Climate averages 1991–2020
Wilmington (North Carolina), United States weather
by month.
See how the year changes. July has the highest average daily maximum; April has the lowest average monthly rainfall.
Long-term climate patterns, not a forecast for a particular trip.
Across the year Wilmington (North Carolina), United States averages a daytime high of 21.6°C and a nighttime low of 14.6°C, with about 1,375 mm of rain on roughly 134 days. July is the warmest month (average high 29.7°C) and January the coolest (12.8°C). August is the wettest month with 183 mm; April is the driest with 82 mm.
The annual picture
A year in Wilmington
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Wilmington (North Carolina), United States climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 12.8°C5.2°C | 5.2°C | 91 | 9.3 | 10.110 h |
| February | 14.2°C6.2°C | 6.2°C | 88 | 8.8 | 10.911 h |
| March | 17.0°C9.0°C | 9.0°C | 101 | 9.2 | 11.912 h |
| April | 21.0°C13.3°C | 13.3°C | 82 | 8.1 | 13.013 h |
| May | 24.9°C17.8°C | 17.8°C | 93 | 10.5 | 13.914 h |
| June | 28.2°C22.0°C | 22.0°C | 125 | 14.5 | 14.414 h |
| July | 29.7°C24.0°C | 24.0°C | 159 | 17.6 | 14.214 h |
| August | 29.0°C23.4°C | 23.4°C | 183 | 17.4 | 13.413 h |
| September | 26.8°C21.1°C | 21.1°C | 166 | 13.4 | 12.412 h |
| October | 22.7°C15.9°C | 15.9°C | 100 | 8.1 | 11.411 h |
| November | 17.9°C10.6°C | 10.6°C | 89 | 8.0 | 10.410 h |
| December | 14.5°C7.1°C | 7.1°C | 97 | 9.1 | 9.910 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
Nearby cities
- FayettevilleUnited States · 125 kmHigh 21.9°C · Low 12.2°C · 1,167 mm rain a year
- GreenvilleUnited States · 162 kmHigh 21.3°C · Low 12.1°C · 1,227 mm rain a year
- RaleighUnited States · 182 kmHigh 21.0°C · Low 11.5°C · 1,161 mm rain a year
- CaryUnited States · 189 kmHigh 20.6°C · Low 11.3°C · 1,161 mm rain a year
- DurhamUnited States · 214 kmHigh 20.8°C · Low 10.8°C · 1,129 mm rain a year
- North CharlestonUnited States · 243 kmHigh 23.1°C · Low 15.1°C · 1,196 mm rain a year
- CharlestonUnited States · 245 kmHigh 22.7°C · Low 16.2°C · 1,196 mm rain a year
- GreensboroUnited States · 264 kmHigh 20.0°C · Low 10.1°C · 1,115 mm rain a year
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsWhat do the high and low temperatures mean?
We average the daily maximum and daily minimum for each calendar month over 1991–2020. They are not record extremes, a forecast range or temperatures at a fixed time of day.
How is a rain day counted?
A local calendar day (standard time, UTC-5, no daylight saving) with at least 1 mm of total precipitation counts as one rain day. We count these for each year and month, then average across 30 years. The average does not predict which days will be wet.
Where do the numbers come from?
ERA5-Land (temperature) and ERA5 (precipitation) reanalysis from the Copernicus Climate Change Service, read from the Open-Meteo open-data archive. Temperature comes from the 0.1° model cell at 34.20°, -77.90° (6 km from the city centre). Rain comes from the 0.25° cell at 34.25°, -78.00°. These are model estimates, not weather-station readings; coast, hills and city streets can differ.
Does this page show sunshine, humidity or sea temperature?
No. The data used here contain air temperature and precipitation only. Daylight hours are calculated from the city's latitude (sunrise to sunset), not measured sunshine.