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United States › North Carolina › Guilford County › Climate Station GREENSBORO WTP, NC US Distance 0.9 mi Normals 1991–2020

30-year climate normals

Guilford County Climate and Weather Averages

Hottest month — July

88.6°

average daily high. The coldest month is January, averaging a low of 29.8°F.

Guilford County gets 45.89" of precipitation a year, and 34% of it falls in Jun, Jul, Aug.

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 50.0° 29.8° 3.21"
February 54.2° 32.7° 2.55"
March 61.9° 39.3° 3.72"
April 71.4° 48.2° 3.63"
May 79.0° 57.5° 3.30"
June 85.1° 65.0° 5.12"
July 88.6° 70.5° 5.80"
August 86.5° 68.2° 4.53"
September 80.6° 61.2° 4.37"
October 71.4° 49.1° 3.18"
November 60.5° 38.8° 3.05"
December 52.5° 32.8° 3.43"

Rainfall by month

Precipitation is spread fairly evenly through the year here, with 34% falling in the wettest three months (Jun, Jul, Aug).

January 3.21"
February 2.55"
March 3.72"
April 3.63"
May 3.30"
June 5.12"
July 5.80"
August 4.53"
September 4.37"
October 3.18"
November 3.05"
December 3.43"
Annual total 45.89"

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 1,567
Heating degree days How much heating the climate demands 3,438
Approximate annual cooling cost At 15.09¢/kWh, North Carolina average $236
Approximate annual electric heating cost Lower where heating is gas rather than electric $182

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 Guilford County, where electricity is one line of eight.

Common questions

What is the weather like in Guilford County?

Guilford County averages a high of 88.6°F in July and a low of 29.8°F in January. Annual precipitation is 45.89 inches, with essentially no snow.

When is the rainy season in Guilford County?

The wettest stretch is Jun, Jul, Aug, which accounts for 34% of the year's precipitation. Precipitation is relatively evenly distributed across the year.

How hot does it get in Guilford County?

The average daily high in July, the hottest month, is 88.6°F. That drives 1,567 cooling degree days a year, which is what your air conditioning has to work against.

Does it snow in Guilford County?

Effectively no. Measurable snowfall is rare in Guilford County.

Sources

  • Temperature, precipitation and snowfall normals — NOAA National Centers for Environmental Information, 1991–2020 Monthly Climate Normals, station GREENSBORO WTP, NC US (USC00313625), 0.9 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.