TODAY JUN19
TEMPERATURE72
HUMIDITY100
PRESSURE29.92
WIND COND.250 4.7
  • 8265Wed50%70%
  • 7762Thu50%60%
  • 7560Fri60%40%
  • 8063Sat
  • 8264Sun
daynightWeather update from Ottumwa, Ottumwa Industrial Airport at

Chillicothe Average Weather

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
January-20°F62°F24°F0.7"
February-9°F63°F26°F1.4"
March3°F81°F40°F2.9"
April16°F88°F51°F4.9"
May24°F93°F61°F3.8"
June50°F94°F72°F5.6"
July51°F99°F74°F4.1"
August45°F95°F72°F6.0"
September32°F90°F64°F3.5"
October19°F92°F52°F3.2"
November7°F76°F41°F1.9"
December-10°F62°F26°F1.8"

Did you know?

  • The highest monthly average temperature in Chillicothe for July is 74 degrees.
  • The lowest monthly average temperature in Chillicothe for January is 24 degrees.
  • The most monthly precipitation in Chillicothe occurs in August with 6 inches.
  • The air quality index in Chillicothe is 15% better than the national average.
  • The pollution index in Chillicothe is 90% better than the national average.

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Compare Chillicothe, IA Weather To Other Cities

Chillicothe 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.
IndexChillicotheIowaNational
Air quality index423950
Pollution index464,3331,643,8365,066,862

Chillicothe air quality information

MeasurementTotal
Days measured365
Days with good air quality244
Days with moderate air quality120
Days w/ poor A.Q. for sensitive groups1
Days with unhealthy air quality

Chillicothe air quality information

PollutantTotal
Arsenic0.000%
Benzene0.010%
Carbon Tetrachloride0.001%
Lead0.320%
Mercury0.000%

Average monthly Chillicothe temperature with heat index

Chillicothe monthly precipitation with daily maximum

Chillicothe monthly snow depth with daily maximum

Chillicothe monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Ottumwa, IA24,7094020%
Agency, IA6194020%
Albia, IA3,7954118%
Beacon, IA5264118%
University Park, IA5584118%
Chillicothe, IA974216%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Cale, AR973138%
Hartsburg, MO973726%
Chelsea, WI973628%
Orason, TX974118%
Heathsville, VA973726%
Chillicothe, IA974216%
Source: The Chillicothe, 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.