TODAY JUN01
TEMPERATURE91
HUMIDITY
PRESSURE29.86
WIND COND.210 31.1
  • 9366Tue30%
  • 8763Wed20%
  • 8965Thu20%50%
  • 8562Fri40%30%
  • 8366Sat30%
daynightWeather update from Perry Municipal Airport at
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Jefferson 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
January12°F31°F21°F0.7"
February15°F35°F24°F0.6"
March29°F50°F38°F1.0"
April40°F64°F51°F1.2"
May50°F75°F62°F1.5"
June61°F84°F72°F1.9"
July63°F86°F74°F1.3"
August61°F83°F71°F2.2"
September53°F79°F65°F2.1"
October41°F67°F53°F1.6"
November30°F52°F39°F0.8"
December18°F37°F26°F0.9"

Did you know?

  • The highest monthly average temperature in Jefferson for July is 74 degrees.
  • The lowest monthly average temperature in Jefferson for January is 21 degrees.
  • The most monthly precipitation in Jefferson occurs in August with 2.2 inches.
  • The air quality index in Jefferson is 26% better than the national average.
  • The pollution index in Jefferson is 90% better than the national average.

Compare Jefferson, IA Weather To Other Cities

      vs

      Jefferson 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.
      IndexJeffersonIowaNational
      Air quality index373950
      Pollution index517,6911,643,8365,066,862

      Jefferson air quality information

      MeasurementTotal
      Days measured214
      Days with good air quality210
      Days with moderate air quality4
      Days w/ poor A.Q. for sensitive groups
      Days with unhealthy air quality

      Jefferson air quality information

      PollutantTotal
      Arsenic0.000%
      Benzene0.010%
      Carbon Tetrachloride0.001%
      Lead0.002%
      Mercury0.000%

      Average monthly Jefferson temperature with heat index

      Jefferson monthly precipitation with daily maximum

      Jefferson monthly snow depth with daily maximum

      Jefferson monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Bagley, IA3353726%
      Boxholm, IA2213726%
      Grand Junction, IA8383726%
      Ralston, IA783726%
      Bayard, IA4553726%
      Jefferson, IA4,2073726%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Jasper, FL4,2073628%
      Sparks, TX4,208512%
      Emerald Lakes, PA4,2083922%
      Riverdale, NJ4,206536%
      Monongahela, PA4,2085612%
      Jefferson, IA4,2073726%
      Source: The Jefferson, IA 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.