Climate averages 1991–2020
Saint George weather
in July.
A very hot, very dry month: the warmest and the 3rd driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
July is a very hot month in Saint George: daytime highs average 36.8°C and nights cool to about 25.9°C. By daytime temperature it is the warmest month of the year.
Expect about 9.7 mm of rain on roughly 2 days, which makes July a very dry month (the 3rd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 14 h 27 min on an average July day.
The nearest other city in this atlas is Henderson (172 km away). In July its highs average 39.3°C, 2.5°C warmer than Saint George, with 7.1 mm of rain.
Among the 498 cities listed in the United States, Saint George ranks joint 20th of 498 for the warmest July highs and 119th of 498 for the driest July (rainfall, lowest first). The mean July high of those 498 cities is 30.3°C; Saint George is 6.5°C warmer than that mean.
From July to August, average highs fall by 1.2°C to 35.6°C, and monthly rainfall rises from 9.7 mm to 14 mm.
The annual picture
July in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Saint George climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 10.4°C0.1°C | 0.1°C | 35 | 5.1 | 9.910 h |
| February | 12.8°C1.9°C | 1.9°C | 42 | 6.2 | 10.811 h |
| March | 17.6°C5.8°C | 5.8°C | 34 | 5.6 | 11.912 h |
| April | 22.3°C9.9°C | 9.9°C | 18 | 3.0 | 13.113 h |
| May | 28.1°C15.7°C | 15.7°C | 8.5 | 2.1 | 14.114 h |
| June | 34.2°C21.7°C | 21.7°C | 3.2 | 0.5 | 14.715 h |
| July, selected | 36.8°C25.9°C | 25.9°C | 9.7 | 2.1 | 14.414 h |
| August | 35.6°C24.8°C | 24.8°C | 14 | 2.8 | 13.614 h |
| September | 31.2°C19.2°C | 19.2°C | 20 | 2.7 | 12.512 h |
| October | 23.8°C11.8°C | 11.8°C | 25 | 3.4 | 11.311 h |
| November | 16.1°C4.9°C | 4.9°C | 22 | 3.2 | 10.210 h |
| December | 9.9°C0.2°C | 0.2°C | 28 | 4.8 | 9.710 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
July in nearby cities
- Henderson in JulyUnited States · 172 kmHigh 39.3°C · Low 26.5°C · 7.1 mm rain
- Las Vegas in JulyUnited States · 173 kmHigh 38.7°C · Low 26.1°C · 7.0 mm rain
- Paradise in JulyUnited States · 179 kmHigh 38.8°C · Low 26.0°C · 8.4 mm rain
- Spring Valley in JulyUnited States · 185 kmHigh 38.3°C · Low 24.9°C · 8.4 mm rain
- Enterprise in JulyUnited States · 191 kmHigh 37.6°C · Low 24.3°C · 8.4 mm rain
- Flagstaff in JulyUnited States · 274 kmHigh 27.9°C · Low 15.9°C · 115 mm rain
- Provo in JulyUnited States · 386 kmHigh 31.5°C · Low 19.0°C · 8.1 mm rain
- Orem in JulyUnited States · 391 kmHigh 31.5°C · Low 18.2°C · 8.1 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Saint George) is explained once on the Saint George year overview and on the Sources, method and limits page.