9 to 34°C
temperature
3570 hours
sunshine per day
147 mm
rain
298 days
dry
64 days
rain
3 days
snow

Climate of St. George

St. George has a semi-arid climate. It hardly rains here. The average annual temperature for St. George is 21° degrees and there is about 145 mm of rain in a year. It is dry for 271 days a year with an average humidity of 37% and an UV-index of 5.

Climate averages for the whole year

  • Day: the average daily temperature during the day is between 9°C and 34°C
  • Night:the average nighttime temperature is between 0°C and 23°C
  • Rain: it rains 64 days and there is a total of approximately 147 mm rainfall
  • Snow: it snows an average of 3 days per year
  • Sun hours: throughout the year there are 3570 sun hours
Maximum temperature: between 9°C and 34°C
Warmest month: 34°C in July
Coldest month: 9°C in January
Night temperature: between 0°C and 23°C
Dry days: 298 days
Days with rain: 64 days
Days with snow: 3 days
Total rain sum: 147 mm
Hours of sunshine: 3570 hours

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Temperature graph

This graph shows the average maximum temperature (red) and minimum temperature (blue) for St. George.

Precipitation graph

This graph shows the average amount of rainfall per month for St. George.

Climate table of St. George

In this climate table you can see at a glance what the average weather per month is for St. George. The data has been collected over a 30-year period, from which an average per month has been derived. From year to year the differences may be larger or smaller, but with this climate table you have a good idea of what the weather for St. George might be like in a given month.

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Day temp. (°C) 9 11 16 20 25 32 34 33 29 22 15 9
Night temp. (°C) 0 2 5 8 13 19 23 22 19 11 5 0
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Precipitation (mm) 20 21 17 8 4 3 15 14 8 10 8 19
Days with rain 6 6 8 6 4 1 8 5 4 5 4 7
Days with snow 1 1 - - - - - - - - - 1
Dry days 24 21 23 24 27 29 23 26 26 26 26 23
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Sun hours per day 7 9 9 11 12 12 12 12 10 8 7 7
Wind force (Bft) 2 2 2 3 3 2 2 2 2 2 2 2
UV-index 3 3 4 5 6 7 7 7 6 4 3 2

Best time to visit St. George

The best time to visit St. George in the state of Utah is from April through June and September and October. In this period you have a hot temperature and almost no precipitation. The highest average temperature in St. George is 34°C in July and the lowest is 9°C in January.

Climate of St. George by month

What is the average climate in a given month for St. George? Click on a month to see all monthly averages for sunshine, maximum and minimum temperatures, percent chance of rain per day, snowfall and number of rainy days.

St. George weather experiences

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