De Kalb, MS climate
De Kalb has mild winters and warm summers, with plenty of rain. A typical July afternoon reaches 91°, a January night drops to 34°.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in De Kalb feels like
Winter
Spring
Summer
Fall
De Kalb weather by month
Average highs, lows, rain and snow for every month, from NOAA’s 1991–2020 normals.
| Month | High | Low | Rain + melt | 30-yr range |
|---|---|---|---|---|
| January | 56° | 34° | 5.4" | 37° – 53° |
| February | 61° | 38° | 5.3" | 40° – 58° |
| March | 68° | 44° | 5.3" | 50° – 65° |
| April | 76° | 51° | 5.5" | 59° – 68° |
| May | 83° | 60° | 3.9" | 68° – 75° |
| June | 89° | 67° | 4.1" | 75° – 82° |
| July | 91° | 70° | 4.4" | 77° – 83° |
| August | 91° | 69° | 4.0" | 75° – 84° |
| September | 86° | 63° | 3.6" | 72° – 81° |
| October | 77° | 52° | 3.6" | 60° – 70° |
| November | 66° | 41° | 4.0" | 48° – 58° |
| December | 58° | 36° | 5.4" | 37° – 56° |
| Year | 75° | 52° | 54.4" |
“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 De Kalb
De Kalb gets 54 inches of rain and melted snow a year. April is the wettest month and October the driest.
About 245 frost-free days a year
In half of years the last 32° night comes by March 14 and the first one by November 12. That leaves about 245 frost-free days for gardens, longer than 89% of U.S. towns.
Heating and cooling a home in De Kalb
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In De Kalb, 46% of that work is heating and 54% 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 De Kalb 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 De Kalb averaged 0.5° warmer than the 1900s. The biggest change is in February (+1.2°). The shift is smaller than in 98% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at De Kalb’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 37° to 56°. July is the most reliable, staying within 5°.
Common questions about De Kalb’s climate
What is the coldest month in De Kalb?
January, with a typical high of 56° and a low of 34°.
What is the hottest month in De Kalb?
July, with a typical high of 91° and a low of 70°. About 85 days a year reach 90°.
When is the first frost in De Kalb?
In half of years the first 32° night comes by November 12, and the last spring frost by March 14.
What is the rainiest month in De Kalb?
April, with 5.5 inches of rain and melted snow. The year totals 54 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for De Kalb itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Meridian Naas, MS (16 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.