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Monticello city, Utah

Official LSAD Designation: Monticello city • Census GEOID: 4951580 • San Juan County

Climate Normals & Weather Observations

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

Reference Weather Station: MONTICELLO #2, UT US (ID: USC00425807) • Located 0.8 miles from community center • Elevation: 2,159.8 m
Month Average High (°F) Average Low (°F) Mean Temp (°F) Precipitation (in)
January 37.2° 16.8° 27.0° 1.14"
February 40.7° 20.0° 30.4° 1.48"
March 50.1° 26.3° 38.2° 1.31"
April 58.0° 31.1° 44.6° 1.10"
May 67.1° 39.3° 53.2° 0.89"
June 79.0° 48.4° 63.7° 0.50"
July 84.2° 55.4° 69.8° 1.62"
August 81.3° 53.6° 67.5° 1.93"
September 73.6° 46.2° 59.9° 1.67"
October 61.5° 36.0° 48.8° 1.49"
November 48.0° 26.1° 37.1° 1.17"
December 38.3° 17.0° 27.7° 1.39"

Annual Temperature History

2010–2025, completed calendar years only.

NOAA station MONTICELLO #2, UT US (ID: USC00425807) • 0.8 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 MONTICELLO #2, 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. 30.0 39.0 48.0 57.0 66.0 2010 2014 2018 2021 2025 Year Annual mean temperature (°F) 2012: Annual mean 48.4°F 2013: Annual mean 46.0°F 2014: Annual mean 48.0°F 2017: Annual mean 49.1°F 2019: Annual mean 45.6°F 2020: Annual mean 48.3°F 2021: Annual mean 48.3°F 2022: Annual mean 47.5°F 2023: Annual mean 46.3°F 2024: Annual mean 49.2°F 2025: Annual mean 49.7°F 2012: Annual mean of daily highs 61.4°F 2013: Annual mean of daily highs 58.3°F 2014: Annual mean of daily highs 60.6°F 2017: Annual mean of daily highs 61.9°F 2019: Annual mean of daily highs 57.8°F 2020: Annual mean of daily highs 61.2°F 2021: Annual mean of daily highs 60.7°F 2022: Annual mean of daily highs 59.8°F 2023: Annual mean of daily highs 58.3°F 2024: Annual mean of daily highs 61.6°F 2025: Annual mean of daily highs 62.5°F 2012: Annual mean of daily lows 35.4°F 2013: Annual mean of daily lows 33.7°F 2014: Annual mean of daily lows 35.3°F 2017: Annual mean of daily lows 36.3°F 2019: Annual mean of daily lows 33.3°F 2020: Annual mean of daily lows 35.5°F 2021: Annual mean of daily lows 35.9°F 2022: Annual mean of daily lows 35.1°F 2023: Annual mean of daily lows 34.3°F 2024: Annual mean of daily lows 36.7°F 2025: Annual mean of daily lows 37.0°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 Unavailable Unavailable Unavailable
2012 48.4 61.4 35.4
2013 46.0 58.3 33.7
2014 48.0 60.6 35.3
2015 Unavailable Unavailable Unavailable
2016 Unavailable Unavailable Unavailable
2017 49.1 61.9 36.3
2018 Unavailable Unavailable Unavailable
2019 45.6 57.8 33.3
2020 48.3 61.2 35.5
2021 48.3 60.7 35.9
2022 47.5 59.8 35.1
2023 46.3 58.3 34.3
2024 49.2 61.6 36.7
2025 49.7 62.5 37.0
Source: NOAA NCEI 1991–2020 U.S. Climate Normals, National Weather Service.