Cape Hatteras, Outer Banks Temperatures: Averages by Month





The numbers here tell you how hot and cold the weather usually is at Cape Hatteras on the Outer Banks of North Carolina during each month of the year.

The average high and low temperatures are listed below, monthly and annually, for the Outer Banks landmark 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 at Hatteras Island, 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 recorded at the Billy Mitchell Airport near the villages of Frisco and Buxton.

10-year temperature averages for Cape Hatteras, 2010 to 2019
High °F Low °F   High °C Low °C
54 39 January 12 4
57 42 February 14 5
60 46 March 16 8
69 55 April 21 13
77 65 May 25 18
84 72 June 29 22
86 75 July 30 24
86 75 August 30 24
83 71 September 28 22
75 62 October 24 17
64 50 November 18 10
59 46 December 15 8
71 58 Year 21 14
30-year temperature averages for Cape Hatteras, 1991 to 2020
High °F Low °F   High °C Low °C
55 41 January 13 5
57 42 February 14 5
61 46 March 16 8
69 54 April 21 12
77 63 May 25 17
84 71 June 29 22
87 75 July 31 24
87 74 August 31 24
83 71 September 28 22
75 61 October 24 16
66 52 November 19 11
59 45 December 15 7
72 58 Year 22 14

Days of Hot Weather in Cape Hatteras

The hottest days at Cape Hatteras usually peak in the 80s F, thanks to the moderating influence of the Atlantic Ocean. Hatteras Island averages eight days a year when the thermometer climbs to 90 degrees or more.

The hottest days most commonly occur in July. But 90-degree weather can show up anytime from May to September.

Days per month in Cape Hatteras of at least 70, 80 or 90 °F
  70 °F
21 °C
80 °F
27 °C
90 °F
32 °C
January 1 0 0
February 1 0 0
March 4 0 0
April 14 1 0
May 26 9 0
June 30 24 1
July 31 30 4
August 31 30 3
September 30 20 0
October 23 6 0
November 9 0 0
December 4 0 0
Year 204 119 8

How Often Cape Hatteras Has Cold Temperatures

Nighttime temperatures on the Outer Banks at Hatteras Island typically drop to below freezing for 17 nights a year. Yet the thermometer rarely goes as low as 20 °F (-8 °C). The island gets weather that cold just once a year on average. A night of 20 or below is most likely in January, but can happen in February.

No matter how cold it is at night, nearly every day on the Outer Banks warms to above freezing. The Frisco and Buxton area averages just one frost-filled day per year.

Days per month on average at Cape Hatteras when the minimum temperature drops to 32, 40, or 50 °F or below
  32 °F
0 °C
40 °F
4 °C
50 °F
10 °C
January 7 16 27
February 5 14 24
March 2 9 23
April 0 1 11
May 0 0 2
June 0 0 0
July 0 0 0
August 0 0 0
September 0 0 0
October 0 0 4
November 0 3 15
December 3 11 23
Year 17 54 129
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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