Day Valley, CA Weather - Forecast & Monthly Averages

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Weather Quick Facts

The highest monthly average temperature in Day Valley for September is 62.1 degrees
The lowest monthly average temperature in Day Valley for December is 49.2 degrees
The most monthly precipitation in Day Valley occurs in December with 3.6 inches
The air quality index in Day Valley is 17% better than the national average
The pollution index in Day Valley is 99% worse than the national average

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Day Valley 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	40°F	63°F	50°F	3.5"
February	42°F	64°F	52°F	2.9"
March	44°F	65°F	53°F	3.5"
April	45°F	68°F	55°F	1.6"
May	48°F	70°F	57°F	0.3"
June	51°F	73°F	60°F	0.2"
July	54°F	73°F	61°F	0.0"
August	54°F	73°F	62°F	0.0"
September	53°F	76°F	62°F	0.1"
October	50°F	75°F	60°F	0.9"
November	44°F	68°F	54°F	1.7"
December	39°F	62°F	49°F	3.6"

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Day Valley 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	Day Valley	California	National
Air quality index	35	55	42
Pollution index	5,429,550	10,473,190	2,726,193

Day Valley air quality

Measurement	Total
Days measured	365
Days with good air quality	347
Days with moderate air quality	18
Days w/ poor A.Q. for sensitive groups	0
Days with unhealthy air quality	0

Air quality details

Pollutant	Total
Arsenic	0.020%
Benzene	0.080%
Carbon Tetrachloride	0.000%
Lead	0.050%
Mercury	0.150%

Average monthly Day Valley temperature with heat index

Day Valley monthly precipitation with daily maximum

Day Valley monthly snow depth with daily maximum

Day Valley monthly wind speed information

Nearby cities with good air quality

City	Population	Air Quality Index	National Avg.
Aptos Hills-Larkin Valley, CA	1,397	35	30.0%
Freedom, CA	3,959	35	30.0%
Mount Hermon, CA	1,394	35	30.0%
Pleasure Point, CA	6,173	35	30.0%
Seacliff, CA	3,580	35	30.0%
Day Valley, CA	3,414	35	30.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Johnston City, IL	3,414	43	14.0%
West Liberty, KY	3,414	42	16.0%
Hanover, MN	3,414	46	8.0%
New Hampton, IA	3,413	39	22.0%
Maiden, NC	3,413	36	28.0%
Day Valley, CA	3,414	35	30.0%

Source: The Day Valley, 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.