San Dimas, CA Weather Forecast & Monthly Average Temperatures

TEMPERATURE	52
HUMIDITY	53
PRESSURE
WIND COND.	28 2

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San Dimas 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"

Did you know?

The highest monthly average temperature in San Dimas for August is 78 degrees.
The lowest monthly average temperature in San Dimas for December is 55 degrees.
The most monthly precipitation in San Dimas occurs in December with 2.6 inches.
The air quality index in San Dimas is 70% worse than the national average.
The pollution index in San Dimas is 2652% worse than the national average.

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San Dimas 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	San Dimas	California	National
Air quality index	85	55	50
Pollution index	139,490,000	18,106,726	5,066,862

San Dimas air quality information

Measurement	Total
Days measured	365
Days with good air quality	24
Days with moderate air quality	211
Days w/ poor A.Q. for sensitive groups	102
Days with unhealthy air quality	25

San Dimas air quality information

Pollutant	Total
Arsenic	0.200%
Benzene	0.950%
Carbon Tetrachloride	0.080%
Lead	1.320%
Mercury	0.440%

Average monthly San Dimas temperature with heat index

San Dimas monthly precipitation with daily maximum

San Dimas monthly snow depth with daily maximum

San Dimas monthly wind speed information

Nearby cities with good air quality

City, State	Population	Air Quality Index	National Avg.
La Puente, CA	40,384	74	48%
South Monrovia Island, CA	6,779	74	48%
West Covina, CA	107,634	74	48%
Arcadia, CA	57,755	74	48%
Bradbury, CA	954	74	48%
San Dimas, CA	34,109	85	70%

Cities with similar population

City, State	Population	Air Quality Index	National Avg.
Bay City, MI	34,110	285	470%
Redan, GA	34,100	52	4%
Seaside, CA	34,120	36	28%
Hinesville, GA	34,127	40	20%
Dakota Ridge, CO	34,133	42	16%
San Dimas, CA	34,109	85	70%

Source: The San Dimas, 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.