Colton Climate by Month
Colton, California, United States
Very hot summers and mild winters, with little rain, mostly from December to March.
The climate in Colton is one of very hot summers and mild winters, with little rain, mostly from December to March. Expect highs of 96°F (36°C) in August and 68°F (20°C) in December, with the coldest nights (December) near 42°F (5°C). It gets only 11 in (279 mm) of rain a year. May to September are almost completely dry. The air is dry, averaging 45% relative humidity.
- Warmest month
- 96°F(36°C)
- Average high, August
- Coldest nights
- 42°F(5°C)
- Average low, December
- Rain per year
- 11 in(279 mm)
- Wettest: February
- Humidity
- 45%
- Sunniest: June
Best and worst months in Colton
Best for weatherThe most comfortable weather comes in April and November, with highs around 77°F (25°C) and about 0.8 in (20 mm) of rain a month.
Least pleasantJuly and August are the least pleasant; August is the hottest, with highs of 96°F (36°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 November.
Temperature and rain through the year
Highs and lows (°F)
Average highAverage low
Rain (in per month)
Colton weather by month
| Month | High | Low | Rain | Humidity | Sun |
|---|---|---|---|---|---|
| JanJanuary | 69°F(20°C) | 43°F(6°C) | 2.2 in(57 mm) | 46% | 2.9 |
| FebFebruary | 69°F(21°C) | 44°F(7°C) | 2.6 in(67 mm) | 51% | 3.4 |
| MarMarch | 73°F(23°C) | 46°F(8°C) | 1.7 in(43 mm) | 52% | 5.0 |
| AprAprilBest | 78°F(25°C) | 49°F(10°C) | 0.8 in(21 mm) | 45% | 6.0 |
| MayMay | 82°F(28°C) | 54°F(12°C) | 0.3 in(7 mm) | 47% | 6.6 |
| JunJune | 89°F(31°C) | 59°F(15°C) | 0.1 in(2 mm) | 42% | 7.2 |
| JulJuly | 95°F(35°C) | 63°F(17°C) | 0.1 in(2 mm) | 44% | 7.0 |
| AugAugust | 96°F(36°C) | 64°F(18°C) | 0.1 in(3 mm) | 40% | 6.7 |
| SepSeptember | 93°F(34°C) | 61°F(16°C) | 0.2 in(5 mm) | 41% | 5.7 |
| OctOctober | 85°F(29°C) | 54°F(12°C) | 0.4 in(10 mm) | 41% | 4.3 |
| NovNovemberBest | 76°F(24°C) | 47°F(8°C) | 0.7 in(19 mm) | 38% | 3.3 |
| DecDecember | 68°F(20°C) | 42°F(5°C) | 1.7 in(43 mm) | 48% | 2.7 |
1991–2020 averages. Sun is solar radiation in kWh/m² per day. Highlighted: the most comfortable months.
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