Winchester, CA Weather - Forecast & Monthly Averages

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TEMPERATURE	66
HUMIDITY	20
PRESSURE	102100
WIND COND.	219 1.6

Weather Quick Facts

The highest monthly average temperature in Winchester for August is 77.2 degrees
The lowest monthly average temperature in Winchester for December is 50.2 degrees
The most monthly precipitation in Winchester occurs in December with 2.9 inches
The air quality index in Winchester is 111% worse than the national average
The pollution index in Winchester is 736% worse than the national average

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Winchester 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	37°F	67°F	51°F	2.5"
February	38°F	68°F	52°F	1.6"
March	40°F	73°F	56°F	1.1"
April	44°F	77°F	59°F	0.8"
May	50°F	81°F	64°F	0.3"
June	55°F	90°F	72°F	0.0"
July	62°F	95°F	77°F	0.3"
August	61°F	95°F	77°F	0.7"
September	58°F	93°F	74°F	0.2"
October	50°F	83°F	65°F	0.3"
November	41°F	75°F	57°F	0.7"
December	36°F	66°F	50°F	2.9"

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Winchester 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	Winchester	California	National
Air quality index	89	55	42
Pollution index	22,790,900	10,473,190	2,726,193

Winchester air quality

Measurement	Total
Days measured	365
Days with good air quality	42
Days with moderate air quality	178
Days w/ poor A.Q. for sensitive groups	79
Days with unhealthy air quality	58

Air quality details

Pollutant	Total
Arsenic	0.060%
Benzene	0.190%
Carbon Tetrachloride	0.010%
Lead	0.220%
Mercury	0.230%

Average monthly Winchester temperature with heat index

Winchester monthly precipitation with daily maximum

Winchester monthly snow depth with daily maximum

Winchester monthly wind speed information

Nearby cities with good air quality

City	Population	Air Quality Index	National Avg.
Beaumont, CA	48,272	89	78.0%
Good Hope, CA	8,431	89	78.0%
Lake Elsinore, CA	64,201	89	78.0%
San Jacinto, CA	48,786	89	78.0%
Lakeview, CA	2,452	89	78.0%
Winchester, CA	2,957	89	78.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
New Britain, PA	2,957	51	2.0%
Citrus City, TX	2,957	42	16.0%
Greensboro, AL	2,956	35	30.0%
Valley View, PA	2,956	41	18.0%
Normandin, QC	2,956	n/a
Winchester, CA	2,957	89	78.0%

Source: The Winchester, CA 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.