Climate averages 1991–2020
Redding weather
in December.
A cool, very wet month: the coolest and the wettest of the year.
Long-term climate patterns, not a forecast for a particular trip.
December is a cool month in Redding: daytime highs average 11.9°C and nights cool to about 3.5°C. By daytime temperature it is the coolest month of the year.
Expect about 253 mm of rain on roughly 13 days, which makes December a very wet month (the wettest month of the year). Daylight, from sunrise to sunset, lasts about 9 h 20 min on an average December day.
The nearest other city in this atlas is Chico (106 km away). In December its highs average 13.2°C, 1.3°C warmer than Redding, with 202 mm of rain.
Among the 498 cities listed in the United States, Redding ranks joint 234th of 498 for the warmest December highs and 498th of 498 for the driest December (rainfall, lowest first). The mean December high of those 498 cities is 10.5°C; Redding is 1.4°C warmer than that mean.
From December to January, average highs rise by 0.6°C to 12.5°C, and monthly rainfall falls from 253 mm to 236 mm.
The annual picture
December in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Redding climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 12.5°C3.3°C | 3.3°C | 236 | 12.5 | 9.610 h |
| February | 14.2°C4.0°C | 4.0°C | 218 | 11.6 | 10.611 h |
| March | 16.8°C5.5°C | 5.5°C | 189 | 12.3 | 11.912 h |
| April | 20.2°C7.7°C | 7.7°C | 94 | 9.0 | 13.313 h |
| May | 26.0°C12.1°C | 12.1°C | 58 | 6.2 | 14.414 h |
| June | 32.0°C16.7°C | 16.7°C | 24 | 2.8 | 15.015 h |
| July | 36.9°C20.9°C | 20.9°C | 2.3 | 0.4 | 14.815 h |
| August | 35.6°C20.1°C | 20.1°C | 4.9 | 0.6 | 13.814 h |
| September | 32.1°C16.7°C | 16.7°C | 13 | 1.7 | 12.513 h |
| October | 24.7°C11.7°C | 11.7°C | 70 | 4.6 | 11.211 h |
| November | 16.3°C6.5°C | 6.5°C | 142 | 8.8 | 10.010 h |
| December, selected | 11.9°C3.5°C | 3.5°C | 253 | 12.9 | 9.39 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
December in nearby cities
- Chico in DecemberUnited States · 106 kmHigh 13.2°C · Low 3.9°C · 202 mm rain
- Medford in DecemberUnited States · 198 kmHigh 8.7°C · Low 0.6°C · 158 mm rain
- Roseville in DecemberUnited States · 225 kmHigh 13.0°C · Low 3.7°C · 143 mm rain
- Citrus Heights in DecemberUnited States · 230 kmHigh 13.0°C · Low 3.9°C · 143 mm rain
- Sacramento in DecemberUnited States · 236 kmHigh 13.3°C · Low 4.5°C · 113 mm rain
- Folsom in DecemberUnited States · 236 kmHigh 13.1°C · Low 3.8°C · 143 mm rain
- Arden-Arcade in DecemberUnited States · 237 kmHigh 13.1°C · Low 4.4°C · 113 mm rain
- Santa Rosa, United States in DecemberUnited States · 240 kmHigh 14.0°C · Low 4.2°C · 150 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Redding) is explained once on the Redding year overview and on the Sources, method and limits page.