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Wilmington, North Carolina climate
Cfa Humid subtropical
Wilmington has a seasonal mild-temperate climate (Humid subtropical, Köppen Cfa). The hottest month is July with an average daily high near 89°F, while the coldest is January averaging around 35°F at night. Around 57 inches of precipitation falls each year, peaking in August (7.5 inches) and easing off in April (3.4 inches).
Temperature & precipitation
Daily high–low temperature range with the monthly average, plus monthly precipitation · 1991–2020 normals · hover a month for the exact figuresClear vs cloudy days
Share of days each month that are clear, partly cloudy or cloudy · 1991–2020 · hover a month for the day countsWilmington climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 56 | 59 | 66 | 74 | 80 | 87 | 89 | 88 | 83 | 75 | 66 | 59 |
| Avg temp (°F) | 46 | 48 | 55 | 63 | 70 | 78 | 81 | 80 | 75 | 65 | 55 | 49 |
| Avg low (°F) | 35 | 38 | 43 | 52 | 61 | 69 | 73 | 71 | 67 | 55 | 44 | 38 |
| Precipitation (in) | 4.0 | 3.5 | 3.8 | 3.4 | 4.2 | 5.2 | 6.2 | 7.5 | 7.5 | 4.1 | 3.6 | 3.7 |
| Snowfall (in) | 0.4 | 0.2 | — | — | — | — | — | — | — | — | — | — |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°F) | 56 | 59 | 66 | 74 | 80 | 87 |
| Avg temp (°F) | 46 | 48 | 55 | 63 | 70 | 78 |
| Avg low (°F) | 35 | 38 | 43 | 52 | 61 | 69 |
| Precipitation (in) | 4.0 | 3.5 | 3.8 | 3.4 | 4.2 | 5.2 |
| Snowfall (in) | 0.4 | 0.2 | — | — | — | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°F) | 89 | 88 | 83 | 75 | 66 | 59 |
| Avg temp (°F) | 81 | 80 | 75 | 65 | 55 | 49 |
| Avg low (°F) | 73 | 71 | 67 | 55 | 44 | 38 |
| Precipitation (in) | 6.2 | 7.5 | 7.5 | 4.1 | 3.6 | 3.7 |
| Snowfall (in) | — | — | — | — | — | — |
How often — frequency of weather events
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 10 | 9 | 10 | 8 | 10 | 11 | 12 | 13 | 10 | 9 | 9 | 10 |
| Days with high ≥ 90°F (days) | — | 0.0 | — | 0.2 | 2 | 9 | 15 | 10 | 3 | 0.3 | — | — |
| Days with low ≤ 32°F (days) | 13 | 9 | 4 | 0.5 | — | — | — | — | — | 0.2 | 4 | 9 |
| Days with snowfall ≥ 1 in (days) | 0.1 | 0.1 | — | — | — | — | — | — | — | — | — | — |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 10 | 9 | 10 | 8 | 10 | 11 |
| Days with high ≥ 90°F (days) | — | 0.0 | — | 0.2 | 2 | 9 |
| Days with low ≤ 32°F (days) | 13 | 9 | 4 | 0.5 | — | — |
| Days with snowfall ≥ 1 in (days) | 0.1 | 0.1 | — | — | — | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 12 | 13 | 10 | 9 | 9 | 10 |
| Days with high ≥ 90°F (days) | 15 | 10 | 3 | 0.3 | — | — |
| Days with low ≤ 32°F (days) | — | — | — | 0.2 | 4 | 9 |
| Days with snowfall ≥ 1 in (days) | — | — | — | — | — | — |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 68 | 68 | 62 | 55 | 55 | 58 | 57 | 59 | 58 | 53 | 59 | 67 |
| Clear days (≤ 30% cloud) | 3 | 2 | 6 | 8 | 8 | 6 | 6 | 6 | 7 | 10 | 5 | 3 |
| Partly cloudy days (30–70%) | 12 | 11 | 12 | 12 | 12 | 12 | 13 | 13 | 11 | 10 | 13 | 13 |
| Cloudy days (≥ 70%) | 16 | 14 | 14 | 11 | 12 | 12 | 11 | 12 | 12 | 11 | 12 | 16 |
| Relative humidity (%) | 81 | 79 | 78 | 77 | 77 | 77 | 78 | 78 | 78 | 77 | 78 | 81 |
| Wind speed (mph) | 9.6 | 9.6 | 9.7 | 9.4 | 8.3 | 7.7 | 7.5 | 7.1 | 8.2 | 8.3 | 8.8 | 9.1 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 68 | 68 | 62 | 55 | 55 | 58 |
| Clear days (≤ 30% cloud) | 3 | 2 | 6 | 8 | 8 | 6 |
| Partly cloudy days (30–70%) | 12 | 11 | 12 | 12 | 12 | 12 |
| Cloudy days (≥ 70%) | 16 | 14 | 14 | 11 | 12 | 12 |
| Relative humidity (%) | 81 | 79 | 78 | 77 | 77 | 77 |
| Wind speed (mph) | 9.6 | 9.6 | 9.7 | 9.4 | 8.3 | 7.7 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 57 | 59 | 58 | 53 | 59 | 67 |
| Clear days (≤ 30% cloud) | 6 | 6 | 7 | 10 | 5 | 3 |
| Partly cloudy days (30–70%) | 13 | 13 | 11 | 10 | 13 | 13 |
| Cloudy days (≥ 70%) | 11 | 12 | 12 | 11 | 12 | 16 |
| Relative humidity (%) | 78 | 78 | 78 | 77 | 78 | 81 |
| Wind speed (mph) | 7.5 | 7.1 | 8.2 | 8.3 | 8.8 | 9.1 |
Methodology & sources
Temperature & precipitation — the official 1991–2020 climate normals from NOAA's U.S. Climate Normals, measured at New Rvr Mcaf (NOAA GHCN station USW00093727), about 70 km from the city centre.
Cloud, humidity, wind & sunshine — modelled estimates from NASA POWER, NASA's satellite-and-reanalysis climatology. This is the standard global source for atmospheric variables, which are not measured at most weather stations.