Grand Tower, IL Weather - Forecast & Monthly Averages

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Key findings

The highest monthly average temperature in Grand Tower for August is 79.7 degrees
The lowest monthly average temperature in Grand Tower for February is 35.9 degrees
The most monthly precipitation in Grand Tower occurs in November with 11.1 inches
The air quality index in Grand Tower is 14% better than the national average
The pollution index in Grand Tower is 14% better than the national average

Compare Grand Tower, IL Weather

Grand Tower 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	30°F	44°F	36°F	7.5"
February	28°F	46°F	36°F	4.9"
March	38°F	61°F	49°F	4.2"
April	45°F	67°F	56°F	5.8"
May	55°F	79°F	67°F	4.4"
June	65°F	87°F	76°F	5.4"
July	66°F	87°F	76°F	3.6"
August	69°F	92°F	80°F	3.8"
September	60°F	85°F	71°F	5.0"
October	48°F	73°F	59°F	5.5"
November	38°F	59°F	48°F	11.1"
December	28°F	45°F	36°F	6.7"

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Grand Tower 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	Grand Tower	Illinois	National
Air quality index	43	41	50
Pollution index	2,331,220	3,148,694	2,726,193

Grand Tower air quality information

Measurement	Total
Days measured	344
Days with good air quality	269
Days with moderate air quality	74
Days w/ poor A.Q. for sensitive groups	1
Days with unhealthy air quality	0

Grand Tower air quality information

Pollutant	Total
Arsenic	0.010%
Benzene	0.030%
Carbon Tetrachloride	0.004%
Lead	0.002%
Mercury	0.260%

Average monthly Grand Tower temperature with heat index

Grand Tower monthly precipitation with daily maximum

Grand Tower monthly snow depth with daily maximum

Grand Tower monthly wind speed information

Nearby cities with good air quality

City	Population	Air Quality Index	National Avg.
Harrison, IL	965	43	14.0%
Altenburg, MO	508	43	14.0%
Old Appleton, MO	54	43	14.0%
Rockwood, IL	31	43	14.0%
Frohna, MO	223	43	14.0%
Grand Tower, IL	457	43	14.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Hammond, IL	457	44	12.0%
Rankin, IL	457	42	16.0%
Standish, ME	457	40	20.0%
Floodwood, MN	457	35	30.0%
Mineral Point, MO	457	54	8.0%
Grand Tower, IL	457	43	14.0%

Source: The Grand Tower, 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.