gets on average 33.0 cm of snow per year and has around 10 frost days.
Has the climate of Redding warmed?
Yes: Redding warmed by +2.2 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Redding?
The wettest day measured in Redding between 1940 and 2025 was 8 January 1995, with 133 mm of rain in 24 hours.
What was the windiest day in Redding?
The windiest day measured in Redding between 1940 and 2025 was 12 October 1962, with winds reaching 38.9 km/h.
What is the warmest month in Redding?
The warmest month in Redding is July (28.0 °C on average); the coldest is January (6.8 °C).
How much does it rain in Redding?
Redding receives on average 1,304 mm of precipitation per year, spread over about 84 rainy days.
Is it sunny in Redding?
Redding gets on average 10.3 hours of sunshine per day, roughly 3,760 hours per year over 1940-2025.
What is the biggest single-day snowfall in Redding?
The heaviest 24-hour snowfall measured in Redding between 1940 and 2025 was 23 December 1968, with 34.0 cm.
Are there tropical nights in Redding?
Yes: Redding has on average 34 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Redding?
In Redding, between 1940 and 2025, the highest apparent temperature reached 48.7 °C on 15 July 1972, and the lowest was -15.6 °C on 21 December 1990.
Compare Redding with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Redding