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Irwindale, CA Climate
1991 to 2020 normals at San Gabriel Fire Dept, 7.9 mi from the center of Irwindale, elevation 363 ft.
Average weather by month
Select a month for daily normals and last year's weather
| Month | Range | High | Low | Precip. | Snow |
|---|---|---|---|---|---|
| January | 69° | 46° | 3.56 in | 0.0 in | |
| February | 68° | 47° | 4.22 in | 0.0 in | |
| March | 71° | 51° | 2.53 in | 0.0 in | |
| April | 74° | 53° | 0.61 in | 0.0 in | |
| May | 76° | 58° | 0.48 in | 0.0 in | |
| June | 81° | 62° | 0.13 in | 0.0 in | |
| July | 86° | 65° | 0.04 in | 0.0 in | |
| August | 88° | 66° | 0.00 in | 0.0 in | |
| September | 87° | 64° | 0.13 in | 0.0 in | |
| October | 81° | 57° | 0.61 in | 0.0 in | |
| November | 74° | 51° | 0.92 in | 0.0 in | |
| December | 68° | 45° | 2.44 in | 0.0 in | |
| Year | 77° | 15.67 in | 0.0 in |
Frequently asked questions
- What is the hottest month in Irwindale, CA?
- August is the warmest month, with a normal high of 88°F at San Gabriel Fire Dept.
- What is the coldest month in Irwindale, CA?
- December is the coldest month, with a normal low of 45°F.
- What is the wettest month in Irwindale, CA?
- February has the most precipitation on average, about 4.22 inches.