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Phillips County Climate

Phillips County, Colorado

NOAA NCEI 1991-2020 Climate Normals
JanFebMarAprMayJunJulAugSepOctNovDec48.9°AVG °F

Avg Annual Temp

48.9°F

Annual Precip

17.9"

Annual Snowfall

30.4"

Extreme Heat Days

40

days >= 90°F/yr

Monthly Temperature

54.4°F avgJFMAMJJASOND

Precipitation Calendar

Dry
Wet= snowfall
0.3"
0.5"
0.9"
1.9"
2.8"
2.8"
2.8"
2.4"
1.4"
1.2"
0.5"
0.4"
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Growing Season & Gardening

USDA Hardiness Zone

5b

Minimum winter temperature range for plant survival

Growing Degree Days

2,755

Supports most vegetables & fruits

Last spring frost (32°F): 05/11
First fall frost (32°F): 10/03

Seasonal Overview

Comfort ZoneSpring38°57°5.6"Summer68°73°7.9"Fall37°63°3.1"Winter27°29°1.3"20°40°60°80°100°

National Comparison

Warmer than 26% of US counties
Wetter than 11% of US counties
More seasonal variation than 65% of US counties

7-Day Outlook

Forecast

Current Conditions

Air Quality

Safety

Weather Alerts

Climate Advisory: Phillips County

Climate Verdict

Phillips County has a cool, averaging 48.9°F annually, semi-arid conditions with only 17.9 inches of annual precipitation, occasional hot days — 39.7 per year above 90°F, moderate snowfall of 30.4 inches annually. This climate profile shapes everything from energy costs to outdoor recreation opportunities.

Seasonal Breakdown

Winters are cold, with January averaging 27.2°F. summers are warm — July averages 73.3°F. The 46°F seasonal variation provides noticeable but manageable change.

Outdoor & Gardening Guidance

Growing season and gardening data is currently limited for Phillips County. Check the USDA Plant Hardiness Zone Map and local extension office for specific guidance.

Regional Context

Phillips County is 3.0°F warmer than the Colorado statewide average of 45.9°F.

Climate Profile

About Phillips County Weather

Phillips runs warm with above-average moisture

Phillips County's 48.9°F annual temperature exceeds the U.S. median of 47.5°F, while its 17.9 inches of precipitation sit above the national average. This combination creates a semi-humid plains climate, relatively wet for northeastern Colorado.

Warmest tier, above-average precipitation

At 48.9°F, Phillips County ranks among Colorado's warmest counties, sitting 2.9°F above the state average of 46.0°F. Its 17.9 inches of annual precipitation actually exceed the state average of 16.0 inches, making it one of Colorado's wetter plains counties.

Twin-like climate to Montezuma and Montrose

Phillips (48.9°F) sits nearly identical to Montezuma (48.8°F) and just 0.7°F above Montrose (48.2°F), but its precipitation of 17.9 inches surpasses both neighbors significantly. This extra moisture creates slightly greener plains than its western counterparts.

Moderate summers, cold snaps, manageable snow

Phillips averages 70.7°F in summer with 40 days of 90°F-plus heat—notably higher than Montezuma but lower than Morgan's 58 days. Winter averages 28.1°F with 30.4 inches of snow, making it moderately snowy with respectable precipitation year-round.

Balanced climate calls for moderate HVAC prep

With 40 extreme heat days annually and 17.9 inches of precipitation, Phillips residents need solid air conditioning but benefit from the extra moisture reducing dust and fire risk. Standard snow removal equipment suffices for 30 inches of annual snowfall, and the relatively balanced climate allows year-round outdoor planning with seasonal adjustments.

Frequently Asked Questions

What is the average temperature in Phillips County?
The average annual temperature in Phillips County, CO is 48.9°F, based on NOAA 30-year climate normals (1991-2020).
How much rain does Phillips County get?
Phillips County receives an average of 17.9 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 Phillips County?
Yes, Phillips County receives an average of 30.4 inches of snowfall per year according to NOAA climate normals.
How hot does Phillips County get in summer?
The average summer temperature (June-August) in Phillips County is 70.7°F. The county experiences an average of 40 days per year above 90°F.
How cold are winters in Phillips County?
The average winter temperature (December-February) in Phillips County is 28.1°F. January, typically the coldest month, averages 27.2°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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