Crystal Lake, IA Weather - Forecast & Monthly Averages

TEMPERATURE	59
HUMIDITY	45
PRESSURE	101120
WIND COND.	310 35.3

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Weather Quick Facts

The highest monthly average temperature in Crystal Lake for July is 72.5 degrees
The lowest monthly average temperature in Crystal Lake for January is 16.7 degrees
The most monthly precipitation in Crystal Lake occurs in June with 5.4 inches
The air quality index in Crystal Lake is 64% better than the national average
The pollution index in Crystal Lake is 71% better than the national average

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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.
Month	Temp. _(min)	Temp. _(max)	Temp. _(avg)	Precipitation
January	9°F	25°F	17°F	0.7"
February	11°F	29°F	20°F	1.1"
March	25°F	44°F	34°F	2.2"
April	36°F	60°F	47°F	5.1"
May	48°F	71°F	59°F	5.0"
June	58°F	81°F	69°F	5.4"
July	61°F	84°F	72°F	4.2"
August	59°F	82°F	70°F	4.0"
September	51°F	76°F	62°F	4.3"
October	38°F	62°F	49°F	2.7"
November	26°F	47°F	36°F	1.5"
December	13°F	29°F	21°F	1.4"

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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.
Index	Crystal Lake	Iowa	National
Air quality index	15	39	42
Pollution index	784,924	1,154,535	2,726,193

Crystal Lake air quality information

Measurement	Total
Days measured	118
Days with good air quality	118
Days with moderate air quality	0
Days w/ poor A.Q. for sensitive groups	0
Days with unhealthy air quality	0

Crystal Lake air quality information

Pollutant	Total
Arsenic	0.000%
Benzene	0.010%
Carbon Tetrachloride	0.001%
Lead	0.002%
Mercury	0.000%

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	Population	Air Quality Index	National Avg.
Duncan, IA	102	15	70.0%
Klemme, IA	652	15	70.0%
Thompson, IA	496	15	70.0%
Titonka, IA	412	15	70.0%
Forest City, IA	4,117	15	70.0%
Crystal Lake, IA	264	15	70.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Industry, CA	264	72	44.0%
Bliss, ID	264	20	60.0%
Sweetwater, ID	264	29	42.0%
Fenton, LA	264	45	10.0%
Grand Cane, LA	264	39	22.0%
Crystal Lake, IA	264	15	70.0%

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.