Boulder, MT Weather - Forecast & Monthly Averages

TEMPERATURE	46
HUMIDITY	31
PRESSURE
WIND COND.	275 9.6

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Weather Quick Facts

The highest monthly average temperature in Boulder for July is 65.5 degrees
The lowest monthly average temperature in Boulder for December is 17.1 degrees
The most monthly precipitation in Boulder occurs in June with 2.8 inches
The air quality index in Boulder is 5% better than the national average
The pollution index in Boulder is 79% better than the national average

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Boulder 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	9°F	33°F	20°F	0.4"
February	12°F	37°F	23°F	0.4"
March	20°F	44°F	31°F	0.6"
April	26°F	52°F	38°F	1.4"
May	34°F	62°F	47°F	2.2"
June	41°F	71°F	55°F	2.8"
July	46°F	84°F	65°F	1.0"
August	43°F	80°F	61°F	1.2"
September	36°F	71°F	52°F	1.3"
October	28°F	54°F	39°F	1.4"
November	19°F	42°F	30°F	0.5"
December	7°F	29°F	17°F	0.5"

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Boulder 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	Boulder	Montana	National
Air quality index	40	34	42
Pollution index	568,053	834,473	2,726,193

Boulder air quality

Measurement	Total
Days measured	365
Days with good air quality	288
Days with moderate air quality	75
Days w/ poor A.Q. for sensitive groups	2
Days with unhealthy air quality	0

Air quality details

Pollutant	Total
Arsenic	0.000%
Benzene	0.010%
Carbon Tetrachloride	0.002%
Lead	0.003%
Mercury	0.000%

Average monthly Boulder temperature with heat index

Boulder monthly precipitation with daily maximum

Boulder monthly snow depth with daily maximum

Boulder monthly wind speed information

Nearby cities with good air quality

City	Population	Air Quality Index	National Avg.
Clancy, MT	1,964	40	20.0%
Jefferson City, MT	596	40	20.0%
Basin, MT	267	40	20.0%
Elkhorn, MT	0	40	20.0%
Boulder, MT	1,027	40	20.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Glidden, IA	1,027	37	26.0%
Monroe City, IN	1,027	36	28.0%
Barataria, LA	1,027	45	10.0%
Belgrade, MN	1,027	32	36.0%
Walnut Grove, MS	1,027	36	28.0%
Boulder, MT	1,027	40	20.0%

Source: The Boulder, 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.