Whittier Climate by Month
Whittier, California, United States
Hot summers and mild winters, with most rain from December to March.
Whittier has hot summers and mild winters, with most rain from December to March. Afternoon highs range from 69°F (20°C) in December to 88°F (31°C) in August, and December nights average 45°F (7°C). It gets 15 in (379 mm) of rain a year, 77% of it from December to March. May to September are almost completely dry.
- Warmest month
- 88°F(31°C)
- Average high, August
- Coldest nights
- 45°F(7°C)
- Average low, December
- Rain per year
- 15 in(379 mm)
- Wettest: February
- Humidity
- 53%
- Sunniest: July
Best and worst months in Whittier
Best for weatherThe most comfortable weather comes in April, May and November, with highs around 75°F (24°C) and about 0.8 in (20 mm) of rain a month.
Least pleasantFebruary and August are the least pleasant; August is the hottest, with highs of 88°F (31°C).
Comfort combines how close the afternoon high is to 75°F (24°C) with how much rain falls and how humid it is. See where the weather is best in May.
Temperature and rain through the year
Highs and lows (°F)
Average highAverage low
Rain (in per month)
Whittier weather by month
| Month | High | Low | Rain | Humidity | Sun |
|---|---|---|---|---|---|
| JanJanuary | 69°F(21°C) | 46°F(8°C) | 3.2 in(81 mm) | 50% | 2.8 |
| FebFebruary | 69°F(21°C) | 46°F(8°C) | 3.6 in(91 mm) | 50% | 3.3 |
| MarMarch | 71°F(22°C) | 48°F(9°C) | 2.4 in(61 mm) | 58% | 4.8 |
| AprAprilBest | 74°F(24°C) | 50°F(10°C) | 1.1 in(27 mm) | 52% | 5.9 |
| MayMayBest | 76°F(25°C) | 55°F(13°C) | 0.3 in(7 mm) | 56% | 6.3 |
| JunJune | 80°F(27°C) | 58°F(15°C) | 0.1 in(2 mm) | 58% | 6.8 |
| JulJuly | 86°F(30°C) | 62°F(17°C) | 0.1 in(2 mm) | 56% | 6.8 |
| AugAugust | 88°F(31°C) | 63°F(17°C) | 0.0 in(1 mm) | 53% | 6.6 |
| SepSeptember | 86°F(30°C) | 61°F(16°C) | 0.2 in(4 mm) | 53% | 5.5 |
| OctOctober | 81°F(27°C) | 56°F(13°C) | 0.6 in(16 mm) | 51% | 4.1 |
| NovNovemberBest | 75°F(24°C) | 49°F(10°C) | 1.1 in(27 mm) | 48% | 3.2 |
| DecDecember | 69°F(20°C) | 45°F(7°C) | 2.4 in(60 mm) | 51% | 2.6 |
1991–2020 averages. Sun is solar radiation in kWh/m² per day. Highlighted: the most comfortable months.
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