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Alta Average Weather

In the event that the weather data was unavailable for this city, estimates based upon nearby cities were used.
MonthTemp. (min)Temp. (max)Temp. (avg)Precipitation
January-31°F39°F12°F0.1"
February-26°F48°F22°F0.1"
March-6°F61°F30°F0.2"
April1°F77°F36°F0.2"
May19°F79°F48°F0.3"
June28°F90°F57°F0.4"
July34°F94°F68°F0.1"
August32°F91°F65°F0.3"
September27°F89°F53°F0.4"
October7°F80°F40°F0.5"
November-12°F67°F32°F0.4"
December-16°F43°F19°F0.2"

Did you know?

  • The highest monthly average temperature in Alta for July is 68 degrees.
  • The lowest monthly average temperature in Alta for January is 12 degrees.
  • The most monthly precipitation in Alta occurs in October with 0.5 inches.
  • The air quality index in Alta is 19% better than the national average.
  • The pollution index in Alta is 95% better than the national average.

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Compare Alta, WY Weather To Other Cities

Alta 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.
IndexAltaWyomingNational
Air quality index403950
Pollution index225,0621,082,0855,066,862

Alta air quality information

MeasurementTotal
Days measured365
Days with good air quality351
Days with moderate air quality14
Days w/ poor A.Q. for sensitive groups
Days with unhealthy air quality

Alta air quality information

PollutantTotal
Arsenic0.000%
Benzene0.004%
Carbon Tetrachloride0.000%
Lead0.000%
Mercury0.000%

Average monthly Alta temperature with heat index

Alta monthly precipitation with daily maximum

Alta monthly snow depth with daily maximum

Alta monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Victor, ID2,3644020%
Teton Village, WY1764020%
Driggs, ID1,8394020%
Tetonia, ID3884020%
Alta, WY5554020%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Mer Rouge, LA5555612%
Sacred Heart, MN5553530%
Cokeville, WY555476%
Hopeland, PA5554314%
Fairplay, MD5554118%
Alta, WY5554020%
Source: The Alta, WY 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.