TODAY AUG21
TEMPERATURE64
HUMIDITY100
PRESSURE30.08
WIND COND.360 10.3
  • 7757Wed
  • 7865Thu30%
  • 8465Fri60%
  • 8869Sat
  • 8769Sun
daynightWeather update from Red Oak at

Henderson 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
January15°F33°F22°F2.3"
February20°F39°F28°F3.1"
March34°F58°F44°F4.4"
April42°F65°F52°F10.1"
May55°F77°F65°F14.1"
June64°F85°F73°F6.4"
July67°F90°F78°F4.8"
August67°F87°F76°F9.9"
September58°F82°F68°F6.9"
October46°F69°F56°F8.1"
November31°F54°F40°F1.8"
December16°F34°F24°F2.8"

Did you know?

  • The highest monthly average temperature in Henderson for July is 78 degrees.
  • The lowest monthly average temperature in Henderson for January is 22 degrees.
  • The most monthly precipitation in Henderson occurs in May with 14.1 inches.
  • The air quality index in Henderson is 3% better than the national average.
  • The pollution index in Henderson is 14% better than the national average.

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Compare Henderson, IA Weather To Other Cities

Henderson 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.
IndexHendersonIowaNational
Air quality index483950
Pollution index4,349,9301,643,8365,066,862

Henderson air quality information

MeasurementTotal
Days measured365
Days with good air quality197
Days with moderate air quality164
Days w/ poor A.Q. for sensitive groups4
Days with unhealthy air quality

Henderson air quality information

PollutantTotal
Arsenic0.210%
Benzene0.040%
Carbon Tetrachloride0.004%
Lead0.100%
Mercury0.160%

Average monthly Henderson temperature with heat index

Henderson monthly precipitation with daily maximum

Henderson monthly snow depth with daily maximum

Henderson monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Elliott, IA472484%
Macedonia, IA223484%
Red Oak, IA5,547484%
Emerson, IA525484%
Malvern, IA982484%
Henderson, IA147484%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Plainfield, OH1473628%
Central Pacolet, SC1474020%
Long Creek, OR1473334%
New Baltimore, PA1473236%
Glen Jean, WV147295490%
Henderson, IA147484%
Source: The Henderson, 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.