Hot
Average highs reach 37°C, so days can feel very hot.
Weather Guide
St. George, Utah, United States Average Monthly Weather
Weather score67Good annual avg
Best months: September, June, May
Across the year, average daytime temperatures are around 25°C, sunshine averages 9.7h per day, and rainfall totals about 206mm.
Annual weather
Annual averages
Temp
25°C
Rain
206mm
Annual total
Sun
9.7h
Weather score
67
Good avg
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
Weather scoreWeather score
Trip feel
Drier
Rainfall averages 19mm, which is relatively low for holiday planning.
Bright
Sunshine averages 11h per day, so bright days are a strong part of the month.
Map
Weather map
Compare St. George, Utah, United States with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
August37°C average high
August is one of St. George's hottest months, so shade and slower afternoons matter.
Warmest monthsJune to September
This stretch sets the upper range for average daytime heat.
Rain
August19mm average rain
August is close to St. George's usual rainfall pattern, with little seasonal change across the year.
Driest monthsAll year
Rainfall stays comparatively low through the year.
Sun
August11 hours average sun
August is brighter than St. George's yearly average, though the strongest sunshine usually sits closer to the peak months.
Brightest monthsMay to July
This stretch has the strongest sunshine in the monthly averages.
Weather score
August82 weather score
August scores above St. George's yearly average, so the overall weather mix is stronger than most months.
Best weather monthsMay to June and September
These months have the strongest weather score in the monthly averages.
