TODAY DEC15
TEMPERATURE14
HUMIDITY92
PRESSURE30
WIND COND.330 11.4
  • 2618Sun60%
  • 2913Mon30%
  • 3113Tue
  • 3322Wed
  • 4027Thu
daynightWeather update from Washington at
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Washington 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
January15°F32°F23°F1.0"
February17°F35°F25°F1.1"
March30°F51°F39°F2.4"
April41°F64°F52°F4.8"
May51°F74°F62°F4.6"
June62°F84°F73°F6.1"
July66°F86°F75°F4.7"
August64°F84°F73°F4.5"
September55°F78°F66°F3.3"
October43°F65°F53°F3.3"
November31°F51°F40°F1.9"
December19°F35°F27°F1.9"

Did you know?

  • The highest monthly average temperature in Washington for July is 75 degrees.
  • The lowest monthly average temperature in Washington for January is 23 degrees.
  • The most monthly precipitation in Washington occurs in June with 6.1 inches.
  • The air quality index in Washington is 16% better than the national average.
  • The pollution index in Washington is 89% better than the national average.

Compare Washington, IA Weather To Other Cities

Washington 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.
IndexWashingtonIowaNational
Air quality index423950
Pollution index577,8381,643,8365,066,862

Washington 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

Washington air quality information

PollutantTotal
Arsenic0.000%
Benzene0.010%
Carbon Tetrachloride0.001%
Lead0.090%
Mercury0.000%

Average monthly Washington temperature with heat index

Washington monthly precipitation with daily maximum

Washington monthly snow depth with daily maximum

Washington monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Brighton, IA5954216%
Frytown, IA844216%
Wellman, IA1,3654216%
Coppock, IA494216%
Kalona, IA2,4794216%
Washington, IA7,3684216%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
West Dundee, IL7,3696020%
Globe, AZ7,3697448%
Sioux Center, IA7,3704118%
Fort Pierce North, FL7,3652942%
Waite Park, MN7,3713334%
Washington, IA7,3684216%
Source: The Washington, 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.
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