Climate averages 1991–2020
Indio weather
in December.
A mild, fairly dry month: the coolest and the 10th driest of the year. Meets the pleasant-weather rule
Long-term climate patterns, not a forecast for a particular trip.
December is a mild month in Indio: daytime highs average 18.9°C and nights cool to about 9.1°C. By daytime temperature it is the coolest month of the year.
Expect about 25 mm of rain on roughly 3 days, which makes December a fairly dry month (the 10th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 9 h 58 min on an average December day.
The nearest other city in this atlas is Hemet (70 km away). In December its highs average 16.2°C, 2.7°C cooler than Indio, with 57 mm of rain.
Among the 498 cities listed in the United States, Indio ranks joint 42nd of 498 for the warmest December highs and joint 34th of 498 for the driest December (rainfall, lowest first). The mean December high of those 498 cities is 10.5°C; Indio is 8.3°C warmer than that mean.
From December to January, average highs rise by 0.8°C to 19.7°C, and monthly rainfall rises from 25 mm to 28 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
Indio climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 19.7°C9.6°C | 9.6°C | 28 | 3.6 | 10.210 h |
| February | 21.5°C10.7°C | 10.7°C | 34 | 4.1 | 11.011 h |
| March | 25.4°C12.9°C | 12.9°C | 17 | 2.9 | 12.012 h |
| April | 29.2°C15.2°C | 15.2°C | 6.8 | 1.4 | 13.013 h |
| May | 33.6°C18.6°C | 18.6°C | 2.8 | 0.9 | 13.914 h |
| June | 38.9°C22.9°C | 22.9°C | 0.7 | 0.2 | 14.414 h |
| July | 41.5°C27.2°C | 27.2°C | 7.2 | 1.8 | 14.214 h |
| August | 41.0°C27.8°C | 27.8°C | 8.6 | 2.2 | 13.413 h |
| September | 37.7°C24.7°C | 24.7°C | 7.1 | 1.8 | 12.412 h |
| October | 31.3°C18.9°C | 18.9°C | 8.0 | 1.2 | 11.411 h |
| November | 24.3°C13.3°C | 13.3°C | 8.6 | 1.5 | 10.410 h |
| December, selected | 18.9°C9.1°C | 9.1°C | 25 | 2.9 | 10.010 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
- Hemet in DecemberUnited States · 70 kmHigh 16.2°C · Low 3.9°C · 57 mm rain
- Menifee in DecemberUnited States · 86 kmHigh 16.4°C · Low 3.8°C · 61 mm rain
- Temecula in DecemberUnited States · 90 kmHigh 17.9°C · Low 5.3°C · 52 mm rain
- Perris in DecemberUnited States · 94 kmHigh 16.5°C · Low 4.0°C · 61 mm rain
- Murrieta in DecemberUnited States · 94 kmHigh 17.6°C · Low 4.8°C · 52 mm rain
- Redlands in DecemberUnited States · 97 kmHigh 16.4°C · Low 4.9°C · 55 mm rain
- Moreno Valley in DecemberUnited States · 97 kmHigh 16.3°C · Low 4.2°C · 55 mm rain
- Escondido in DecemberUnited States · 105 kmHigh 17.4°C · Low 5.7°C · 59 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 Indio) is explained once on the Indio year overview and on the Sources, method and limits page.