Southwest, Chula Vista, CA Weather - Forecast & Monthly Averages

TEMPERATURE	59
HUMIDITY	83
PRESSURE	101490
WIND COND.	17

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Weather Quick Facts

The highest monthly average temperature in Southwest for September is 67.9 degrees
The lowest monthly average temperature in Southwest for December is 55.1 degrees
The most monthly precipitation in Southwest occurs in February with 3.8 inches
The air quality index in Southwest is 52% worse than the national average
The pollution index in Southwest is 1581% worse than the national average

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Southwest 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	64°F	55°F	2.8"
February	49°F	64°F	56°F	3.8"
March	51°F	65°F	58°F	0.1"
April	53°F	66°F	59°F	0.0"
May	57°F	67°F	62°F	1.5"
June	60°F	68°F	63°F	0.0"
July	63°F	72°F	67°F	0.0"
August	64°F	73°F	68°F	0.0"
September	63°F	74°F	68°F	0.3"
October	58°F	72°F	64°F	0.0"
November	53°F	69°F	60°F	0.1"
December	48°F	64°F	55°F	1.5"

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Southwest 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	Southwest	Chula Vista	California
Air quality index	64	64	55
Pollution index	45,820,500	45,820,500	10,473,190

Southwest air quality

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

Air quality details

Pollutant	Total
Arsenic	1.130%
Benzene	0.410%
Carbon Tetrachloride	0.030%
Lead	0.600%
Mercury	0.080%

Average monthly Southwest temperature with heat index

Southwest monthly precipitation with daily maximum

Southwest monthly snow depth with daily maximum

Southwest monthly wind speed information

Nearby cities with good air quality

City	Population	Air Quality Index	National Avg.
Imperial Beach, CA	27,334	64	28.0%
National City, CA	61,342	64	28.0%
Bostonia, CA	17,532	64	28.0%
Granite Hills, CA	4,020	64	28.0%
Jamul, CA	5,776	64	28.0%
Chula Vista, CA	268,779	64	28.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Fort Wayne, IN	268,378	45	10.0%
Irvine, CA	272,694	89	78.0%
St. Petersburg, FL	264,001	43	14.0%
Jersey City, NJ	262,652	51	2.0%
Toledo, OH	275,116	40	20.0%
Chula Vista, CA	268,779	64	28.0%

Source: The Southwest, Chula Vista, 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.