Roosevelt, San Bernardino, CA Weather - Forecast & Monthly Averages

TEMPERATURE	66
HUMIDITY	18
PRESSURE	101970
WIND COND.	360

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Weather Quick Facts

The highest monthly average temperature in Roosevelt for August is 77.8 degrees
The lowest monthly average temperature in Roosevelt for December is 55.1 degrees
The most monthly precipitation in Roosevelt occurs in December with 1.9 inches
The air quality index in Roosevelt is 111% worse than the national average
The pollution index in Roosevelt is 1058% worse than the national average

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Roosevelt 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	70°F	56°F	1.6"
February	45°F	72°F	57°F	1.2"
March	47°F	75°F	60°F	0.7"
April	50°F	78°F	63°F	0.5"
May	55°F	82°F	66°F	0.2"
June	59°F	89°F	72°F	0.0"
July	65°F	94°F	77°F	0.2"
August	65°F	95°F	78°F	0.1"
September	63°F	94°F	76°F	0.2"
October	56°F	85°F	69°F	0.2"
November	49°F	77°F	62°F	0.5"
December	44°F	69°F	55°F	1.9"

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Roosevelt 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	Roosevelt	San Bernardino	California
Air quality index	89	89	55
Pollution index	31,575,300	31,575,300	10,473,190

Roosevelt 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	0.110%
Benzene	0.260%
Carbon Tetrachloride	0.020%
Lead	0.350%
Mercury	0.280%

Average monthly Roosevelt temperature with heat index

Roosevelt monthly precipitation with daily maximum

Roosevelt monthly snow depth with daily maximum

Roosevelt monthly wind speed information

Nearby cities with good air quality

City	Population	Air Quality Index	National Avg.
Lake Arrowhead, CA	9,741	89	78.0%
Grand Terrace, CA	12,559	89	78.0%
Mentone, CA	10,141	89	78.0%
Norco, CA	27,021	89	78.0%
Lytle Creek, CA	656	89	78.0%
San Bernardino, CA	216,784	89	78.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Tacoma, WA	215,766	18	64.0%
Des Moines, IA	215,408	39	22.0%
Richmond Hill, ON	215,407	n/a
Spring Valley, NV	218,697	54	8.0%
Enterprise, NV	214,591	54	8.0%
San Bernardino, CA	216,784	89	78.0%

Source: The Roosevelt, San Bernardino, 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.