Cullman, AL climate
Cullman has mild winters and warm summers, with plenty of rain. A typical July afternoon reaches 89°, a January night drops to 31°, and snow is almost unheard of.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Cullman feels like
Winter
Spring
Summer
Fall
Cullman weather by month
Average highs, lows, rain and snow for every month, from NOAA’s 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 51° | 31° | 5.6" | 0.2" | 11 | 0 | 32° – 48° |
| February | 56° | 34° | 5.3" | 0.3" | 11 | 0 | 36° – 53° |
| March | 64° | 41° | 5.6" | 0 | 12 | 0 | 46° – 62° |
| April | 73° | 48° | 5.5" | 0 | 10 | 0 | 56° – 66° |
| May | 80° | 57° | 4.6" | 0 | 10 | 0 | 64° – 73° |
| June | 86° | 65° | 4.6" | 0 | 11 | 0 | 71° – 79° |
| July | 89° | 68° | 4.5" | 0 | 11 | 0 | 75° – 82° |
| August | 89° | 67° | 3.9" | 0 | 10 | 0 | 73° – 84° |
| September | 84° | 61° | 4.1" | 0 | 7 | 0 | 69° – 79° |
| October | 74° | 50° | 3.8" | 0 | 8 | 0 | 58° – 67° |
| November | 63° | 39° | 4.7" | 0 | 10 | 0 | 44° – 56° |
| December | 54° | 34° | 6.0" | 0.1" | 11 | 0 | 35° – 54° |
| Year | 72° | 49° | 58.1" | 0.6" | 121 | 0 |
“Wet days” have at least 0.01" of rain or melted snow. “Snow on ground” counts days with 1" or more. The 30-year range is the coldest and warmest that month’s average temperature got between 1991 and 2020.
Rain and snow in Cullman
Cullman gets 58 inches of rain and melted snow a year. December is the wettest month and October the driest. Rain or snow falls on about 121 days a year.
About 215 frost-free days a year
In half of years the last 32° night comes by March 31 and the first one by November 1. That leaves about 215 frost-free days for gardens, longer than 80% of U.S. towns.
Heating and cooling a home in Cullman
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Cullman, 63% of that work is heating and 37% is cooling.
Degree days measure how far each day’s average temperature falls below or rises above 65°, added up over a year. Source: NOAA station normals.
How Cullman compares
Compared with every U.S. town and city on TownTapestry, each counted once.
Warmer than it used to be
The last 30 years in Cullman averaged 0.8° warmer than the 1900s. The biggest change is in February (+1.5°). The shift is smaller than in 86% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Cullman’s spot on NOAA’s grid
How much a month can swing
A normal is an average, and real years wander around it. December swings the most: between 1991 and 2020 its average temperature ranged from 35° to 54°. July is the most reliable, staying within 7°.
Common questions about Cullman’s climate
What is the coldest month in Cullman?
January, with a typical high of 51° and a low of 31°.
What is the hottest month in Cullman?
July, with a typical high of 89° and a low of 68°. About 60 days a year reach 90°.
How much snow does Cullman get?
Almost none. A normal year brings 0.6 inches.
When is the first frost in Cullman?
In half of years the first 32° night comes by November 1, and the last spring frost by March 31.
What is the rainiest month in Cullman?
December, with 6.0 inches of rain and melted snow. The year totals 58 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Cullman itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Cullman Nahs, AL (3 mi, snow) and Saint Bernard, AL (2 mi, frost, heat and degree days). Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000.