Mount Vernon, AL climate
Mount Vernon has mild winters and warm summers, with plenty of rain. A typical July afternoon reaches 92°, a January night drops to 39°, and snow is almost unheard of.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Mount Vernon feels like
Winter
Spring
Summer
Fall
Mount Vernon 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 | 61° | 39° | 5.9" | 0 | 11 | 0 | 43° – 57° |
| February | 66° | 42° | 4.9" | 0 | 9 | 0 | 44° – 63° |
| March | 73° | 48° | 5.4" | 0.1" | 8 | 0 | 54° – 68° |
| April | 79° | 54° | 4.9" | 0 | 7 | 0 | 62° – 71° |
| May | 85° | 62° | 4.7" | 0 | 8 | 0 | 71° – 77° |
| June | 90° | 69° | 6.3" | 0 | 12 | 0 | 77° – 83° |
| July | 92° | 72° | 6.7" | 0 | 15 | 0 | 79° – 84° |
| August | 91° | 71° | 5.9" | 0 | 13 | 0 | 78° – 85° |
| September | 88° | 67° | 5.0" | 0 | 9 | 0 | 75° – 82° |
| October | 80° | 56° | 3.7" | 0 | 6 | 0 | 64° – 72° |
| November | 70° | 45° | 4.5" | 0 | 7 | 0 | 52° – 63° |
| December | 63° | 41° | 5.4" | 0.1" | 9 | 0 | 45° – 61° |
| Year | 78° | 55° | 63.4" | 0.2" | 113 | 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 Mount Vernon
Mount Vernon gets 63 inches of rain and melted snow a year. July is the wettest month and October the driest. Rain or snow falls on about 113 days a year.
About 272 frost-free days a year
In half of years the last 32° night comes by February 28 and the first one by November 25. That leaves about 272 frost-free days for gardens, longer than 93% of U.S. towns.
Heating and cooling a home in Mount Vernon
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Mount Vernon, 39% of that work is heating and 61% is cooling, so air conditioning is the bigger bill.
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 Mount Vernon 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 Mount Vernon averaged 0.6° warmer than the 1900s. The biggest change is in March (+1.4°). The shift is smaller than in 92% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Mount Vernon’s spot on NOAA’s grid
How much a month can swing
A normal is an average, and real years wander around it. February swings the most: between 1991 and 2020 its average temperature ranged from 44° to 63°. July is the most reliable, staying within 5°.
Common questions about Mount Vernon’s climate
What is the coldest month in Mount Vernon?
January, with a typical high of 61° and a low of 39°.
What is the hottest month in Mount Vernon?
July, with a typical high of 92° and a low of 72°. About 61 days a year reach 90°.
How much snow does Mount Vernon get?
Almost none. A normal year brings 0.2 inches.
When is the first frost in Mount Vernon?
In half of years the first 32° night comes by November 25, and the last spring frost by February 28.
What is the rainiest month in Mount Vernon?
July, with 6.7 inches of rain and melted snow. The year totals 63 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Mount Vernon itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Bay Minette, AL (19 mi) away. Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000.