Climate
Downey weather by month
Average highs, lows, rain and snow for every month, from 30 years of weather records.
Average temperatures
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
Best time to visit: June, July, August, when highs are mild and rain is lightest.
Month by month
| Month | High | Low | Rain | Wet days |
|---|---|---|---|---|
| January | 67°F | 47°F | 2.9 in | 6 |
| February | 67°F | 48°F | 3.0 in | 7 |
| March | 69°F | 51°F | 1.6 in | 6 |
| April | 71°F | 54°F | 0.60 in | 3 |
| May | 73°F | 58°F | 0.30 in | 2 |
| June | 76°F | 61°F | 0.10 in | 1 |
| July | 81°F | 65°F | 0.10 in | 1 |
| August | 83°F | 66°F | 0.00 in | 0 |
| September | 82°F | 64°F | 0.10 in | 1 |
| October | 78°F | 59°F | 0.50 in | 2 |
| November | 73°F | 52°F | 0.80 in | 3 |
| December | 67°F | 47°F | 2.1 in | 5 |
NOAA U.S. Climate Normals 1991–2020, Long Beach Daugherty Fld, Ca Us (8.9 mi away, 31 ft). Wet days: days with at least 0.01 in of precipitation.
Questions
What is the hottest month in Downey?
August, with an average high of 83°F and low of 66°F.
What is the coldest month in Downey?
December, with an average low of 47°F and high of 67°F.
When does it rain most in Downey?
February is the wettest month, averaging 3.0 in of precipitation; the year totals about 12.1 inches.
What is the best time to visit Downey?
For mild weather (highs between 65°F and 85°F) with the least rain, June, July, August.
Where do these numbers come from?
NOAA’s 1991–2020 U.S. Climate Normals for the Long Beach Daugherty Fld weather station, 8.9 miles from downtown: 30-year averages, not a forecast.