30-year climate normals

Beaufort County Climate and Weather Averages

Hottest month — July

91.8°

average daily high. The coldest month is January, averaging a low of 40.1°F.

Beaufort County gets 45.02" of precipitation a year, and 38% 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.

Month	Avg high	Avg low	Precip
January	60.3°	40.1°	2.90"
February	63.7°	42.8°	2.91"
March	69.9°	48.7°	3.11"
April	77.0°	56.0°	3.06"
May	84.0°	64.3°	2.50"
June	88.9°	71.3°	4.99"
July	91.8°	74.5°	5.57"
August	90.3°	74.1°	6.50"
September	85.7°	69.5°	4.03"
October	78.1°	59.0°	3.77"
November	69.3°	48.4°	2.51"
December	62.7°	42.9°	3.17"

Rainfall by month

Precipitation is spread fairly evenly through the year here, with 38% falling in the wettest three months (Jun, Jul, Aug).

January 2.90"

February 2.91"

March 3.11"

April 3.06"

May 2.50"

June 4.99"

July 5.57"

August 6.50"

September 4.03"

October 3.77"

November 2.51"

December 3.17"

Annual total 45.02"

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 2,570

Heating degree days How much heating the climate demands 1,732

Approximate annual cooling cost At 16.18¢/kWh, South Carolina average $416

Approximate annual electric heating cost Lower where heating is gas rather than electric $98

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 Beaufort County, where electricity is one line of eight.

Common questions

What is the weather like in Beaufort County?

Beaufort County averages a high of 91.8°F in July and a low of 40.1°F in January. Annual precipitation is 45.02 inches, with essentially no snow.

When is the rainy season in Beaufort County?

The wettest stretch is Jun, Jul, Aug, which accounts for 38% of the year's precipitation. Precipitation is relatively evenly distributed across the year.

How hot does it get in Beaufort County?

The average daily high in July, the hottest month, is 91.8°F. That drives 2,570 cooling degree days a year, which is what your air conditioning has to work against.

Does it snow in Beaufort County?

Effectively no. Measurable snowfall is rare in Beaufort County.

Sources

Temperature, precipitation and snowfall normals — NOAA National Centers for Environmental Information, 1991–2020 Monthly Climate Normals, station BEAUFORT MCAS, SC US (USW00093831), 8.8 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, South Carolina residential average.
Wet-season share is the wettest three consecutive months as a percentage of annual precipitation, calculated from the monthly normals.