Grass Range, MT Weather Forecast & Monthly Average Temperatures

Current weather conditions temporarily unavailable!

Grass Range Average Weather

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	-26°F	65°F	25°F	0.3"
February	-30°F	63°F	26°F	0.4"
March	-11°F	72°F	33°F	0.8"
April	0°F	79°F	40°F	1.7"
May	16°F	86°F	50°F	3.3"
June	28°F	91°F	58°F	3.6"
July	36°F	99°F	69°F	1.3"
August	37°F	99°F	65°F	1.1"
September	27°F	94°F	56°F	1.5"
October	1°F	83°F	43°F	1.6"
November	-17°F	73°F	35°F	0.7"
December	-30°F	59°F	21°F	0.4"

Did you know?

The highest monthly average temperature in Grass Range for July is 69 degrees.
The lowest monthly average temperature in Grass Range for December is 21 degrees.
The most monthly precipitation in Grass Range occurs in June with 3.6 inches.
The air quality index in Grass Range is 51% better than the national average.
The pollution index in Grass Range is 95% better than the national average.

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Grass Range 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	Grass Range	Montana	National
Air quality index	24	34	50
Pollution index	231,483	685,925	5,066,862

Grass Range air quality information

Measurement	Total
Days measured	365
Days with good air quality	340
Days with moderate air quality	24
Days w/ poor A.Q. for sensitive groups	1
Days with unhealthy air quality

Grass Range air quality information

Pollutant	Total
Arsenic	0.000%
Benzene	0.001%
Carbon Tetrachloride	0.000%
Lead	0.000%
Mercury	0.000%

Average monthly Grass Range temperature with heat index

Grass Range monthly precipitation with daily maximum

Grass Range monthly snow depth with daily maximum

Grass Range monthly wind speed information

Nearby cities with good air quality

City, State	Population	Air Quality Index	National Avg.
Grass Range, MT	119	24	52%

Cities with similar population

City, State	Population	Air Quality Index	National Avg.
Northwest Stanwood, WA	119	31	38%
New Bavaria, OH	119	30	40%
Kennan, WI	119	36	28%
Clearmont, WY	119	36	28%
Carlos, MD	119	32	36%
Grass Range, MT	119	24	52%

Source: The Grass Range, 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.