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United States › South Carolina › Fairfield County › Climate Station WINNSBORO, SC US Distance 3.1 mi Normals 1991–2020

30-year climate normals

Fairfield County Climate and Weather Averages

Hottest month — July

91.1°

average daily high. The coldest month is January, averaging a low of 30.9°F.

Fairfield County gets 45.12" of precipitation a year, and 28% 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 53.1° 30.9° 3.99"
February 57.1° 33.4° 3.59"
March 65.0° 39.6° 4.03"
April 74.0° 48.2° 3.10"
May 81.1° 56.9° 3.07"
June 87.6° 65.2° 4.05"
July 91.1° 68.9° 4.10"
August 88.8° 67.9° 4.69"
September 83.3° 61.8° 3.88"
October 73.6° 50.0° 3.29"
November 63.4° 38.9° 3.19"
December 55.4° 33.5° 4.14"

Rainfall by month

Precipitation is spread fairly evenly through the year here, with 28% falling in the wettest three months (Jun, Jul, Aug).

January 3.99"
February 3.59"
March 4.03"
April 3.10"
May 3.07"
June 4.05"
July 4.10"
August 4.69"
September 3.88"
October 3.29"
November 3.19"
December 4.14"
Annual total 45.12"

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 1,750
Heating degree days How much heating the climate demands 3,107
Approximate annual cooling cost At 16.18¢/kWh, South Carolina average $283
Approximate annual electric heating cost Lower where heating is gas rather than electric $176

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 Fairfield County, where electricity is one line of eight.

Common questions

What is the weather like in Fairfield County?

Fairfield County averages a high of 91.1°F in July and a low of 30.9°F in January. Annual precipitation is 45.12 inches, with essentially no snow.

When is the rainy season in Fairfield County?

The wettest stretch is Jun, Jul, Aug, which accounts for 28% of the year's precipitation. Precipitation is relatively evenly distributed across the year.

How hot does it get in Fairfield County?

The average daily high in July, the hottest month, is 91.1°F. That drives 1,750 cooling degree days a year, which is what your air conditioning has to work against.

Does it snow in Fairfield County?

Effectively no. Measurable snowfall is rare in Fairfield County.

Sources

  • Temperature, precipitation and snowfall normals — NOAA National Centers for Environmental Information, 1991–2020 Monthly Climate Normals, station WINNSBORO, SC US (USC00389327), 3.1 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.