30-year climate normals

Copiah County Climate and Weather Averages

Hottest month — July

90.4°

average daily high. The coldest month is January, averaging a low of 39.3°F.

Copiah County gets 61.64" of precipitation a year, and 29% of it falls in Dec, Jan, Feb.

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	58.1°	39.3°	6.18"
February	62.8°	42.4°	5.82"
March	69.8°	48.3°	5.76"
April	76.1°	54.1°	5.39"
May	82.8°	62.5°	4.41"
June	88.4°	69.0°	4.90"
July	90.4°	71.3°	6.11"
August	90.3°	70.7°	4.97"
September	86.5°	66.1°	3.83"
October	78.2°	55.7°	3.90"
November	67.2°	45.8°	4.55"
December	60.1°	40.8°	5.82"

Rainfall by month

Precipitation is spread fairly evenly through the year here, with 29% falling in the wettest three months (Dec, Jan, Feb).

January 6.18"

February 5.82"

March 5.76"

April 5.39"

May 4.41"

June 4.90"

July 6.11"

August 4.97"

September 3.83"

October 3.90"

November 4.55"

December 5.82"

Annual total 61.64"

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 2,291

Heating degree days How much heating the climate demands 2,011

Approximate annual cooling cost At 16.16¢/kWh, Mississippi average $370

Approximate annual electric heating cost Lower where heating is gas rather than electric $114

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 Copiah County, where electricity is one line of eight.

Common questions

What is the weather like in Copiah County?

Copiah County averages a high of 90.4°F in July and a low of 39.3°F in January. Annual precipitation is 61.64 inches, with essentially no snow.

When is the rainy season in Copiah County?

The wettest stretch is Dec, Jan, Feb, which accounts for 29% of the year's precipitation. Precipitation is relatively evenly distributed across the year.

How hot does it get in Copiah County?

The average daily high in July, the hottest month, is 90.4°F. That drives 2,291 cooling degree days a year, which is what your air conditioning has to work against.

Does it snow in Copiah County?

Effectively no. Measurable snowfall is rare in Copiah County.

Sources

Temperature, precipitation and snowfall normals — NOAA National Centers for Environmental Information, 1991–2020 Monthly Climate Normals, station HAZLEHURST 5 SW, MS US (USC00223920), 2.4 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, Mississippi residential average.
Wet-season share is the wettest three consecutive months as a percentage of annual precipitation, calculated from the monthly normals.