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St. George city, Utah

Official LSAD Designation: St. George city • Census GEOID: 4965330 • Washington County

Climate Normals & Weather Observations

30-year climate normals (1991–2020) and weather observations for St. George city.

Reference Weather Station: ST GEORGE, UT US (ID: USC00427516) • Located 3.3 miles from community center • Elevation: 870.8 m
Month Average High (°F) Average Low (°F) Mean Temp (°F) Precipitation (in)
January 54.0° 28.4° 41.2° 1.22"
February 59.3° 32.4° 45.8° 1.38"
March 67.8° 39.0° 53.4° 1.02"
April 75.0° 45.7° 60.4° 0.66"
May 85.4° 55.5° 70.5° 0.33"
June 96.4° 64.5° 80.4° 0.16"
July 101.9° 71.7° 86.8° 0.50"
August 99.9° 70.3° 85.1° 1.07"
September 92.4° 60.7° 76.5° 0.67"
October 78.8° 47.3° 63.0° 0.77"
November 63.8° 34.7° 49.2° 0.67"
December 53.0° 27.9° 40.4° 0.86"

Annual Temperature History

2010–2025, completed calendar years only.

NOAA station ST GEORGE, UT US (ID: USC00427516) • 3.3 miles from community center .

This is the same reference station used for monthly normals.

Annual mean Annual mean of daily highs Annual mean of daily lows
Annual temperature history at ST GEORGE, UT US Year is the horizontal axis. Annual mean temperature in degrees Fahrenheit is the vertical axis. Dots show recorded years; lines connect consecutive available years only. Missing years are gaps, with no interpolation. Optional dashed lines show annual mean of daily highs and lows. Exact values appear in the data table below. 43.0 53.3 63.5 73.8 84.0 2010 2014 2018 2021 2025 Year Annual mean temperature (°F) 2011: Annual mean 62.5°F 2012: Annual mean 65.0°F 2015: Annual mean 64.1°F 2016: Annual mean 64.3°F 2017: Annual mean 64.4°F 2018: Annual mean 64.2°F 2019: Annual mean 61.6°F 2020: Annual mean 63.8°F 2021: Annual mean 65.0°F 2022: Annual mean 64.2°F 2023: Annual mean 62.3°F 2024: Annual mean 65.2°F 2025: Annual mean 65.0°F 2011: Annual mean of daily highs 75.3°F 2012: Annual mean of daily highs 77.9°F 2015: Annual mean of daily highs 78.2°F 2016: Annual mean of daily highs 78.7°F 2017: Annual mean of daily highs 79.0°F 2018: Annual mean of daily highs 79.0°F 2019: Annual mean of daily highs 76.0°F 2020: Annual mean of daily highs 79.7°F 2021: Annual mean of daily highs 79.6°F 2022: Annual mean of daily highs 78.8°F 2023: Annual mean of daily highs 76.7°F 2024: Annual mean of daily highs 80.0°F 2025: Annual mean of daily highs 79.8°F 2011: Annual mean of daily lows 49.7°F 2012: Annual mean of daily lows 52.0°F 2015: Annual mean of daily lows 50.1°F 2016: Annual mean of daily lows 49.8°F 2017: Annual mean of daily lows 49.8°F 2018: Annual mean of daily lows 49.4°F 2019: Annual mean of daily lows 47.2°F 2020: Annual mean of daily lows 47.8°F 2021: Annual mean of daily lows 50.4°F 2022: Annual mean of daily lows 49.6°F 2023: Annual mean of daily lows 47.9°F 2024: Annual mean of daily lows 50.4°F 2025: Annual mean of daily lows 50.4°F

Source: NOAA NCEI Global Summary of the Year.

Annual temperature data table (°F)
Annual station temperatures, 2010–2025. Unavailable means no reported value.
Year Annual mean (°F) Annual mean of daily highs (°F) Annual mean of daily lows (°F)
2010 Unavailable Unavailable Unavailable
2011 62.5 75.3 49.7
2012 65.0 77.9 52.0
2013 Unavailable Unavailable Unavailable
2014 Unavailable Unavailable Unavailable
2015 64.1 78.2 50.1
2016 64.3 78.7 49.8
2017 64.4 79.0 49.8
2018 64.2 79.0 49.4
2019 61.6 76.0 47.2
2020 63.8 79.7 47.8
2021 65.0 79.6 50.4
2022 64.2 78.8 49.6
2023 62.3 76.7 47.9
2024 65.2 80.0 50.4
2025 65.0 79.8 50.4
Source: NOAA NCEI 1991–2020 U.S. Climate Normals, National Weather Service.