Santa Ana, CA Weather - Forecast & Monthly Averages

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Weather Quick Facts

The highest monthly average temperature in Santa Ana for August is 72.2 degrees
The lowest monthly average temperature in Santa Ana for December is 57 degrees
The most monthly precipitation in Santa Ana occurs in December with 2.4 inches
The air quality index in Santa Ana is 111% worse than the national average
The pollution index in Santa Ana is 69% better than the national average

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Santa Ana 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	48°F	69°F	57°F	2.3"
February	49°F	69°F	58°F	1.9"
March	52°F	70°F	60°F	0.9"
April	54°F	72°F	62°F	0.6"
May	59°F	73°F	65°F	0.3"
June	62°F	76°F	67°F	0.0"
July	66°F	80°F	71°F	0.1"
August	66°F	82°F	72°F	0.0"
September	65°F	82°F	72°F	0.2"
October	60°F	79°F	68°F	0.5"
November	54°F	75°F	63°F	0.7"
December	48°F	68°F	57°F	2.4"

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Santa Ana 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	Santa Ana	California	National
Air quality index	89	55	42
Pollution index	858,652	10,473,190	2,726,193

Santa Ana 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	0.002%
Benzene	0.010%
Carbon Tetrachloride	0.000%
Lead	0.020%
Mercury	0.001%

Average monthly Santa Ana temperature with heat index

Santa Ana monthly precipitation with daily maximum

Santa Ana monthly snow depth with daily maximum

Santa Ana monthly wind speed information

Nearby cities with good air quality

City	Population	Air Quality Index	National Avg.
Seal Beach, CA	24,268	72	44.0%
Fountain Valley, CA	56,118	72	44.0%
Midway City, CA	8,681	72	44.0%
Cypress, CA	49,137	72	44.0%
La Habra, CA	62,787	72	44.0%
Santa Ana, CA	332,610	89	78.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Riverside, CA	327,569	89	78.0%
Corpus Christi, TX	326,332	42	16.0%
Lexington-Fayette, KY	322,200	42	16.0%
Vaughan, ON	321,974	n/a
Honolulu, HI	347,181	30	40.0%
Santa Ana, CA	332,610	89	78.0%

Source: The Santa Ana, 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.