Redlands Climate by Month
Redlands, California, United States
Very hot summers and cool winters, with little rain, mostly from December to March.
Redlands has very hot summers and cool winters, with little rain, mostly from December to March. August is the warmest month, with highs around 96°F (35°C); December is the coolest at 67°F (19°C), and nights dip to 40°F (5°C). It gets only 11 in (290 mm) of rain a year. May to September are almost completely dry. The air is dry, averaging 43% relative humidity.
- Warmest month
- 96°F(35°C)
- Average high, August
- Coldest nights
- 40°F(5°C)
- Average low, December
- Rain per year
- 11 in(290 mm)
- Wettest: February
- Humidity
- 43%
- Sunniest: June
Best and worst months in Redlands
Best for weatherThe most comfortable weather comes in April and November, with highs around 75°F (24°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 (35°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)
Redlands weather by month
| Month | High | Low | Rain | Humidity | Sun |
|---|---|---|---|---|---|
| JanJanuary | 67°F(20°C) | 41°F(5°C) | 2.3 in(59 mm) | 42% | 3.0 |
| FebFebruary | 68°F(20°C) | 42°F(6°C) | 2.8 in(70 mm) | 47% | 3.5 |
| MarMarch | 71°F(22°C) | 45°F(7°C) | 1.8 in(45 mm) | 48% | 5.0 |
| AprAprilBest | 77°F(25°C) | 48°F(9°C) | 0.9 in(22 mm) | 47% | 6.0 |
| MayMay | 81°F(27°C) | 53°F(12°C) | 0.3 in(8 mm) | 45% | 6.7 |
| JunJune | 88°F(31°C) | 57°F(14°C) | 0.1 in(2 mm) | 44% | 7.3 |
| JulJuly | 94°F(35°C) | 62°F(17°C) | 0.1 in(3 mm) | 43% | 7.0 |
| AugAugust | 96°F(35°C) | 63°F(17°C) | 0.1 in(3 mm) | 38% | 6.7 |
| SepSeptember | 92°F(33°C) | 60°F(15°C) | 0.2 in(6 mm) | 39% | 5.7 |
| OctOctober | 83°F(28°C) | 53°F(11°C) | 0.5 in(12 mm) | 39% | 4.4 |
| NovNovemberBest | 74°F(23°C) | 45°F(7°C) | 0.7 in(17 mm) | 40% | 3.4 |
| DecDecember | 67°F(19°C) | 40°F(5°C) | 1.7 in(43 mm) | 43% | 2.8 |
1991–2020 averages. Sun is solar radiation in kWh/m² per day. Highlighted: the most comfortable months.
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