San Jose, IL Weather - Forecast & Monthly Averages

TEMPERATURE	55
HUMIDITY	40
PRESSURE	102201.21
WIND COND.	300 14.8

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Weather Quick Facts

The highest monthly average temperature in San Jose for July is 75.7 degrees
The lowest monthly average temperature in San Jose for January is 27.8 degrees
The most monthly precipitation in San Jose occurs in September with 11.5 inches
The air quality index in San Jose is 3% better than the national average
The pollution index in San Jose is 53% better than the national average

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San Jose 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	2.6"
February	21°F	39°F	29°F	3.2"
March	34°F	55°F	43°F	4.1"
April	44°F	67°F	55°F	6.7"
May	54°F	76°F	65°F	4.6"
June	63°F	85°F	74°F	8.5"
July	66°F	87°F	76°F	11.2"
August	64°F	86°F	74°F	8.1"
September	56°F	80°F	67°F	11.5"
October	46°F	68°F	56°F	6.3"
November	34°F	54°F	43°F	5.1"
December	25°F	40°F	32°F	5.3"

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San Jose 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	San Jose	Illinois	National
Air quality index	41	41	42
Pollution index	1,277,890	3,148,694	2,726,193

San Jose air quality information

Measurement	Total
Days measured	365
Days with good air quality	285
Days with moderate air quality	78
Days w/ poor A.Q. for sensitive groups	2
Days with unhealthy air quality	0

San Jose air quality information

Pollutant	Total
Arsenic	0.010%
Benzene	0.050%
Carbon Tetrachloride	0.000%
Lead	0.010%
Mercury	0.002%

Average monthly San Jose temperature with heat index

San Jose monthly precipitation with daily maximum

San Jose monthly snow depth with daily maximum

San Jose monthly wind speed information

Nearby cities with good air quality

City	Population	Air Quality Index	National Avg.
New Holland, IL	257	40	20.0%
Lincoln, IL	13,742	40	20.0%
Easton, IL	235	40	20.0%
Mason City, IL	2,342	40	20.0%
Middletown, IL	212	40	20.0%
San Jose, IL	530	41	18.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Trafford, AL	530	53	6.0%
Fort Green Springs, FL	530	36	28.0%
Hammond, IL	530	44	12.0%
Manitou, KY	530	43	14.0%
Woodland, MI	530	36	28.0%
San Jose, IL	530	41	18.0%

Source: The San Jose, 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.