Simpson, IL Weather Forecast & Monthly Average Temperatures

TEMPERATURE	42
HUMIDITY	55
PRESSURE	30.16
WIND COND.	3.4

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Simpson 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	28°F	46°F	36°F	5.4"
February	30°F	48°F	38°F	3.9"
March	40°F	60°F	49°F	7.8"
April	49°F	72°F	60°F	8.6"
May	58°F	79°F	67°F	6.3"
June	67°F	88°F	77°F	6.6"
July	69°F	88°F	78°F	6.4"
August	67°F	88°F	77°F	6.0"
September	59°F	82°F	70°F	5.5"
October	48°F	72°F	59°F	5.5"
November	38°F	59°F	47°F	5.8"
December	32°F	48°F	39°F	6.3"

Did you know?

The highest monthly average temperature in Simpson for July is 78 degrees.
The lowest monthly average temperature in Simpson for January is 36 degrees.
The most monthly precipitation in Simpson occurs in April with 8.6 inches.
The air quality index in Simpson is 27% better than the national average.
The pollution index in Simpson is 97% better than the national average.

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Simpson 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	Simpson	Illinois	National
Air quality index	36	41	50
Pollution index	125,359	3,347,295	5,066,862

Simpson air quality information

Measurement	Total
Days measured	365
Days with good air quality	298
Days with moderate air quality	67
Days w/ poor A.Q. for sensitive groups
Days with unhealthy air quality

Simpson air quality information

Pollutant	Total
Arsenic	0.000%
Benzene	0.003%
Carbon Tetrachloride	0.000%
Lead	0.000%
Mercury	0.000%

Average monthly Simpson temperature with heat index

Simpson monthly precipitation with daily maximum

Simpson monthly snow depth with daily maximum

Simpson monthly wind speed information

Nearby cities with good air quality

City, State	Population	Air Quality Index	National Avg.
Cypress, IL	232	36	28%
Karnak, IL	601	36	28%
Vienna, IL	1,431	36	28%
Belknap, IL	54	36	28%
Eddyville, IL	73	36	28%
Simpson, IL	80	36	28%

Cities with similar population

City, State	Population	Air Quality Index	National Avg.
Penermon, MO	80	36	28%
Epping, ND	80	41	18%
Altoona, WA	80	22	56%
Eagle River, MI	80	8	84%
Playas, NM	80	42	16%
Simpson, IL	80	36	28%

Source: The Simpson, 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.