TODAY NOV22
TEMPERATURE28
HUMIDITY88
PRESSURE102440
WIND COND.
  • 5033Fri
  • 5942Sat
  • 6030Sun
  • 4226Mon
  • 4528Tue
daynightWeather update from Manhattan, Manhattan Municipal Airport at
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Weather Quick Facts

  • The highest monthly average temperature in Riley for July is 84.2 degrees
  • The lowest monthly average temperature in Riley for January is 30.5 degrees
  • The most monthly precipitation in Riley occurs in May with 6.6 inches
  • The air quality index in Riley is 24% better than the national average
  • The pollution index in Riley is 97% better than the national average

Compare Riley, KS Weather

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      Riley 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
      January22°F42°F31°F0.4"
      February25°F45°F34°F0.6"
      March39°F60°F48°F2.4"
      April47°F69°F57°F3.1"
      May58°F79°F68°F6.6"
      June70°F92°F80°F5.9"
      July75°F96°F84°F2.9"
      August73°F96°F83°F2.5"
      September61°F83°F71°F2.7"
      October49°F71°F59°F2.8"
      November38°F59°F47°F0.8"
      December25°F43°F33°F1.4"

      Riley 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.
      IndexRileyKansasNational
      Air quality index324742
      Pollution index81,192989,1532,726,193

      Riley air quality

      MeasurementTotal
      Days measured95
      Days with good air quality94
      Days with moderate air quality1
      Days w/ poor A.Q. for sensitive groups
      Days with unhealthy air quality

      Air quality details

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

      Average monthly Riley temperature with heat index

      Riley monthly precipitation with daily maximum

      Riley monthly snow depth with daily maximum

      Riley monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Randolph, KS1683236.0%
      Ogden, KS1,4753236.0%
      Green, KS1453236.0%
      Fort Riley, KS8,7203236.0%
      Wakefield, KS9523236.0%
      Riley, KS1,2653236.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Carey, ID1,2652060.0%
      New Sarpy, LA1,2654510.0%
      Weidman, MI1,2653628.0%
      North Ballston Spa, NY1,2653726.0%
      Windsor, PA1,2654118.0%
      Riley, KS1,2653236.0%
      Source: The Riley, KS 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.