Phelps County Climate
Phelps County, Missouri
Avg Annual Temp
56.3°F
Annual Precip
47.4"
Annual Snowfall
17.3"
Extreme Heat Days
43
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
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
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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.