Troy, IL Weather Forecast & Monthly Average Temperatures

TEMPERATURE	69
HUMIDITY	100
PRESSURE	29.98
WIND COND.

Troy Average Weather

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	23°F	42°F	32°F	5.6"
February	25°F	45°F	34°F	3.8"
March	37°F	59°F	47°F	7.1"
April	47°F	70°F	57°F	10.2"
May	56°F	77°F	66°F	8.9"
June	65°F	87°F	76°F	9.2"
July	68°F	89°F	78°F	8.0"
August	66°F	88°F	76°F	7.8"
September	58°F	82°F	69°F	8.4"
October	47°F	70°F	57°F	8.6"
November	36°F	57°F	46°F	6.9"
December	28°F	45°F	36°F	8.2"

Did you know?

The highest monthly average temperature in Troy for July is 78 degrees.
The lowest monthly average temperature in Troy for January is 32 degrees.
The most monthly precipitation in Troy occurs in April with 10.2 inches.
The air quality index in Troy is 20% worse than the national average.
The pollution index in Troy is 19% worse than the national average.

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Troy 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	Troy	Illinois	National
Air quality index	60	41	50
Pollution index	6,055,640	3,347,295	5,066,862

Troy air quality information

Measurement	Total
Days measured	365
Days with good air quality	99
Days with moderate air quality	231
Days w/ poor A.Q. for sensitive groups	33
Days with unhealthy air quality	2

Troy air quality information

Pollutant	Total
Arsenic	0.010%
Benzene	0.070%
Carbon Tetrachloride	0.040%
Lead	0.100%
Mercury	0.230%

Average monthly Troy temperature with heat index

Troy monthly precipitation with daily maximum

Troy monthly snow depth with daily maximum

Troy monthly wind speed information

Nearby cities with good air quality

City, State	Population	Air Quality Index	National Avg.
Alorton, IL	1,908	60	20%
Brooklyn, IL	740	60	20%
East Alton, IL	6,171	60	20%
Fairview Heights, IL	16,793	60	20%
Hamel, IL	1,015	60	20%
Troy, IL	10,041	60	20%

Cities with similar population

City, State	Population	Air Quality Index	National Avg.
Gages Lake, IL	10,041	35	30%
Bonham, TX	10,040	325	550%
Indianola, MS	10,047	37	26%
Waverly, IA	10,049	43	14%
Avon Park, FL	10,052	28	44%
Troy, IL	10,041	60	20%

Source: The Troy, 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.