TODAY DEC22
TEMPERATURE31
HUMIDITY92
PRESSURE100948.24
WIND COND.210 13
  • 3120Mon
  • 3220Tue
  • 3413
  • 3119Thu
  • 3219Fri
daynightWeather update from Williston Basin International Airport at
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Weather Quick Facts

  • The highest monthly average temperature in Williston for July is 72.1 degrees
  • The lowest monthly average temperature in Williston for January is 14.2 degrees
  • The most monthly precipitation in Williston occurs in May with 2.7 inches
  • The air quality index in Williston is 19% better than the national average
  • The pollution index in Williston is 79% better than the national average

Compare Williston, ND Weather

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      Williston Average Temperature

      In the event that the weather data was unavailable for this city, estimates based upon nearby cities were used.
      MonthTemp. (min)Temp. (max)Temp. (avg)Precipitation
      January3°F27°F14°F0.5"
      February5°F29°F16°F0.6"
      March17°F45°F30°F0.7"
      April29°F60°F43°F1.1"
      May39°F70°F54°F2.7"
      June49°F80°F64°F2.6"
      July56°F89°F72°F2.1"
      August53°F87°F69°F1.5"
      September43°F77°F59°F1.6"
      October31°F60°F44°F1.2"
      November18°F43°F29°F0.7"
      December4°F27°F15°F0.8"

      Williston air quality index & pollution index

      In the event that the air quality/pollution data was unavailable for this city, estimates based upon nearby cities were used.
      IndexWillistonNorth DakotaNational
      Air quality index343542
      Pollution index563,5991,038,6652,726,193

      Williston air quality

      MeasurementTotal
      Days measured365
      Days with good air quality309
      Days with moderate air quality53
      Days w/ poor A.Q. for sensitive groups3
      Days with unhealthy air quality0

      Air quality details

      PollutantTotal
      Arsenic0.000%
      Benzene0.010%
      Carbon Tetrachloride0.001%
      Lead0.010%
      Mercury0.000%

      Average monthly Williston temperature with heat index

      Williston monthly precipitation with daily maximum

      Williston monthly snow depth with daily maximum

      Williston monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Springbrook, ND143432.0%
      Epping, ND793432.0%
      Williston, ND27,8123432.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Boisbriand, QC27,813n/a 
      Reisterstown, MD27,804468.0%
      Fridley, MN27,789468.0%
      Old Bridge, NJ27,8364118.0%
      Slidell, LA27,7824510.0%
      Williston, ND27,8123432.0%
      Source: The Williston, ND weather data displayed above is derived from the NOAA (National Oceanic and Atmospheric). Air quality and pollution data is derived from the EPA (United States Environmental Protection Agency). Air quality and pollution levels measured in a particular area may not be representative of the entire county.