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Park County Climate

JanFebMarAprMayJunJulAugSepOctNovDec42.3°AVG °F

Avg Annual Temp

42.3°F

Annual Precip

17.3"

Annual Snowfall

94.2"

Extreme Heat Days

13

days >= 90°F/yr

Monthly Temperature

54.4°F avgJFMAMJJASOND

Precipitation Calendar

Dry
Wet= snowfall
0.9"
0.8"
1.1"
1.7"
2.6"
2.6"
1.5"
1.2"
1.4"
1.5"
1.0"
0.9"
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Growing Season & Gardening

USDA Hardiness Zone

5a

Minimum winter temperature range for plant survival

Growing Degree Days

1,456

Limited to cold-tolerant varieties

Last spring frost (32°F): 06/04
First fall frost (32°F): 09/25

Seasonal Overview

Comfort ZoneSpring33°49°5.4"Summer57°65°5.4"Fall31°55°3.9"Winter23°25°2.5"20°40°60°80°100°

National Comparison

Warmer than 6% of US counties
Wetter than 10% of US counties
More seasonal variation than 43% of US counties

7-Day Outlook

Forecast

Current Conditions

Air Quality

Safety

Weather Alerts

Climate Advisory: Park County

Climate Verdict

Park County has a cool, averaging 42.3°F annually, semi-arid conditions with only 17.3 inches of annual precipitation, rare extreme heat with only 12.716666666666667 days above 90°F annually, heavy winter snowfall averaging 94.2 inches per year. This climate profile shapes everything from energy costs to outdoor recreation opportunities.

Seasonal Breakdown

Winters are very cold — January averages 23.5°F. summers are pleasantly cool with July averaging 65.0°F. The 41°F seasonal variation provides noticeable but manageable change. December is typically the coldest month and July the warmest.

Outdoor & Gardening Guidance

Winter sports enthusiasts benefit from reliable snow cover for 3-4 months annually.

Regional Context

Park County closely matches the Montana statewide average temperature of 43.7°F.

Climate Profile

About Park County Weather

Deep Cold in the High Rockies

The 42.3°F average temperature sits roughly 12 degrees below the national median. This high-altitude climate creates a rugged, cold environment typical of the Northern Rockies.

Colder Than the State Median

At 42.3°F, Park is 1.4 degrees cooler than the Montana average of 43.7°F. It represents the colder, mountainous side of the state's diverse geography.

Higher Precipitation than Surrounding Basins

Park receives 17.3 inches of precipitation, which is higher than the state average and neighboring plains counties. Its snowy profile distinguishes it from the drier central basins nearby.

Heavy Snow and Mild Summers

Winters are heavy, delivering 94.2 inches of snow and a 24.0°F average. Summers remain mild with only 13 days of extreme heat and a July average of 65.0°F.

Equipping for Massive Snowfall

Snowfall of nearly 95 inches makes heavy-duty blowers and roof rakes essential tools for residents. Summer planning is simpler, as the mild 61.8°F seasonal average rarely demands high-energy cooling.

Frequently Asked Questions

What is the average temperature in Park County?
The average annual temperature in Park County, MT is 42.3°F, based on NOAA 30-year climate normals (1991-2020).
How much rain does Park County get?
Park County receives an average of 17.3 inches of precipitation per year, including both rain and meltwater from snow. This is based on NOAA 30-year climate normals.
Does it snow in Park County?
Yes, Park County receives an average of 94.2 inches of snowfall per year according to NOAA climate normals.
How hot does Park County get in summer?
The average summer temperature (June-August) in Park County is 61.8°F. The county experiences an average of 13 days per year above 90°F.
How cold are winters in Park County?
The average winter temperature (December-February) in Park County is 24.0°F. January, typically the coldest month, averages 23.5°F.

Track your own weather in Park County

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Data sources: NOAA National Centers for Environmental Information (NCEI), U.S. Climate Normals 1991-2020. Forecast and alert data from National Weather Service API. Air quality data from Open-Meteo.

Climate normals are 30-year averages of weather variables. Station data is aggregated to county level. Forecasts and alerts are fetched live and may change frequently. Data is informational only — not a substitute for official National Weather Service forecasts or emergency weather warnings.

By Evan Brooks, Data EditorUpdated Reviewed by Evan Brooks, Data Editor
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