30-year climate normals

Washington County Climate and Weather Averages

Hottest month — July

91.6°

average daily high. The coldest month is January, averaging a low of 34.7°F.

Washington County gets 48.61" of precipitation a year, and 29% 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.

Month	Avg high	Avg low	Precip
January	57.9°	34.7°	4.40"
February	61.3°	36.7°	4.13"
March	68.7°	42.8°	4.83"
April	76.0°	50.0°	3.25"
May	83.1°	58.8°	3.16"
June	88.5°	67.2°	4.29"
July	91.6°	70.9°	4.41"
August	89.9°	70.0°	5.14"
September	85.0°	64.5°	4.49"
October	76.3°	52.9°	3.07"
November	66.9°	42.1°	2.88"
December	59.7°	37.2°	4.56"

Rainfall by month

Precipitation is spread fairly evenly through the year here, with 29% falling in the wettest three months (Jul, Aug, Sep).

January 4.40"

February 4.13"

March 4.83"

April 3.25"

May 3.16"

June 4.29"

July 4.41"

August 5.14"

September 4.49"

October 3.07"

November 2.88"

December 4.56"

Annual total 48.61"

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 2,045

Heating degree days How much heating the climate demands 2,430

Approximate annual cooling cost At 15.84¢/kWh, Georgia average $324

Approximate annual electric heating cost Lower where heating is gas rather than electric $135

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 Washington County, where electricity is one line of eight.

Common questions

What is the weather like in Washington County?

Washington County averages a high of 91.6°F in July and a low of 34.7°F in January. Annual precipitation is 48.61 inches, with essentially no snow.

When is the rainy season in Washington County?

The wettest stretch is Jul, Aug, Sep, which accounts for 29% of the year's precipitation. Precipitation is relatively evenly distributed across the year.

How hot does it get in Washington County?

The average daily high in July, the hottest month, is 91.6°F. That drives 2,045 cooling degree days a year, which is what your air conditioning has to work against.

Does it snow in Washington County?

Effectively no. Measurable snowfall is rare in Washington County.

Sources

Temperature, precipitation and snowfall normals — NOAA National Centers for Environmental Information, 1991–2020 Monthly Climate Normals, station SANDERSVILLE, GA US (USC00097777), 0.4 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, Georgia residential average.
Wet-season share is the wettest three consecutive months as a percentage of annual precipitation, calculated from the monthly normals.