TODAY DEC11
TEMPERATURE41
HUMIDITY55
PRESSURE
WIND COND.270 9.2
  • 4429Thu30%20%
  • 3722Fri20%
  • 3419Sat20%
  • 3117Sun
  • 3020Mon
daynightWeather update from Helena Regional Airport at
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Helena West Side 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
January13°F35°F24°F0.6"
February18°F41°F28°F0.7"
March25°F52°F38°F0.5"
April31°F60°F44°F0.9"
May39°F69°F53°F1.8"
June47°F79°F63°F2.0"
July55°F91°F73°F0.7"
August52°F88°F69°F1.1"
September44°F77°F59°F1.1"
October34°F62°F46°F0.8"
November23°F47°F34°F0.8"
December12°F33°F22°F0.8"

Did you know?

  • The highest monthly average temperature in Helena West Side for July is 73 degrees.
  • The lowest monthly average temperature in Helena West Side for December is 22 degrees.
  • The most monthly precipitation in Helena West Side occurs in June with 2 inches.
  • The air quality index in Helena West Side is 30% better than the national average.
  • The pollution index in Helena West Side is 77% better than the national average.

Compare Helena West Side, MT Weather To Other Cities

Helena West Side 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.
IndexHelena West SideMontanaNational
Air quality index353450
Pollution index1,148,190685,9255,066,862

Helena West Side air quality information

MeasurementTotal
Days measured365
Days with good air quality315
Days with moderate air quality50
Days w/ poor A.Q. for sensitive groups
Days with unhealthy air quality

Helena West Side air quality information

PollutantTotal
Arsenic0.000%
Benzene0.020%
Carbon Tetrachloride0.002%
Lead0.010%
Mercury0.000%

Average monthly Helena West Side temperature with heat index

Helena West Side monthly precipitation with daily maximum

Helena West Side monthly snow depth with daily maximum

Helena West Side monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Helena, MT30,1023530%
Helena Valley West Central, MT8,7533530%
Spokane Creek, MT3173530%
Helena Valley Northeast, MT3,1543530%
Marysville, MT923530%
Helena West Side, MT1,2423530%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Palm Shores, FL1,2423530%
Port Byron, NY1,2423236%
Tri-Lakes, IN1,242476%
Payson, IL1,2423432%
Julesburg, CO1,2422060%
Helena West Side, MT1,2423530%
Source: The Helena West Side, 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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