Portsmouth city Climate
Portsmouth city, Virginia
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
61.0°F
Annual Precip
49.4"
Annual Snowfall
4.6"
Extreme Heat Days
38
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
8b
Minimum winter temperature range for plant survival
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Portsmouth city
Climate Verdict
Portsmouth city has a warm, averaging 61.0°F year-round, moderately wet with 49.4 inches of annual precipitation, occasional hot days — 37.63333333333333 per year above 90°F, light snow averaging 4.6 inches per year. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are mild, with January temperatures averaging 41.6°F. summers are hot, with July averaging 80.4°F. The 39°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
Portsmouth city is 4.8°F warmer than the Virginia statewide average of 56.2°F, it is somewhat wetter than average for Virginia.
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.