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St. George (UT) Weather and Climate: A Comprehensive Guide

St. George experiences great temperature shifts. The city's weather can transition from very hot days to cold weather. It experiences desert-like conditions in terms of precipitation, with almost no rain/snowfall. Let's now guide you through the climate details for a complete overview.

Average maximum day and minimum night temperature

The climate in St. George is known for significant temperature differences throughout the year, making the weather dynamic. Typically, average maximum daytime temperatures range from a very hot 39°C in July to a chilly 10°C in the coolest month, January.

Nights are cooler, with lows often dropping to around -1°C during the colder months. Check out our detailed temperature page for more information.

Temperature ranges by month

Precipitation and rainy days

St. George is known for its low rain/snowfall, with yearly precipitation amounts around 209 mm. The climate in St. George shows significant variation throughout the year. Expect moderate rainfall in December, with an average of 33 mm of precipitation over 6 rainy days.

In contrast, June offers drier and sunnier days, with around 2.1 mm of rainfall over a single rainy day. For more details, please visit our St. George Precipitation page.

The mean monthly precipitation over the year, including rain, hail and snow

Forecast for St. George (UT)

Sun   Dec 22
14°C | 1°C
N 2 m/s
partly cloudy and no rain

partly cloudy and no rain

Mon   Dec 23
16°C | 3°C
E 2 m/s
clear and no rain

clear and no rain

Tue   Dec 24
16°C | 2°C
NE 3 m/s
2 mm
broken clouds and small chance of rain

broken clouds and small chance of rain

The best time of year to visit St. George in the United States of America

During the months of April and October you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.

Other facts from our historical weather data:
  • Does St. George have a dry season?
    Yes, the months of March, April, May, June, July and November are very dry.
  • Which is the warmest month in St. George?
    July has an average maximum temperature of 39°C and is the warmest month of the year.
  • Which is the coldest month in St. George?
    The coldest month is January with an average maximum temperature of 10°C.
  • Which is the wettest month in St. George?
    December tops the wettest month list with 33 mm of rainfall.
  • Which is the driest month in St. George?
    June is the driest month with 2 mm of precipitation.

  • No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.