Rockingham County Climate
Rockingham County, New Hampshire
Avg Annual Temp
48.2°F
Annual Precip
47.3"
Annual Snowfall
64.9"
Extreme Heat Days
12.150000000000002
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Rockingham County Weather
New Hampshire's Warmest Coastal Influence
Rockingham County is the warmest in the state with a 48.2°F annual average. While still cooler than the US median, its coastal proximity provides a slightly more temperate climate.
The State's Temperature Leader
At 48.2°F, Rockingham stays nearly 3 degrees warmer than the state average of 45.4°F. It represents the warmest climate New Hampshire has to offer.
Highest Heat in the Region
Rockingham records 12 days of extreme heat, the highest in the state and double that of Carroll County. It also sees the least snow in this group at 64.9 inches.
Warm Summers and Softened Winters
Winter averages are the mildest in the state at 27.1°F. Conversely, July is the state's warmest with a 71.5°F average and frequent spikes above 90°F.
Cooling is a Summer Priority
Given the 12 days of extreme heat, robust air conditioning is a primary concern for residents. Winter still requires attention, as January averages stay below freezing at 24.4°F.
Frequently Asked Questions
What is the average temperature in Rockingham County?
How much rain does Rockingham County get?
Does it snow in Rockingham County?
How hot does Rockingham County get in summer?
How cold are winters in Rockingham County?
Track your own weather in Rockingham County
Ambient Weather personal weather stations give you hyperlocal climate data.
Sponsored
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.