Upland, CA Weather - Forecast & Monthly Averages

TEMPERATURE	55
HUMIDITY	72
PRESSURE	101690
WIND COND.	240 14.8

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Weather Quick Facts

The highest monthly average temperature in Upland for August is 77.8 degrees
The lowest monthly average temperature in Upland for December is 54.5 degrees
The most monthly precipitation in Upland occurs in December with 2.6 inches
The air quality index in Upland is 111% worse than the national average
The pollution index in Upland is 736% worse than the national average

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Upland 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	44°F	69°F	56°F	2.3"
February	45°F	70°F	57°F	2.0"
March	48°F	74°F	60°F	1.2"
April	51°F	77°F	62°F	0.7"
May	55°F	81°F	66°F	0.4"
June	60°F	88°F	72°F	0.0"
July	65°F	94°F	77°F	0.1"
August	65°F	95°F	78°F	0.0"
September	64°F	93°F	76°F	0.2"
October	57°F	84°F	69°F	0.4"
November	49°F	77°F	62°F	0.6"
December	43°F	68°F	55°F	2.6"

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

Upland air quality information

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

Upland air quality information

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

Average monthly Upland temperature with heat index

Upland monthly precipitation with daily maximum

Upland monthly snow depth with daily maximum

Upland monthly wind speed information

Nearby cities with good air quality

City	Population	Air Quality Index	National Avg.
South San Jose Hills, CA	19,104	72	44.0%
Citrus, CA	10,105	72	44.0%
West Covina, CA	105,808	72	44.0%
Azusa, CA	49,584	72	44.0%
Charter Oak, CA	9,963	89	78.0%
Upland, CA	77,348	89	78.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Jonesboro, AR	77,391	45	10.0%
Layton, UT	77,268	45	10.0%
Kendall, FL	77,228	41	18.0%
Cedar Park, TX	77,181	44	12.0%
Scranton, PA	76,997	38	24.0%
Upland, CA	77,348	89	78.0%

Source: The Upland, 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.