30-year climate normals

Marshall County Climate and Weather Averages

Hottest month — August

88.7°

average daily high. The coldest month is January, averaging a low of 29.0°F.

Marshall County gets 55.48" of precipitation a year, and 30% of it falls in Mar, Apr, May.

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	50.3°	29.0°	4.17"
February	54.8°	31.8°	5.18"
March	63.6°	38.8°	5.18"
April	73.1°	47.1°	5.85"
May	79.5°	56.3°	5.45"
June	85.7°	63.7°	4.59"
July	88.6°	67.2°	4.30"
August	88.7°	66.1°	2.67"
September	83.4°	58.6°	3.60"
October	73.2°	47.1°	4.47"
November	61.6°	36.8°	4.38"
December	52.8°	32.1°	5.64"

Rainfall by month

Precipitation is spread fairly evenly through the year here, with 30% falling in the wettest three months (Mar, Apr, May).

January 4.17"

February 5.18"

March 5.18"

April 5.85"

May 5.45"

June 4.59"

July 4.30"

August 2.67"

September 3.60"

October 4.47"

November 4.38"

December 5.64"

Annual total 55.48"

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 1,534

Heating degree days How much heating the climate demands 3,480

Approximate annual cooling cost At 16.16¢/kWh, Mississippi average $248

Approximate annual electric heating cost Lower where heating is gas rather than electric $197

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 Marshall County, where electricity is one line of eight.

Common questions

What is the weather like in Marshall County?

Marshall County averages a high of 88.7°F in August and a low of 29.0°F in January. Annual precipitation is 55.48 inches, with essentially no snow.

When is the rainy season in Marshall County?

The wettest stretch is Mar, Apr, May, which accounts for 30% of the year's precipitation. Precipitation is relatively evenly distributed across the year.

How hot does it get in Marshall County?

The average daily high in August, the hottest month, is 88.7°F. That drives 1,534 cooling degree days a year, which is what your air conditioning has to work against.

Does it snow in Marshall County?

Effectively no. Measurable snowfall is rare in Marshall County.

Sources

Temperature, precipitation and snowfall normals — NOAA National Centers for Environmental Information, 1991–2020 Monthly Climate Normals, station HOLLY SPRINGS 4 N, MS US (USW00023803), 5.5 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, Mississippi residential average.
Wet-season share is the wettest three consecutive months as a percentage of annual precipitation, calculated from the monthly normals.