Middle Valley, TN climate
Middle Valley has mild winters and warm summers, with plenty of rain. A typical July afternoon reaches 89°, a January night drops to 31°, and about 4 inches of snow falls in a normal winter.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Middle Valley feels like
Winter
Spring
Summer
Fall
Middle Valley 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 | 50° | 31° | 5.1" | 1.4" | 8 | 32° – 48° |
| February | 54° | 34° | 5.3" | 1.8" | 9 | 34° – 52° |
| March | 63° | 40° | 5.2" | 0.3" | 9 | 45° – 61° |
| April | 72° | 47° | 5.1" | 0 | 9 | 55° – 65° |
| May | 80° | 56° | 4.1" | 0 | 8 | 63° – 73° |
| June | 86° | 64° | 4.3" | 0 | 8 | 71° – 79° |
| July | 89° | 68° | 4.5" | 0 | 9 | 75° – 83° |
| August | 89° | 67° | 3.8" | 0 | 8 | 73° – 83° |
| September | 84° | 61° | 4.4" | 0 | 6 | 69° – 78° |
| October | 73° | 49° | 3.6" | 0 | 6 | 57° – 66° |
| November | 61° | 38° | 4.5" | 0 | 7 | 44° – 55° |
| December | 53° | 33° | 5.3" | 0.8" | 8 | 34° – 53° |
| Year | 71° | 49° | 55.2" | 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 Middle Valley
Middle Valley gets 55 inches of rain and melted snow a year. December is the wettest month and October the driest. Rain or snow falls on about 95 days a year.
About 203 frost-free days a year
In half of years the last 32° night comes by April 7 and the first one by October 29. That leaves about 203 frost-free days for gardens, longer than 74% of U.S. towns.
Heating and cooling a home in Middle Valley
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Middle Valley, 75% of that work is heating and 25% 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.
Middle Valley and its neighbors
Middle Valley borders 3 towns with climate data. January nights across them vary by 0.8°. Soddy-Daisy has the coldest January nights (30°) and Chattanooga the hottest July afternoons (90°). Middle Valley’s January low is 31° and its July high 89°.
Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value.
How Middle Valley 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 Middle Valley averaged 0.9° warmer than the 1900s. The biggest change is in December (+1.9°). The shift is smaller than in 78% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Middle Valley’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 34° to 53°. July is the most reliable, staying within 7°.
Common questions about Middle Valley’s climate
What is the coldest month in Middle Valley?
January, with a typical high of 50° and a low of 31°.
What is the hottest month in Middle Valley?
July, with a typical high of 89° and a low of 68°. About 17 days a year reach 90°.
How much snow does Middle Valley get?
About 4 inches in a normal winter, most of it in February.
When is the first frost in Middle Valley?
In half of years the first 32° night comes by October 29, and the last spring frost by April 7.
What is the rainiest month in Middle Valley?
December, with 5.3 inches of rain and melted snow. The year totals 55 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Middle Valley itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Soddy Daisy-mowbray Mtn, TN (7 mi) away. Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000.