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United States › North Carolina › New Hanover County › Climate Station WILMINGTON 7 SE, NC US Distance 3 mi Normals 1991–2020

30-year climate normals

New Hanover County Climate and Weather Averages

Hottest month — July

90.1°

average daily high. The coldest month is January, averaging a low of 36.1°F.

New Hanover County gets 65.09" of precipitation a year, and 41% of it falls in Jul, Aug, Sep.

Temperature through the year

Each bar spans the average daily low to the average daily high for that month.

40° 60° 80° JanFebMarAprMayJunJulAugSepOctNovDec
MonthAvg highAvg low Precip
January 56.2° 36.1° 3.95"
February 59.0° 38.1° 3.55"
March 65.6° 43.7° 3.93"
April 73.9° 51.5° 3.70"
May 80.5° 61.8° 4.50"
June 86.8° 69.4° 5.35"
July 90.1° 73.6° 8.79"
August 88.6° 71.9° 8.49"
September 84.5° 66.9° 9.19"
October 75.7° 55.6° 5.53"
November 66.4° 44.1° 3.97"
December 59.7° 38.5° 4.14"

Rainfall by month

Precipitation is spread fairly evenly through the year here, with 41% falling in the wettest three months (Jul, Aug, Sep).

January 3.95"
February 3.55"
March 3.93"
April 3.70"
May 4.50"
June 5.35"
July 8.79"
August 8.49"
September 9.19"
October 5.53"
November 3.97"
December 4.14"
Annual total 65.09"

What this climate costs you

Degree days measure how hard a building has to work to stay comfortable. They are the reason two identical houses have very different power bills, and they are the link between the weather here and what you pay every month.

Cooling degree days How much air conditioning the climate demands 2,131
Heating degree days How much heating the climate demands 2,431
Approximate annual cooling cost At 15.09¢/kWh, North Carolina average $322
Approximate annual electric heating cost Lower where heating is gas rather than electric $128

These are rough planning figures from degree days and the state electricity price, not a bill estimate. House size, insulation and fuel type move them a lot. See the full cost of owning a home in New Hanover County, where electricity is one line of eight.

Common questions

What is the weather like in New Hanover County?

New Hanover County averages a high of 90.1°F in July and a low of 36.1°F in January. Annual precipitation is 65.09 inches, with essentially no snow.

When is the rainy season in New Hanover County?

The wettest stretch is Jul, Aug, Sep, which accounts for 41% of the year's precipitation. Precipitation is relatively evenly distributed across the year.

How hot does it get in New Hanover County?

The average daily high in July, the hottest month, is 90.1°F. That drives 2,131 cooling degree days a year, which is what your air conditioning has to work against.

Does it snow in New Hanover County?

Effectively no. Measurable snowfall is rare in New Hanover County.

Sources

  • Temperature, precipitation and snowfall normals — NOAA National Centers for Environmental Information, 1991–2020 Monthly Climate Normals, station WILMINGTON 7 SE, NC US (USC00319461), 3 miles from the county centroid.
  • Heating and cooling degree days — NOAA, same station and period.
  • Electricity price — US Energy Information Administration, Electric Power Monthly Table 5.6.A, North Carolina residential average.
  • Wet-season share is the wettest three consecutive months as a percentage of annual precipitation, calculated from the monthly normals.