South Whittier Climate by Month
South Whittier, California, United States
Hot summers and mild winters, with little rain, mostly from December to March.
Hot summers and mild winters, with little rain, mostly from December to March: that's South Whittier's climate in short. Expect highs of 87°F (31°C) in August and 69°F (21°C) in December, with the coldest nights (December) near 45°F (7°C). It gets only 13 in (334 mm) of rain a year. May to September are almost completely dry.
- Warmest month
- 87°F(31°C)
- Average high, August
- Coldest nights
- 45°F(7°C)
- Average low, December
- Rain per year
- 13 in(334 mm)
- Wettest: February
- Humidity
- 54%
- Sunniest: June
Best and worst months in South Whittier
Best for weatherThe most comfortable weather comes in April, May and November, with highs around 76°F (24°C) and about 0.7 in (18 mm) of rain a month.
Least pleasantFebruary and August are the least pleasant; August is the hottest, with highs of 87°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 April.
Temperature and rain through the year
Highs and lows (°F)
Average highAverage low
Rain (in per month)
South Whittier weather by month
| Month | High | Low | Rain | Humidity | Sun |
|---|---|---|---|---|---|
| JanJanuary | 70°F(21°C) | 46°F(8°C) | 2.8 in(72 mm) | 49% | 2.8 |
| FebFebruary | 70°F(21°C) | 47°F(8°C) | 3.2 in(81 mm) | 54% | 3.3 |
| MarMarch | 72°F(22°C) | 49°F(10°C) | 2.0 in(52 mm) | 56% | 4.8 |
| AprAprilBest | 75°F(24°C) | 52°F(11°C) | 0.9 in(24 mm) | 55% | 5.8 |
| MayMayBest | 77°F(25°C) | 56°F(13°C) | 0.2 in(5 mm) | 59% | 6.2 |
| JunJune | 80°F(27°C) | 60°F(16°C) | 0.1 in(2 mm) | 60% | 6.7 |
| JulJuly | 85°F(29°C) | 63°F(17°C) | 0.1 in(2 mm) | 59% | 6.7 |
| AugAugust | 87°F(31°C) | 64°F(18°C) | 0.0 in(1 mm) | 53% | 6.5 |
| SepSeptember | 86°F(30°C) | 62°F(17°C) | 0.1 in(3 mm) | 52% | 5.4 |
| OctOctober | 81°F(27°C) | 57°F(14°C) | 0.6 in(14 mm) | 50% | 4.0 |
| NovNovemberBest | 75°F(24°C) | 50°F(10°C) | 0.9 in(24 mm) | 47% | 3.2 |
| DecDecember | 69°F(21°C) | 45°F(7°C) | 2.1 in(54 mm) | 50% | 2.5 |
1991–2020 averages. Sun is solar radiation in kWh/m² per day. Highlighted: the most comfortable months.
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