Quincy, IL Weather - Forecast & Monthly Averages

TEMPERATURE	56
HUMIDITY	77
PRESSURE	100780
WIND COND.	240 5.4

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Weather Quick Facts

The highest monthly average temperature in Quincy for July is 75.9 degrees
The lowest monthly average temperature in Quincy for January is 27.5 degrees
The most monthly precipitation in Quincy occurs in June with 6 inches
The air quality index in Quincy is 3% better than the national average
The pollution index in Quincy is 84% better than the national average

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Quincy 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	20°F	37°F	28°F	2.1"
February	21°F	38°F	29°F	2.0"
March	34°F	54°F	43°F	3.0"
April	44°F	66°F	55°F	4.3"
May	54°F	74°F	63°F	3.7"
June	64°F	84°F	74°F	6.0"
July	66°F	86°F	76°F	4.5"
August	66°F	86°F	75°F	4.2"
September	57°F	79°F	67°F	4.3"
October	45°F	64°F	54°F	3.9"
November	36°F	54°F	44°F	2.7"
December	23°F	38°F	29°F	2.4"

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Quincy 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	Quincy	Illinois	National
Air quality index	41	41	42
Pollution index	425,218	3,148,694	2,726,193

Quincy air quality

Measurement	Total
Days measured	241
Days with good air quality	208
Days with moderate air quality	33
Days w/ poor A.Q. for sensitive groups	0
Days with unhealthy air quality	0

Air quality details

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

Average monthly Quincy temperature with heat index

Quincy monthly precipitation with daily maximum

Quincy monthly snow depth with daily maximum

Quincy monthly wind speed information

Nearby cities with good air quality

City	Population	Air Quality Index	National Avg.
Coatsburg, IL	180	41	18.0%
Palmyra, MO	3,606	41	18.0%
Mendon, IL	1,092	41	18.0%
Canton, MO	2,455	41	18.0%
Payson, IL	1,398	41	18.0%
Quincy, IL	40,111	41	18.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
San Gabriel, CA	40,108	72	44.0%
Hollister, CA	40,100	37	26.0%
Cape Girardeau, MO	40,100	44	12.0%
Spanish Fork, UT	40,069	46	8.0%
Holyoke, MA	40,161	40	20.0%
Quincy, IL	40,111	41	18.0%

Source: The Quincy, 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.