Phelps County Climate

Phelps County, Missouri

JanFebMarAprMayJunJulAugSepOctNovDec56.3°AVG °F

Avg Annual Temp

56.3°F

Annual Precip

47.4"

Annual Snowfall

17.3"

Extreme Heat Days

43

days >= 90°F/yr

Monthly Temperature

54.4°F avgJFMAMJJASOND

Precipitation Calendar

Dry
Wet= snowfall
2.7"
2.5"
4.1"
4.9"
5.5"
4.4"
4.7"
4.5"
4.0"
3.3"
3.9"
2.8"
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Seasonal Overview

Comfort ZoneSpring45°66°14.5"Summer74°79°13.6"Fall46°70°11.2"Winter32°36°8.1"20°40°60°80°100°

National Comparison

Warmer than 56% of US counties
Wetter than 64% of US counties
More seasonal variation than 64% of US counties

Climate Profile

About Phelps County Weather

Warmer and Wetter Than National Norms

With an average annual temperature of 56.3°F, Phelps County is noticeably warmer than the national median. It also experiences heavy annual precipitation of 47.4 inches, significantly exceeding the national average.

A High-Heat Leader in Missouri

Phelps County ranks as warmer than the state average of 54.9°F and is wetter than the Missouri benchmark of 43.8 inches. It experiences 43 days of extreme heat annually, far surpassing many northern Missouri counties.

Ozark Plateau Heat Patterns

Phelps is warmer than its northern neighbor Gasconade and experiences more extreme heat days than Pettis County. Its 17.3 inches of snowfall is surprisingly high for its southern latitude, likely influenced by local Ozark elevations.

Intense Summer Sun and Ozark Winters

July reaches a warm average of 78.8°F, and the county endures 43 days per year where temperatures top 90°F. Despite the heat, winters bring 17.3 inches of snow and a January average of 31.7°F.

Manage Humidity and Peak Summer Heat

High-capacity air conditioning is a necessity given the 43 days of extreme heat. Additionally, the 47.4 inches of annual rain requires robust gutter systems and drainage planning for property owners.

Frequently Asked Questions

What is the average temperature in Phelps County?
The average annual temperature in Phelps County, MO is 56.3°F, based on NOAA 30-year climate normals (1991-2020).
How much rain does Phelps County get?
Phelps County receives an average of 47.4 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 Phelps County?
Yes, Phelps County receives an average of 17.3 inches of snowfall per year according to NOAA climate normals.
How hot does Phelps County get in summer?
The average summer temperature (June-August) in Phelps County is 76.9°F. The county experiences an average of 43 days per year above 90°F.
How cold are winters in Phelps County?
The average winter temperature (December-February) in Phelps County is 34.6°F. January, typically the coldest month, averages 31.7°F.

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Data source: NOAA National Centers for Environmental Information (NCEI), U.S. Climate Normals 1991-2020.

Climate normals are 30-year averages of weather variables computed from 1991 to 2020. Station data is aggregated to county level using spatial averaging. Data is informational only — not a substitute for official National Weather Service forecasts or emergency weather warnings.

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