TODAY AUG19
TEMPERATURE68
HUMIDITY93
PRESSURE29.93
WIND COND.
  • 8467Mon80%50%
  • 8163Tue20%
  • 8059Wed
  • 8263Thu
  • 8467Fri20%20%
daynightWeather update from St. Louis Downtown Airport at

Barnhart 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
January24°F43°F32°F1.8"
February26°F45°F34°F1.6"
March37°F59°F47°F3.7"
April47°F70°F58°F5.3"
May56°F78°F67°F4.8"
June65°F88°F76°F4.4"
July68°F90°F79°F3.9"
August66°F89°F77°F3.1"
September58°F82°F69°F4.2"
October47°F71°F58°F3.1"
November36°F58°F46°F2.8"
December29°F45°F36°F3.1"

Did you know?

  • The highest monthly average temperature in Barnhart for July is 79 degrees.
  • The lowest monthly average temperature in Barnhart for January is 32 degrees.
  • The most monthly precipitation in Barnhart occurs in April with 5.3 inches.
  • The air quality index in Barnhart is 20% worse than the national average.
  • The pollution index in Barnhart is 67% worse than the national average.

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Compare Barnhart, MO Weather To Other Cities

Barnhart 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.
IndexBarnhartMissouriNational
Air quality index609750
Pollution index8,473,0502,360,5665,066,862

Barnhart air quality information

MeasurementTotal
Days measured365
Days with good air quality99
Days with moderate air quality231
Days w/ poor A.Q. for sensitive groups33
Days with unhealthy air quality2

Barnhart air quality information

PollutantTotal
Arsenic0.020%
Benzene0.070%
Carbon Tetrachloride0.020%
Lead0.010%
Mercury0.010%

Average monthly Barnhart temperature with heat index

Barnhart monthly precipitation with daily maximum

Barnhart monthly snow depth with daily maximum

Barnhart monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Columbia, IL10,1936020%
Maeystown, IL1386020%
Arnold, MO21,1966020%
Cedar Hill Lakes, MO1986020%
Eureka, MO10,4976020%
Barnhart, MO6,1256020%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Union Gap, WA6,1254020%
Parkville, MO6,1245816%
Eldridge, IA6,1225510%
El Granada, CA6,132536%
Silver Lake, NC6,1173922%
Barnhart, MO6,1256020%
Source: The Barnhart, MO 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.