Freeport, IL Weather - Forecast & Monthly Averages

TEMPERATURE	46
HUMIDITY	88
PRESSURE	102980
WIND COND.	340 7.6

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Weather Quick Facts

The highest monthly average temperature in Freeport for July is 71.8 degrees
The lowest monthly average temperature in Freeport for January is 21.7 degrees
The most monthly precipitation in Freeport occurs in August with 7.3 inches
The air quality index in Freeport is equal to the national average
The pollution index in Freeport is 35% better than the national average

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Freeport 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	14°F	30°F	22°F	2.9"
February	15°F	31°F	23°F	2.3"
March	29°F	47°F	37°F	3.6"
April	38°F	61°F	48°F	5.4"
May	49°F	72°F	60°F	5.5"
June	58°F	80°F	69°F	6.3"
July	62°F	82°F	72°F	5.8"
August	60°F	81°F	70°F	7.3"
September	52°F	75°F	63°F	4.7"
October	42°F	62°F	51°F	5.8"
November	30°F	48°F	39°F	4.0"
December	19°F	33°F	26°F	3.4"

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Freeport 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	Freeport	Illinois	National
Air quality index	42	41	42
Pollution index	1,767,980	3,148,694	2,726,193

Freeport air quality

Measurement	Total
Days measured	341
Days with good air quality	240
Days with moderate air quality	100
Days w/ poor A.Q. for sensitive groups	1
Days with unhealthy air quality	0

Air quality details

Pollutant	Total
Arsenic	0.001%
Benzene	0.040%
Carbon Tetrachloride	0.010%
Lead	0.001%
Mercury	0.003%

Average monthly Freeport temperature with heat index

Freeport monthly precipitation with daily maximum

Freeport monthly snow depth with daily maximum

Freeport monthly wind speed information

Nearby cities with good air quality

City	Population	Air Quality Index	National Avg.
Winslow, IL	324	29	42.0%
German Valley, IL	565	42	16.0%
Dakota, IL	721	42	16.0%
Rock City, IL	354	42	16.0%
Pearl City, IL	831	42	16.0%
Freeport, IL	23,930	42	16.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Kalispell, MT	23,935	37	26.0%
Port St. John, FL	23,940	39	22.0%
Ponca City, OK	23,940	40	20.0%
Saint-Lin--Laurentides, QC	23,910	n/a
South Plainfield, NJ	23,961	51	2.0%
Freeport, IL	23,930	42	16.0%

Source: The Freeport, IL 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.