Alta Sierra, CA Weather - Forecast & Monthly Averages

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TEMPERATURE	61
HUMIDITY
PRESSURE	29.89
WIND COND.	240 11.2

Key findings

The highest monthly average temperature in Alta Sierra for July is 79 degrees
The lowest monthly average temperature in Alta Sierra for December is 46 degrees
The most monthly precipitation in Alta Sierra occurs in January with 10.1 inches
The air quality index in Alta Sierra is 12% better than the national average
The pollution index in Alta Sierra is 15% better than the national average

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Alta Sierra 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	38°F	57°F	47°F	10.1"
February	41°F	62°F	51°F	8.0"
March	44°F	67°F	55°F	8.4"
April	46°F	74°F	59°F	4.6"
May	53°F	83°F	68°F	2.6"
June	58°F	91°F	75°F	2.6"
July	62°F	96°F	79°F	0.2"
August	60°F	95°F	77°F	0.4"
September	57°F	90°F	73°F	1.3"
October	50°F	79°F	63°F	4.8"
November	43°F	65°F	53°F	7.5"
December	37°F	56°F	46°F	9.8"

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Alta Sierra 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	Alta Sierra	California	National
Air quality index	44	55	50
Pollution index	4,289,310	18,106,726	5,066,862

Alta Sierra air quality information

Measurement	Total
Days measured	365
Days with good air quality	239
Days with moderate air quality	124
Days w/ poor A.Q. for sensitive groups	2
Days with unhealthy air quality	0

Alta Sierra air quality information

Pollutant	Total
Arsenic	0.050%
Benzene	0.070%
Carbon Tetrachloride	0.001%
Lead	0.060%
Mercury	0.010%

Average monthly Alta Sierra temperature with heat index

Alta Sierra monthly precipitation with daily maximum

Alta Sierra monthly snow depth with daily maximum

Alta Sierra monthly wind speed information

Nearby cities with good air quality

City, State	Population	Air Quality Index	National Avg.
Lake Wildwood, CA	5,289	44	12%
Smartsville, CA	142	44	12%
Alta, CA	448	44	12%
Nevada City, CA	3,117	44	12%
Colfax, CA	2,189	44	12%
Alta Sierra, CA	6,639	44	12%

Cities with similar population

City, State	Population	Air Quality Index	National Avg.
Belfast, ME	6,641	36	28%
Opp, AL	6,635	35	30%
Oneonta, AL	6,645	43	14%
Twin Lakes, CO	6,645	58	16%
Montevallo, AL	6,633	53	6%
Alta Sierra, CA	6,639	44	12%

Source: The Alta Sierra, 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.