TODAY FEB27
TEMPERATURE36
HUMIDITY41
PRESSURE29.72
WIND COND.140 7.6
  • 274Sat40%
  • 2612Sun
  • 4023Mon
  • 4325Tue
  • 4426Wed
daynightWeather update from Boulder Municipal Airport at

Key findings

  • The highest monthly average temperature in Jamestown for July is 75 degrees
  • The lowest monthly average temperature in Jamestown for December is 30 degrees
  • The most monthly precipitation in Jamestown occurs in November with 2.6 inches
  • The air quality index in Jamestown is 5% better than the national average
  • The pollution index in Jamestown is 2% better than the national average

Compare Jamestown, CO Weather

      vs
      How would you rate the weather in Jamestown?
      Write a review to give others more information about this area.
      How would you rate the air quality in Jamestown?
      Write a review to give others more information about this area.
      See all Jamestown poll results

      Jamestown 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
      January18°F48°F32°F1.2"
      February21°F50°F34°F1.5"
      March30°F62°F44°F1.6"
      April36°F66°F49°F0.2"
      May43°F73°F57°F2.4"
      June54°F89°F71°F1.1"
      July59°F92°F75°F2.1"
      August56°F90°F72°F1.1"
      September49°F82°F64°F0.2"
      October38°F69°F52°F2.1"
      November28°F58°F41°F2.6"
      December17°F46°F30°F0.7"

      Jamestown 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.
      IndexJamestownColoradoNational
      Air quality index473850
      Pollution index4,953,3802,034,6195,066,862

      Jamestown air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality227
      Days with moderate air quality133
      Days w/ poor A.Q. for sensitive groups5
      Days with unhealthy air quality0

      Jamestown air quality information

      PollutantTotal
      Arsenic0.040%
      Benzene0.050%
      Carbon Tetrachloride0.010%
      Lead0.100%
      Mercury0.070%

      Average monthly Jamestown temperature with heat index

      Jamestown monthly precipitation with daily maximum

      Jamestown monthly snow depth with daily maximum

      Jamestown monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Altona, CO386476%
      Gold Hill, CO148476%
      Pine Brook Hill, CO1,091476%
      Valmont, CO55476%
      Coal Creek town, CO308476%
      Jamestown, CO219476%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Wind Ridge, PA2193922%
      Pearl, IL2194118%
      Colp, IL2194314%
      Keller, WA2194314%
      Humbird, WI2193432%
      Jamestown, CO219476%
      Source: The Jamestown, CO 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.