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Jefferson City 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
January13°F35°F24°F0.6"
February18°F41°F28°F0.7"
March25°F52°F38°F0.5"
April31°F60°F44°F0.9"
May39°F69°F53°F1.8"
June47°F79°F63°F2.0"
July55°F91°F73°F0.7"
August52°F88°F69°F1.1"
September44°F77°F59°F1.1"
October34°F62°F46°F0.8"
November23°F47°F34°F0.8"
December12°F33°F22°F0.8"

Did you know?

  • The highest monthly average temperature in Jefferson City for July is 73 degrees.
  • The lowest monthly average temperature in Jefferson City for December is 22 degrees.
  • The most monthly precipitation in Jefferson City occurs in June with 2 inches.
  • The air quality index in Jefferson City is 30% better than the national average.
  • The pollution index in Jefferson City is 77% better than the national average.

Compare Jefferson City, MT Weather To Other Cities

Jefferson City 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.
IndexJefferson CityMontanaNational
Air quality index353450
Pollution index1,148,190685,9255,066,862

Jefferson City air quality information

MeasurementTotal
Days measured365
Days with good air quality315
Days with moderate air quality50
Days w/ poor A.Q. for sensitive groups
Days with unhealthy air quality

Jefferson City air quality information

PollutantTotal
Arsenic0.000%
Benzene0.020%
Carbon Tetrachloride0.002%
Lead0.010%
Mercury0.000%

Average monthly Jefferson City temperature with heat index

Jefferson City monthly precipitation with daily maximum

Jefferson City monthly snow depth with daily maximum

Jefferson City monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Boulder, MT1,1443530%
Helena, MT30,1023530%
Clancy, MT1,6123530%
Montana City, MT2,8783530%
East Helena, MT2,2863530%
Jefferson City, MT6863530%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Hymera, IN68650= 100
Clarkton, NC6863040%
Mullan, ID6861080%
Woodruff, WI6863628%
Lingle, WY6862060%
Jefferson City, MT6863530%
Source: The Jefferson City, MT 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.
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