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Hays Average Temperature

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
January16°F37°F26°F0.8"
February18°F40°F28°F1.1"
March27°F52°F39°F0.8"
April33°F60°F46°F2.6"
May38°F64°F51°F3.6"
June50°F78°F65°F4.5"
July55°F86°F71°F4.0"
August53°F84°F69°F1.6"
September46°F73°F60°F3.4"
October37°F62°F49°F3.5"
November24°F47°F35°F1.6"
December14°F34°F24°F1.1"

Did you know?

  • The highest monthly average temperature in Hays for July is 71 degrees.
  • The lowest monthly average temperature in Hays for December is 24 degrees.
  • The most monthly precipitation in Hays occurs in June with 4.5 inches.
  • The air quality index in Hays is 48% better than the national average.
  • The pollution index in Hays is 95% better than the national average.

Compare Hays, MT Weather To Other Cities

Hays 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.
IndexHaysMontanaNational
Air quality index263450
Pollution index232,374685,9255,066,862

Hays air quality information

MeasurementTotal
Days measured337
Days with good air quality311
Days with moderate air quality26
Days w/ poor A.Q. for sensitive groups
Days with unhealthy air quality

Hays air quality information

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

Average monthly Hays temperature with heat index

Hays monthly precipitation with daily maximum

Hays monthly snow depth with daily maximum

Hays monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Lodge Pole, MT2572648%
Zortman, MT262648%
Hays, MT1,0232648%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Stem, NC1,0233530%
Lakeside City, TX1,0232648%
Philadelphia, TN1,023394%
Vienna, NJ1,0233922%
Autaugaville, AL1,0233726%
Hays, MT1,0232648%
Source: The Hays, MT 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.
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