Chatham County Climate
Chatham County, North Carolina
Avg Annual Temp
59.4°F
Annual Precip
45.9"
Annual Snowfall
1.5"
Extreme Heat Days
34.7
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Chatham County Weather
A Warm and Sun-Drenched Interior
Chatham County averages 59.4°F, placing it well above the national median temperature. This humid subtropical climate sees 45.9 inches of rain, which is lower than many of its coastal state neighbors.
The State's Climate Benchmark
Chatham's 59.4°F average is nearly identical to the North Carolina state average of 59.3°F. It serves as a representative example of the typical North Carolina weather experience.
Typical Triangle Area Conditions
Chatham shares a similar profile with its neighbors in the Research Triangle, averaging 35 days of extreme heat. It is slightly warmer than Catawba to the west but avoids the extreme humidity found further east.
Hot July, Very Little Snow
Summer peaks in July with an average of 78.6°F, while January stays above freezing at 40.0°F. Snow is rare in this part of the state, with only 1.5 inches falling annually on average.
Focus on Summer Cooling
With 35 days over 90°F, efficient cooling is the priority for local homeowners. Winter gear can remain light, as snow rarely impacts travel or requires heavy equipment.
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.