These are the official 30 year averages for the in-town St. George weather station, from NOAA's 1991 to 2020 U.S. Climate Normals.1,2 Normals describe a typical year, not a forecast, so check the National Weather Service forecast before you go.3
Average temperatures, rain and snow
| Month | Avg high | Avg low | Rain (in) | Snow (in) |
|---|---|---|---|---|
| January | 54.0°F | 28.4°F | 1.22 | 0.5 |
| February | 59.3°F | 32.4°F | 1.38 | 0.5 |
| March | 67.8°F | 39.0°F | 1.02 | 0.2 |
| April | 75.0°F | 45.7°F | 0.66 | 0.0 |
| May | 85.4°F | 55.5°F | 0.33 | 0.0 |
| June | 96.4°F | 64.5°F | 0.16 | 0.0 |
| July | 101.9°F | 71.7°F | 0.50 | 0.0 |
| August | 99.9°F | 70.3°F | 1.07 | 0.0 |
| September | 92.4°F | 60.7°F | 0.67 | 0.0 |
| October | 78.8°F | 47.3°F | 0.77 | 0.0 |
| November | 63.8°F | 34.7°F | 0.67 | 0.0 |
| December | 53.0°F | 27.9°F | 0.86 | 0.0 |
| Year | 9.31 | 1.2 |
Source: NOAA NCEI, station USC00427516. Rain is total precipitation.1,2
Month by month
January: 54°F high, 28°F low
Coolest month for highs after December, with lows below freezing. Book golf tee times for mid-morning or later.
February: 59°F high, 32°F low
The wettest month on average, at 1.38 inches. Afternoons warm toward 60°F.
March: 68°F high, 39°F low
Highs climb to about 68°F and the last of the rare snow is behind you.
April: 75°F high, 46°F low
Normal highs of 75°F and only about two thirds of an inch of rain. Comfortable hiking weather.
May: 85°F high, 56°F low
Highs pass 85°F. Hike early and carry extra water.
June: 96°F high, 65°F low
Highs average above 96°F and it is the driest month, at 0.16 inches. Plan outdoor time for early morning.
July: 102°F high, 72°F low
The hottest month, with normal highs near 102°F and lows near 72°F.
August: 100°F high, 70°F low
Still near 100°F on average, and rainfall jumps to about an inch. Check the forecast before hiking canyons.
September: 92°F high, 61°F low
Highs ease to about 92°F, with cooler nights near 61°F.
October: 79°F high, 47°F low
Highs near 79°F and lows near 47°F. Mild weather for hiking and events.
November: 64°F high, 35°F low
Highs near 64°F and lows near 35°F. Cool mornings and pleasant afternoons.
December: 53°F high, 28°F low
The coldest normal lows of the year, near 28°F, with highs near 53°F.
Plan around the weather
- Winter: winter golf guide and course ranking.
- Spring and fall: best hiking trails and Snow Canyon.
- Summer: Sand Hollow and things to do with kids.
- Any weekend: This Weekend in St. George and the events calendar.
- Planning a trip: where to stay, by area and trip type.