TODAY NOV21
TEMPERATURE
HUMIDITY100
PRESSURE30.1
WIND COND.330 5.8
  • 2922Wed
  • 3933
  • 4131Fri50%60%
  • 4326Sat30%
  • 3119Sun60%50%
daynightWeather update from Forest City Municipal Airport at

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Crystal Lake 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
January9°F25°F17°F0.7"
February11°F29°F20°F1.1"
March25°F44°F34°F2.2"
April36°F60°F47°F5.1"
May48°F71°F59°F5.0"
June58°F81°F69°F5.4"
July61°F84°F72°F4.2"
August59°F82°F70°F4.0"
September51°F76°F62°F4.3"
October38°F62°F49°F2.7"
November26°F47°F36°F1.5"
December13°F29°F21°F1.4"

Did you know?

  • The highest monthly average temperature in Crystal Lake for July is 72 degrees.
  • The lowest monthly average temperature in Crystal Lake for January is 17 degrees.
  • The most monthly precipitation in Crystal Lake occurs in June with 5.4 inches.
  • The air quality index in Crystal Lake is 63% better than the national average.
  • The pollution index in Crystal Lake is 84% better than the national average.

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Compare Crystal Lake, IA Weather To Other Cities

Crystal Lake 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.
IndexCrystal LakeIowaNational
Air quality index183950
Pollution index784,9241,643,8365,066,862

Crystal Lake air quality information

MeasurementTotal
Days measured334
Days with good air quality332
Days with moderate air quality2
Days w/ poor A.Q. for sensitive groups
Days with unhealthy air quality

Crystal Lake air quality information

PollutantTotal
Arsenic0.000%
Benzene0.010%
Carbon Tetrachloride0.001%
Lead0.002%
Mercury0.000%

Average monthly Crystal Lake temperature with heat index

Crystal Lake monthly precipitation with daily maximum

Crystal Lake monthly snow depth with daily maximum

Crystal Lake monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Britt, IA1,9191864%
Garner, IA3,0911864%
Lake Mills, IA2,0271864%
Sexton, IA381864%
Woden, IA2811864%
Crystal Lake, IA2021864%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Laurel Mountain, PA2023236%
Willow City, ND2023432%
Oswayo, PA2023334%
West Havre, MT2022648%
Laketown, UT202476%
Crystal Lake, IA2021864%
Source: The Crystal Lake, 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.