John Sevier, TN climate
John Sevier has mild winters and warm summers, with plenty of rain. A typical July afternoon reaches 88°, a January night drops to 29°, and about 4 inches of snow falls in a normal winter.
NOAA 1991-2020 climate normals Updated once a decade11° warmer than normal today. The forecast high is 88°, and a typical Oct 1 in John Sevier peaks around 77°.Live forecast: National Weather Service · Normal: NOAA 1991–2020
What a year in John Sevier feels like
Winter
Spring
Summer
Fall
John Sevier 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 | 48° | 29° | 4.7" | 1.5" | 11 | 1 | 30° – 45° |
| February | 52° | 32° | 4.9" | 1.0" | 11 | 1 | 32° – 49° |
| March | 61° | 38° | 5.0" | 0.9" | 12 | 0 | 43° – 59° |
| April | 71° | 46° | 4.7" | 0 | 11 | 0 | 54° – 63° |
| May | 79° | 55° | 3.9" | 0 | 11 | 0 | 62° – 73° |
| June | 85° | 63° | 4.4" | 0 | 11 | 0 | 71° – 78° |
| July | 88° | 68° | 4.7" | 0 | 11 | 0 | 74° – 81° |
| August | 88° | 67° | 3.5" | 0 | 9 | 0 | 73° – 82° |
| September | 82° | 60° | 3.7" | 0 | 8 | 0 | 67° – 77° |
| October | 72° | 48° | 3.3" | 0 | 8 | 0 | 56° – 64° |
| November | 60° | 37° | 4.1" | 0 | 9 | 0 | 43° – 53° |
| December | 51° | 32° | 5.4" | 0.2" | 12 | 0 | 32° – 52° |
| Year | 70° | 48° | 52.2" | 3.6" | 123 | 2 |
“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 John Sevier
John Sevier gets 52 inches of rain and melted snow a year. December is the wettest month and October the driest. Rain or snow falls on about 123 days a year.
About 198 frost-free days a year
In half of years the last 32° night comes by April 11 and the first one by October 28. That leaves about 198 frost-free days for gardens, longer than 71% of U.S. towns.
Heating and cooling a home in John Sevier
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In John Sevier, 74% of that work is heating and 26% 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.
John Sevier and its neighbors
John Sevier borders 1 town with climate data. January nights across them vary by 0.2°. Knoxville has both the coldest January nights (29°) and the hottest July afternoons (88°). John Sevier’s January low is 29° and its July high 88°.
Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value.
How John Sevier 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 John Sevier averaged 0.9° warmer than the 1900s. The biggest change is in December (+1.8°). The shift is smaller than in 80% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at John Sevier’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 32° to 52°. June is the most reliable, staying within 7°.
Common questions about John Sevier’s climate
What is the coldest month in John Sevier?
January, with a typical high of 48° and a low of 29°.
What is the hottest month in John Sevier?
July, with a typical high of 88° and a low of 68°. About 36 days a year reach 90°.
How much snow does John Sevier get?
About 4 inches in a normal winter, most of it in January.
When is the first frost in John Sevier?
In half of years the first 32° night comes by October 28, and the last spring frost by April 11.
What is the rainiest month in John Sevier?
December, with 5.4 inches of rain and melted snow. The year totals 52 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for John Sevier itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Sevierville, TN (15 mi, snow) and Knoxville Exp Stn, 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.