Rancho San Diego, CA Weather - Forecast & Monthly Averages

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TEMPERATURE	48
HUMIDITY	88
PRESSURE
WIND COND.	252

Key findings

The highest monthly average temperature in Rancho San Diego for August is 72 degrees
The lowest monthly average temperature in Rancho San Diego for December is 56 degrees
The most monthly precipitation in Rancho San Diego occurs in December with 2.5 inches
The air quality index in Rancho San Diego is 29% worse than the national average
The pollution index in Rancho San Diego is 97% better than the national average

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Rancho San Diego 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	45°F	69°F	56°F	1.9"
February	47°F	69°F	57°F	2.2"
March	50°F	70°F	59°F	1.0"
April	53°F	72°F	61°F	0.7"
May	57°F	72°F	63°F	0.4"
June	61°F	76°F	66°F	0.0"
July	65°F	80°F	71°F	0.2"
August	66°F	82°F	72°F	0.0"
September	64°F	83°F	72°F	0.2"
October	58°F	80°F	68°F	0.5"
November	51°F	74°F	62°F	0.9"
December	46°F	68°F	56°F	2.5"

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Rancho San Diego 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	Rancho San Diego	California	National
Air quality index	64	55	50
Pollution index	162,740	18,106,726	5,066,862

Rancho San Diego air quality information

Measurement	Total
Days measured	365
Days with good air quality	87
Days with moderate air quality	253
Days w/ poor A.Q. for sensitive groups	23
Days with unhealthy air quality	2

Rancho San Diego air quality information

Pollutant	Total
Arsenic	0.000%
Benzene	0.003%
Carbon Tetrachloride	0.000%
Lead	0.000%
Mercury	0.000%

Average monthly Rancho San Diego temperature with heat index

Rancho San Diego monthly precipitation with daily maximum

Rancho San Diego monthly snow depth with daily maximum

Rancho San Diego monthly wind speed information

Nearby cities with good air quality

City, State	Population	Air Quality Index	National Avg.
Chula Vista, CA	260,598	64	28%
Lemon Grove, CA	26,421	64	28%
Spring Valley, CA	30,128	64	28%
Crest, CA	2,733	64	28%
Harbison Canyon, CA	4,128	64	28%
Rancho San Diego, CA	22,018	64	28%

Cities with similar population

City, State	Population	Air Quality Index	National Avg.
Union Hill-Novelty Hill, WA	22,015	45	10%
Watertown, SD	22,026	25	50%
Willowbrook, CA	22,035	72	44%
South Holland, IL	22,040	55	10%
Hunters Creek, FL	21,988	39	22%
Rancho San Diego, CA	22,018	64	28%

Source: The Rancho San Diego, 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.