Oregon County Climate
Oregon County, Missouri
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
55.7°F
Annual Precip
47.2"
Annual Snowfall
4.2"
Extreme Heat Days
48
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
7a
Minimum winter temperature range for plant survival
3,981
Supports most vegetables & fruits
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Oregon County
Climate Verdict
Oregon County has a mild, with an average annual temperature of 55.7°F, moderately wet with 47.2 inches of annual precipitation, occasional hot days — 48.2 per year above 90°F, light snow averaging 4.2 inches per year. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are cold, with January averaging 33.1°F. summers are warm — July averages 77.1°F. The 44°F seasonal variation provides noticeable but manageable change.
Outdoor & Gardening Guidance
The moderate temperatures support hiking, cycling, and camping comfortably in spring, summer, and fall.
Regional Context
Oregon County closely matches the Missouri statewide average temperature of 54.9°F, it is somewhat wetter than average for Missouri.
Climate Profile
About Oregon County Weather
Mild Temperatures in the Ozarks
Oregon County averages 55.7°F annually, slightly exceeding the national median. The area is characterized by high humidity and substantial annual rainfall of 47.2 inches.
Warmer than the Missouri Average
Oregon County is roughly one degree warmer than the Missouri state average of 54.9°F. It reflects the typical climate of the state's southern border region.
Cooler than its Western Neighbors
Despite being in the south, Oregon County's 55.7°F average is cooler than nearby Ozark County at 57.0°F. It also receives less snow than central Missouri, averaging only 4.2 inches.
Hot Summers and Light Snow
The county endures 48 days of extreme heat above 90°F, mostly during the 75.5°F average summer. Winters are relatively short with a January average of 33.1°F and very little snow.
Prepare for Rain and Heat
Outdoor enthusiasts should plan for 48 days of extreme heat and frequent rain. With 47.2 inches of annual precipitation, moisture-wicking gear and home dehumidifiers are highly recommended.
Frequently Asked Questions
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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.