Vista, CA Weather - Forecast & Monthly Averages

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Weather Quick Facts

The highest monthly average temperature in Vista for August is 70.2 degrees
The lowest monthly average temperature in Vista for December is 55.8 degrees
The most monthly precipitation in Vista occurs in December with 2.7 inches
The air quality index in Vista is 52% worse than the national average
The pollution index in Vista is 1581% worse than the national average

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Vista 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	67°F	56°F	1.8"
February	49°F	66°F	56°F	2.0"
March	51°F	67°F	58°F	1.1"
April	54°F	68°F	60°F	0.7"
May	58°F	69°F	63°F	0.4"
June	61°F	71°F	65°F	0.0"
July	65°F	75°F	69°F	0.1"
August	66°F	76°F	70°F	0.1"
September	64°F	77°F	70°F	0.1"
October	59°F	75°F	67°F	0.5"
November	53°F	71°F	61°F	1.0"
December	48°F	66°F	56°F	2.7"

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Vista 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	Vista	California	National
Air quality index	64	55	42
Pollution index	45,820,500	10,473,190	2,726,193

Vista 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 Vista temperature with heat index

Vista monthly precipitation with daily maximum

Vista monthly snow depth with daily maximum

Vista monthly wind speed information

Nearby cities with good air quality

City	Population	Air Quality Index	National Avg.
Poway, CA	49,780	64	28.0%
Fallbrook, CA	32,359	64	28.0%
Carlsbad, CA	114,411	64	28.0%
Lake San Marcos, CA	3,957	64	28.0%
Solana Beach, CA	13,301	64	28.0%
Vista, CA	100,659	64	28.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Tuscaloosa, AL	100,633	35	30.0%
San Angelo, TX	100,509	28	44.0%
Vacaville, CA	99,958	35	30.0%
Lethbridge, AB	101,384	n/a
Kamloops, BC	101,505	n/a
Vista, CA	100,659	64	28.0%

Source: The 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.