Climate averages 1991–2020
Compton weather
in January.
A mild, moderately wet month: the 11th warmest and the 11th driest of the year. Meets the pleasant-weather rule
Long-term climate patterns, not a forecast for a particular trip.
January is a mild month in Compton: daytime highs average 18.4°C and nights cool to about 6.8°C. By daytime temperature it is the 11th warmest of the 12 months.
Expect about 80 mm of rain on roughly 6 days, which makes January a moderately wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 10 h 10 min on an average January day.
The nearest other city in this atlas is Downey (9 km away). In January its highs average 18.5°C, about as warm as Compton, with 80 mm of rain.
Among the 498 cities listed in the United States, Compton ranks joint 57th of 498 for the warmest January highs and joint 269th of 498 for the driest January (rainfall, lowest first). The mean January high of those 498 cities is 9.5°C; Compton is 8.9°C warmer than that mean.
From January to February, average highs rise by 0.1°C to 18.5°C, and monthly rainfall rises from 80 mm to 86 mm.
The annual picture
January 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
Compton climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January, selected | 18.4°C6.8°C | 6.8°C | 80 | 5.5 | 10.210 h |
| February | 18.5°C7.7°C | 7.7°C | 86 | 5.9 | 10.911 h |
| March | 19.8°C9.5°C | 9.5°C | 55 | 5.2 | 12.012 h |
| April | 21.9°C11.0°C | 11.0°C | 19 | 2.5 | 13.013 h |
| May | 23.4°C13.3°C | 13.3°C | 8.2 | 1.5 | 13.914 h |
| June | 25.8°C15.2°C | 15.2°C | 2.0 | 0.3 | 14.414 h |
| July | 28.5°C17.4°C | 17.4°C | 1.8 | 0.4 | 14.214 h |
| August | 29.7°C18.0°C | 18.0°C | 0.3 | 0.1 | 13.413 h |
| September | 28.8°C17.4°C | 17.4°C | 3.2 | 0.5 | 12.412 h |
| October | 25.7°C14.4°C | 14.4°C | 15 | 2.0 | 11.411 h |
| November | 21.9°C10.0°C | 10.0°C | 19 | 2.2 | 10.410 h |
| December | 18.2°C6.5°C | 6.5°C | 52 | 4.6 | 9.910 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
January in nearby cities
- Downey in JanuaryUnited States · 9 kmHigh 18.5°C · Low 6.4°C · 80 mm rain
- Hawthorne in JanuaryUnited States · 12 kmHigh 18.4°C · Low 7.3°C · 80 mm rain
- Torrance in JanuaryUnited States · 13 kmHigh 17.7°C · Low 8.2°C · 68 mm rain
- Inglewood in JanuaryUnited States · 14 kmHigh 18.6°C · Low 7.0°C · 80 mm rain
- Long Beach in JanuaryUnited States · 15 kmHigh 17.8°C · Low 7.8°C · 68 mm rain
- East Los Angeles in JanuaryUnited States · 15 kmHigh 18.3°C · Low 6.2°C · 80 mm rain
- Los Angeles in JanuaryUnited States · 18 kmHigh 18.9°C · Low 6.8°C · 80 mm rain
- Whittier in JanuaryUnited States · 20 kmHigh 18.2°C · Low 6.0°C · 84 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 Compton) is explained once on the Compton year overview and on the Sources, method and limits page.
Los Angeles, East Los Angeles and Downey lie in the same rainfall cell, so their rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.