Wilmington Temperatures: Averages by Month





The numbers here tell you how hot and cold the weather usually is in Wilmington, North Carolina during each month of the year.

The average high and low temperatures are listed below monthly and annually for the city, in both degrees Fahrenheit and Celsius.

Maximums and minimums are only part of the temperature picture. To fill in the rest, there's information on how many days a month get above or below a given temperature.

To find out how often it rises over 70, 80 or 90 °F each month in Wilmington, scroll down farther. There are also monthly and yearly counts of days with cold weather.

The first set of high and low temperatures are averages for 2010 to 2019. Everything else here is based on 1991 to 2020 weather.

10-year temperature averages for Wilmington, 2010 to 2019
High °F Low °F   High °C Low °C
56 35 January 13 2
61 39 February 16 4
66 43 March 19 6
75 53 April 24 12
82 63 May 28 17
88 70 June 31 21
90 73 July 32 23
89 72 August 31 22
85 68 September 29 20
77 57 October 25 14
67 44 November 19 7
61 41 December 16 5
75 55 Year 24 13
30-year temperature averages for Wilmington, 1991 to 2020
High °F Low °F   High °C Low °C
57 36 January 14 2
60 38 February 16 4
67 44 March 19 7
75 53 April 24 11
81 61 May 27 16
87 69 June 31 21
90 73 July 32 23
88 72 August 31 22
84 67 September 29 19
76 56 October 25 13
67 45 November 20 7
60 39 December 16 4
74 54 Year 24 12

Days of Hot Weather in Wilmington

About half of summer days at Wilmington have temperatures climbing into the 90s Fahrenheit, while the rest have highs in the 80s. The 90-degree heat usually arrives as early as April and lingers into September or October, for a total of 45 days a year.

Despite the steady heat, temperatures of 100 °F (38 °C) or more are rare here. Wilmington typically sees a day that hot on an average of once a year.

Days per month in Wilmington of at least 70, 80 or 90 °F
  70 °F
21 °C
80 °F
27 °C
90 °F
32 °C
January 5 0 0
February 6 0 0
March 13 3 0
April 22 9 0
May 30 19 3
June 30 28 10
July 31 31 17
August 31 30 12
September 30 24 4
October 25 11 0
November 13 2 0
December 6 0 0
Year 241 157 45

How Often Wilmington Has Cold Temperatures

The thermometer can drop to freezing at Wilmington any night from November until March, and in some years April or October. The city averages 37 frosty nights a year. Typically two of those cool down to 20 °F or below.

After a cold night, Wilmington normally thaws out during the day. Just once every couple of years the thermometer here lingers below freezing for an entire day in January or February.

Days per month on average in Wilmington when the minimum temperature drops to 20, 32, or 40 °F or below
  20 °F
-8 °C
32 °F
0 °C
40 °F
4 °C
January 2 13 21
February 0 8 18
March 0 4 12
April 0 0 3
May 0 0 0
June 0 0 0
July 0 0 0
August 0 0 0
September 0 0 0
October 0 0 1
November 0 3 11
December 0 9 19
Year 2 37 85
References

Jay Lawrimore, Ron Ray, Scott Applequist, Bryant Korzeniewski, Matthew Menne. 2016. Global Summary of the Month and Year, Version 1.0. NOAA National Centers for Environmental Information.

NOAA National Centers for Environmental Information (NCEI). Climate Normals.

North Carolina Temperatures
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