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Williston city, North Dakota

Official LSAD Designation: Williston city • Census GEOID: 3886220 • Williams County

Climate Normals & Weather Observations

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

Reference Weather Station: WILLISTON SLOULIN INTL AP, ND US (ID: USW00094014) • Located 1.2 miles from community center • Elevation: 579.7 m
Month Average High (°F) Average Low (°F) Mean Temp (°F) Precipitation (in)
January 22.1° 1.0° 11.6° 0.56"
February 26.7° 5.5° 16.1° 0.48"
March 40.1° 17.5° 28.8° 0.63"
April 55.6° 29.2° 42.4° 1.05"
May 67.4° 40.2° 53.8° 2.10"
June 76.7° 50.2° 63.5° 2.64"
July 84.5° 56.3° 70.4° 2.48"
August 83.9° 54.0° 69.0° 1.57"
September 72.6° 43.5° 58.0° 1.36"
October 55.9° 30.4° 43.2° 0.94"
November 38.4° 17.1° 27.8° 0.67"
December 26.1° 6.1° 16.1° 0.63"

Annual Temperature History

2010–2025, completed calendar years only.

NOAA station WILLISTON SLOULIN INTL AP, ND US (ID: USW00094014) • 1.2 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 WILLISTON SLOULIN INTL AP, ND 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. 25.0 34.0 43.0 52.0 61.0 2010 2014 2018 2021 2025 Year Annual mean temperature (°F) 2010: Annual mean 40.9°F 2011: Annual mean 41.3°F 2012: Annual mean 44.0°F 2013: Annual mean 39.7°F 2014: Annual mean 40.9°F 2015: Annual mean 44.6°F 2016: Annual mean 45.6°F 2017: Annual mean 43.5°F 2018: Annual mean 40.7°F 2010: Annual mean of daily highs 52.2°F 2011: Annual mean of daily highs 52.8°F 2012: Annual mean of daily highs 56.8°F 2013: Annual mean of daily highs 51.1°F 2014: Annual mean of daily highs 53.2°F 2015: Annual mean of daily highs 57.8°F 2016: Annual mean of daily highs 57.6°F 2017: Annual mean of daily highs 56.1°F 2018: Annual mean of daily highs 52.8°F 2010: Annual mean of daily lows 29.6°F 2011: Annual mean of daily lows 29.9°F 2012: Annual mean of daily lows 31.1°F 2013: Annual mean of daily lows 28.4°F 2014: Annual mean of daily lows 28.6°F 2015: Annual mean of daily lows 31.5°F 2016: Annual mean of daily lows 33.6°F 2017: Annual mean of daily lows 30.8°F 2018: Annual mean of daily lows 28.7°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 40.9 52.2 29.6
2011 41.3 52.8 29.9
2012 44.0 56.8 31.1
2013 39.7 51.1 28.4
2014 40.9 53.2 28.6
2015 44.6 57.8 31.5
2016 45.6 57.6 33.6
2017 43.5 56.1 30.8
2018 40.7 52.8 28.7
2019 Unavailable Unavailable Unavailable
2020 Unavailable Unavailable Unavailable
2021 Unavailable Unavailable Unavailable
2022 Unavailable Unavailable Unavailable
2023 Unavailable Unavailable Unavailable
2024 Unavailable Unavailable Unavailable
2025 Unavailable Unavailable Unavailable
Source: NOAA NCEI 1991–2020 U.S. Climate Normals, National Weather Service.