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Broomfield County Climate

Broomfield County, Colorado

NOAA NCEI 1991-2020 Climate Normals
JanFebMarAprMayJunJulAugSepOctNovDec44.0°AVG °F

Avg Annual Temp

44.0°F

Annual Precip

22.6"

Annual Snowfall

95.9"

Extreme Heat Days

17

days >= 90°F/yr

Monthly Temperature

54.4°F avgJFMAMJJASOND

Precipitation Calendar

Dry
Wet= snowfall
1.2"
1.3"
2.2"
3.2"
3.0"
1.9"
2.2"
2.1"
1.8"
1.5"
1.3"
1.1"
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Growing Season & Gardening

USDA Hardiness Zone

6a

Minimum winter temperature range for plant survival

Seasonal Overview

Comfort ZoneSpring35°49°8.3"Summer59°65°6.1"Fall35°56°4.7"Winter27°28°3.5"20°40°60°80°100°

National Comparison

Warmer than 10% of US counties
Wetter than 18% of US counties
More seasonal variation than 25% of US counties

7-Day Outlook

Forecast

Current Conditions

Air Quality

Safety

Weather Alerts

Climate Advisory: Broomfield County

Climate Verdict

Broomfield County has a cool, averaging 44.0°F annually, semi-arid conditions with only 22.6 inches of annual precipitation, rare extreme heat with only 16.939999999999998 days above 90°F annually, heavy winter snowfall averaging 95.9 inches per year. This climate profile shapes everything from energy costs to outdoor recreation opportunities.

Seasonal Breakdown

Winters are cold, with January averaging 27.0°F. summers are pleasantly cool with July averaging 64.9°F. The 38°F seasonal variation provides noticeable but manageable change.

Outdoor & Gardening Guidance

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

Regional Context

Broomfield County closely matches the Colorado statewide average temperature of 45.9°F, it is also noticeably wetter, receiving 6.5 inches more precipitation than the state average.

Frequently Asked Questions

What is the average temperature in Broomfield County?
The average annual temperature in Broomfield County, CO is 44.0°F, based on NOAA 30-year climate normals (1991-2020).
How much rain does Broomfield County get?
Broomfield County receives an average of 22.6 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 Broomfield County?
Yes, Broomfield County receives an average of 95.9 inches of snowfall per year according to NOAA climate normals.
How hot does Broomfield County get in summer?
The average summer temperature (June-August) in Broomfield County is 62.2°F. The county experiences an average of 17 days per year above 90°F.
How cold are winters in Broomfield County?
The average winter temperature (December-February) in Broomfield County is 27.3°F. January, typically the coldest month, averages 27.0°F.

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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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