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Jefferson County, Montana, United States

Boulder, Montana, United States

Blazing Place, Montana, United States

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Boulder River Bridge Historical Marker, United States

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Bonan Hill, United States

Weather Radar in Jefferson County, Montana, United States

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FAQ

What are the average monthly temperatures in Jefferson County?

Average temperatures for Jefferson County:

Month	Min Temp	Max Temp
January	-10.8°C (12.5°F)	-2.5°C (27.5°F)
February	-11.2°C (11.8°F)	-1.9°C (28.6°F)
March	-5.8°C (21.5°F)	4.3°C (39.7°F)
April	-2.4°C (27.6°F)	9.0°C (48.1°F)
May	2.3°C (36.2°F)	14.7°C (58.5°F)
June	6.7°C (44.0°F)	20.8°C (69.4°F)
July	10.1°C (50.1°F)	26.6°C (79.8°F)
August	9.6°C (49.2°F)	26.2°C (79.1°F)
September	5.6°C (42.1°F)	20.5°C (68.9°F)
October	-0.7°C (30.8°F)	10.8°C (51.5°F)
November	-7.6°C (18.2°F)	1.8°C (35.3°F)
December	-13.6°C (7.5°F)	-4.7°C (23.5°F)

How much rain does Jefferson County get?

The average annual rainfall for Jefferson County is 303mm (12").

How much snow does Jefferson County get?

The average annual snowfall for Jefferson County is 244mm (10").