Fairmount, TN climate
Fairmount has mild winters and warm summers, with plenty of rain. A typical July afternoon reaches 84°, a January night drops to 28°, and about 4 inches of snow falls in a normal winter.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Fairmount feels like
Winter
Spring
Summer
Fall
Fairmount 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 | 30-yr range |
|---|---|---|---|---|---|---|
| January | 46° | 28° | 5.8" | 1.4" | 8 | 29° – 45° |
| February | 50° | 31° | 5.9" | 1.8" | 9 | 31° – 49° |
| March | 58° | 39° | 6.0" | 0.3" | 9 | 42° – 58° |
| April | 68° | 47° | 5.8" | 0 | 9 | 52° – 62° |
| May | 75° | 56° | 4.7" | 0 | 8 | 60° – 70° |
| June | 81° | 62° | 5.2" | 0 | 8 | 67° – 76° |
| July | 84° | 66° | 5.0" | 0 | 9 | 71° – 79° |
| August | 84° | 65° | 4.2" | 0 | 8 | 69° – 80° |
| September | 79° | 59° | 4.8" | 0 | 6 | 66° – 75° |
| October | 69° | 49° | 4.5" | 0 | 6 | 56° – 64° |
| November | 57° | 39° | 5.2" | 0 | 7 | 42° – 53° |
| December | 49° | 31° | 6.6" | 0.8" | 8 | 31° – 51° |
| Year | 67° | 48° | 63.7" | 4.3" | 95 |
“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 Fairmount
Fairmount gets 64 inches of rain and melted snow a year. December is the wettest month and August the driest. Rain or snow falls on about 95 days a year.
About 219 frost-free days a year
In half of years the last 32° night comes by March 31 and the first one by November 6. That leaves about 219 frost-free days for gardens, longer than 82% of U.S. towns.
Heating and cooling a home in Fairmount
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Fairmount, 77% of that work is heating and 23% 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.
Fairmount and its neighbors
Fairmount borders 3 towns with climate data. January nights across them vary by 1.8°. Lone Oak has the coldest January nights (28°) and Walden the hottest July afternoons (86°). Fairmount’s January low is 28° and its July high 84°.
Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value.
How Fairmount 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 Fairmount averaged 1.0° warmer than the 1900s. The biggest change is in December (+2.0°). The shift is smaller than in 74% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Fairmount’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 31° to 51°. July is the most reliable, staying within 8°.
Common questions about Fairmount’s climate
What is the coldest month in Fairmount?
January, with a typical high of 46° and a low of 28°.
What is the hottest month in Fairmount?
July, with a typical high of 84° and a low of 66°. About 7 days a year reach 90°.
How much snow does Fairmount get?
About 4 inches in a normal winter, most of it in February.
When is the first frost in Fairmount?
In half of years the first 32° night comes by November 6, and the last spring frost by March 31.
What is the rainiest month in Fairmount?
December, with 6.6 inches of rain and melted snow. The year totals 64 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Fairmount itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Soddy Daisy-mowbray Mtn, TN (8 mi, snow) and Lookout Mtn-point Park, TN (12 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.