Grass Range, MT Weather - Forecast & Monthly Averages

TEMPERATURE	46
HUMIDITY	37
PRESSURE	101190
WIND COND.	290 14.8

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Weather Quick Facts

The highest monthly average temperature in Grass Range for July is 70.5 degrees
The lowest monthly average temperature in Grass Range for January is 24.9 degrees
The most monthly precipitation in Grass Range occurs in September with 4.6 inches
The air quality index in Grass Range is 50% better than the national average
The pollution index in Grass Range is 92% better than the national average

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Grass Range Average Temperature

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	15°F	35°F	25°F	1.2"
February	23°F	44°F	32°F	0.6"
March	25°F	51°F	37°F	1.2"
April	31°F	57°F	43°F	2.1"
May	38°F	66°F	51°F	4.2"
June	49°F	77°F	63°F	3.5"
July	54°F	87°F	71°F	3.1"
August	52°F	85°F	68°F	3.7"
September	46°F	75°F	59°F	4.6"
October	35°F	60°F	46°F	4.2"
November	24°F	47°F	35°F	2.0"
December	16°F	37°F	26°F	1.8"

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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	21	34	42
Pollution index	231,483	834,473	2,726,193

Grass Range air quality

Measurement	Total
Days measured	362
Days with good air quality	357
Days with moderate air quality	4
Days w/ poor A.Q. for sensitive groups	0
Days with unhealthy air quality	1

Air quality details

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	Population	Air Quality Index	National Avg.
Grass Range, MT	121	21	58.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Alcan Border, AK	121	38	24.0%
Tenakee Springs, AK	121	20	60.0%
Providence, AL	121	36	28.0%
Rondo, AR	121	45	10.0%
Pine Level, FL	121	41	18.0%
Grass Range, MT	121	21	58.0%

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.