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San Luis 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-2°F35°F15°F0.4"
February6°F43°F24°F0.3"
March17°F56°F36°F0.6"
April24°F63°F44°F0.7"
May32°F71°F52°F0.7"
June40°F83°F63°F0.3"
July47°F85°F66°F1.4"
August44°F82°F63°F1.1"
September36°F77°F56°F1.1"
October25°F66°F44°F0.8"
November12°F53°F31°F0.5"
December0°F38°F18°F0.5"

Did you know?

  • The highest monthly average temperature in San Luis for July is 66 degrees.
  • The lowest monthly average temperature in San Luis for January is 15 degrees.
  • The most monthly precipitation in San Luis occurs in July with 1.4 inches.
  • The air quality index in San Luis is 69% better than the national average.
  • The pollution index in San Luis is 94% better than the national average.

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Compare San Luis, CO Weather To Other Cities

San Luis 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.
IndexSan LuisColoradoNational
Air quality index153850
Pollution index292,5392,034,6195,066,862

San Luis air quality information

MeasurementTotal
Days measured357
Days with good air quality352
Days with moderate air quality5
Days w/ poor A.Q. for sensitive groups
Days with unhealthy air quality

San Luis air quality information

PollutantTotal
Arsenic0.000%
Benzene0.010%
Carbon Tetrachloride0.000%
Lead0.000%
Mercury0.000%

Average monthly San Luis temperature with heat index

San Luis monthly precipitation with daily maximum

San Luis monthly snow depth with daily maximum

San Luis monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
San Acacio, CO681570%
San Luis, CO6781570%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Riceboro, GA6784020%
Millsboro, PA6783040%
Interlaken, NY6783236%
Farmersville, IL6783530%
Cedar Key, FL6772452%
San Luis, CO6781570%
Source: The San Luis, CO 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.