30-year climate normals

Cullman County Climate and Weather Averages

Hottest month — July

87.9°

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

Cullman County gets 58.66" 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	51.1°	30.9°	5.52"
February	55.3°	33.6°	5.86"
March	63.2°	40.1°	5.52"
April	71.6°	46.8°	5.33"
May	78.8°	55.3°	4.60"
June	85.8°	63.7°	4.35"
July	87.9°	67.5°	4.82"
August	87.7°	66.8°	4.76"
September	82.6°	60.0°	4.04"
October	73.5°	48.1°	3.81"
November	61.8°	37.8°	4.34"
December	53.8°	33.7°	5.71"

Rainfall by month

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

January 5.52"

February 5.86"

March 5.52"

April 5.33"

May 4.60"

June 4.35"

July 4.82"

August 4.76"

September 4.04"

October 3.81"

November 4.34"

December 5.71"

Annual total 58.66"

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 1,471

Heating degree days How much heating the climate demands 3,305

Approximate annual cooling cost At 16.77¢/kWh, Alabama average $247

Approximate annual electric heating cost Lower where heating is gas rather than electric $194

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 Cullman County, where electricity is one line of eight.

Common questions

What is the weather like in Cullman County?

Cullman County averages a high of 87.9°F in July and a low of 30.9°F in January. Annual precipitation is 58.66 inches, with essentially no snow.

When is the rainy season in Cullman 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 Cullman County?

The average daily high in July, the hottest month, is 87.9°F. That drives 1,471 cooling degree days a year, which is what your air conditioning has to work against.

Does it snow in Cullman County?

Effectively no. Measurable snowfall is rare in Cullman County.

Sources

Temperature, precipitation and snowfall normals — NOAA National Centers for Environmental Information, 1991–2020 Monthly Climate Normals, station CULLMAN 3 ENE, AL US (USW00063867), 6 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, Alabama residential average.
Wet-season share is the wettest three consecutive months as a percentage of annual precipitation, calculated from the monthly normals.