Ontario, WI Weather - Forecast & Monthly Averages

TEMPERATURE	21
HUMIDITY	71
PRESSURE	102440
WIND COND.

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Weather Quick Facts

The highest monthly average temperature in Ontario for July is 70.5 degrees
The lowest monthly average temperature in Ontario for January is 18.2 degrees
The most monthly precipitation in Ontario occurs in July with 6.2 inches
The air quality index in Ontario is 17% better than the national average
The pollution index in Ontario is 24% better than the national average

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Ontario 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	8°F	28°F	18°F	1.0"
February	9°F	30°F	20°F	0.6"
March	24°F	46°F	34°F	1.5"
April	34°F	59°F	46°F	3.7"
May	44°F	71°F	57°F	4.5"
June	54°F	80°F	67°F	5.6"
July	57°F	84°F	71°F	6.2"
August	56°F	81°F	68°F	4.8"
September	48°F	74°F	60°F	5.4"
October	37°F	61°F	48°F	3.4"
November	27°F	46°F	36°F	1.5"
December	14°F	32°F	23°F	2.3"

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Ontario 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	Ontario	Wisconsin	National
Air quality index	35	69	42
Pollution index	2,073,170	2,842,418	2,726,193

Ontario air quality

Measurement	Total
Days measured	365
Days with good air quality	310
Days with moderate air quality	55
Days w/ poor A.Q. for sensitive groups	0
Days with unhealthy air quality	0

Air quality details

Pollutant	Total
Arsenic	0.030%
Benzene	0.020%
Carbon Tetrachloride	0.001%
Lead	0.010%
Mercury	0.040%

Average monthly Ontario temperature with heat index

Ontario monthly precipitation with daily maximum

Ontario monthly snow depth with daily maximum

Ontario monthly wind speed information

Nearby cities with good air quality

City	Population	Air Quality Index	National Avg.
Melvina, WI	80	35	30.0%
Viroqua, WI	4,472	35	30.0%
Yuba, WI	30	35	30.0%
Cashton, WI	961	35	30.0%
Norwalk, WI	713	35	30.0%
Ontario, WI	477	35	30.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Verndale, MN	477	29	42.0%
Burlington Junction, MO	477	43	14.0%
Oak Grove Village, MO	477	54	8.0%
Morven, NC	477	40	20.0%
Hildreth, NE	477	19	62.0%
Ontario, WI	477	35	30.0%

Source: The Ontario, WI 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.