Saint George Climate by Month
Saint George, Utah, United States
Very hot summers and cold winters, with little rain.
Very hot summers and cold winters, with little rain: that's Saint George's climate in short. Afternoon highs range from 55°F (13°C) in December to 103°F (40°C) in July, and December nights average 30°F (-1°C). It gets only 7.4 in (189 mm) of rain a year. May and June are almost completely dry. The air is dry, averaging 32% relative humidity.
- Warmest month
- 103°F(40°C)
- Average high, July
- Coldest nights
- 30°F(-1°C)
- Average low, December
- Rain per year
- 7.4 in(189 mm)
- No clear rainy season
- Humidity
- 32%
- Sunniest: June
Best and worst months in Saint George
Best for weatherThe most comfortable weather comes in April, with highs around 78°F (26°C) and almost no rain.
Least pleasantJuly and August are the least pleasant; July is the hottest, with highs of 103°F (40°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)
Saint George weather by month
| Month | High | Low | Rain | Humidity | Sun |
|---|---|---|---|---|---|
| JanJanuary | 56°F(13°C) | 31°F(0°C) | 1.1 in(27 mm) | 52% | 2.7 |
| FebFebruary | 62°F(17°C) | 35°F(2°C) | 1.1 in(27 mm) | 43% | 3.6 |
| MarMarch | 70°F(21°C) | 41°F(5°C) | 0.9 in(23 mm) | 34% | 5.2 |
| AprAprilBest | 78°F(26°C) | 46°F(8°C) | 0.4 in(11 mm) | 26% | 6.3 |
| MayMay | 88°F(31°C) | 56°F(13°C) | 0.2 in(6 mm) | 23% | 7.5 |
| JunJune | 98°F(37°C) | 65°F(18°C) | 0.2 in(4 mm) | 16% | 8.2 |
| JulJuly | 103°F(40°C) | 71°F(22°C) | 0.5 in(12 mm) | 23% | 7.5 |
| AugAugust | 101°F(38°C) | 69°F(21°C) | 0.6 in(16 mm) | 24% | 6.6 |
| SepSeptember | 94°F(35°C) | 61°F(16°C) | 0.5 in(13 mm) | 25% | 5.9 |
| OctOctober | 81°F(27°C) | 48°F(9°C) | 0.7 in(18 mm) | 29% | 4.4 |
| NovNovember | 66°F(19°C) | 36°F(2°C) | 0.6 in(14 mm) | 39% | 3.1 |
| DecDecember | 55°F(13°C) | 30°F(-1°C) | 0.7 in(18 mm) | 55% | 2.5 |
1991–2020 averages. Sun is solar radiation in kWh/m² per day. Highlighted: the most comfortable months.
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