TODAY DEC22
TEMPERATURE22
HUMIDITY88
PRESSURE
WIND COND.160 27.7
  • 3324Sun
  • 2920Mon
  • 3024Tue
  • 3429
  • 3732Thu
daynightWeather update from Mankato, Mankato Regional Airport at
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Weather Quick Facts

  • The highest monthly average temperature in St. Peter for July is 73.9 degrees
  • The lowest monthly average temperature in St. Peter for December is 16 degrees
  • The most monthly precipitation in St. Peter occurs in August with 6.9 inches
  • The air quality index in St. Peter is 9% worse than the national average
  • The pollution index in St. Peter is 69% better than the national average

Compare St. Peter, MN Weather

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      St. Peter 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
      January10°F25°F16°F3.4"
      February11°F28°F19°F3.1"
      March25°F44°F33°F2.2"
      April39°F59°F48°F6.8"
      May51°F71°F59°F4.3"
      June62°F83°F71°F3.2"
      July64°F85°F74°F4.7"
      August61°F80°F70°F6.9"
      September53°F76°F62°F5.7"
      October44°F64°F52°F5.9"
      November28°F46°F35°F2.9"
      December9°F24°F16°F0.2"

      St. Peter 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.
      IndexSt. PeterMinnesotaNational
      Air quality index463542
      Pollution index848,3301,854,5192,726,193

      St. Peter air quality

      MeasurementTotal
      Days measured365
      Days with good air quality214
      Days with moderate air quality148
      Days w/ poor A.Q. for sensitive groups2
      Days with unhealthy air quality1

      Air quality details

      PollutantTotal
      Arsenic0.001%
      Benzene0.030%
      Carbon Tetrachloride0.000%
      Lead0.003%
      Mercury0.001%

      Average monthly St. Peter temperature with heat index

      St. Peter monthly precipitation with daily maximum

      St. Peter monthly snow depth with daily maximum

      St. Peter monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Janesville, MN2,5023628.0%
      Eagle Lake, MN3,064468.0%
      North Mankato, MN13,903468.0%
      Cleveland, MN792468.0%
      Madison Lake, MN1,081468.0%
      St. Peter, MN11,934468.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Blackfoot, ID11,9362746.0%
      Union, MO11,931548.0%
      Dranesville, VA11,929476.0%
      Elon, NC11,9413138.0%
      Lake Los Angeles, CA11,9267244.0%
      St. Peter, MN11,934468.0%
      Source: The St. Peter, MN 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.