Harrison, MT Weather - Forecast & Monthly Averages

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Weather Quick Facts

The highest monthly average temperature in Harrison for July is 69.6 degrees
The lowest monthly average temperature in Harrison for December is 20 degrees
The most monthly precipitation in Harrison occurs in June with 2.7 inches
The air quality index in Harrison is 41% better than the national average
The pollution index in Harrison is 89% better than the national average

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Harrison 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	11°F	35°F	22°F	0.3"
February	15°F	39°F	27°F	0.4"
March	24°F	51°F	36°F	0.9"
April	29°F	59°F	43°F	1.7"
May	37°F	67°F	52°F	2.2"
June	44°F	78°F	60°F	2.7"
July	50°F	90°F	70°F	0.8"
August	47°F	87°F	66°F	1.2"
September	40°F	77°F	57°F	1.0"
October	31°F	61°F	44°F	1.3"
November	20°F	44°F	31°F	1.0"
December	9°F	32°F	20°F	0.5"

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Harrison 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	Harrison	Montana	National
Air quality index	25	34	42
Pollution index	293,782	834,473	2,726,193

Harrison air quality

Measurement	Total
Days measured	365
Days with good air quality	337
Days with moderate air quality	28
Days w/ poor A.Q. for sensitive groups	0
Days with unhealthy air quality	0

Air quality details

Pollutant	Total
Arsenic	0.000%
Benzene	0.004%
Carbon Tetrachloride	0.000%
Lead	0.000%
Mercury	0.000%

Average monthly Harrison temperature with heat index

Harrison monthly precipitation with daily maximum

Harrison monthly snow depth with daily maximum

Harrison monthly wind speed information

Nearby cities with good air quality

City	Population	Air Quality Index	National Avg.
Whitehall, MT	1,000	20	60.0%
Cardwell, MT	107	20	60.0%
Pony, MT	138	25	50.0%
Willow Creek, MT	216	25	50.0%
Three Forks, MT	1,977	25	50.0%
Harrison, MT	64	25	50.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Theba, AZ	64	74	48.0%
Sandyville, IA	64	39	22.0%
La Prairie, IL	64	41	18.0%
Sidney, IN	64	31	38.0%
Reserve, KS	64	43	14.0%
Harrison, MT	64	25	50.0%

Source: The Harrison, 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.