Climate · Mascot

Mascot, TN climate

Mascot 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 decade
July high
88°
169th coolest of 504 Tennessee towns
January low
29°
234th coldest of 504 Tennessee towns
Rain + melted snow
52 in
76th driest of 504 Tennessee towns
Snow a winter
4 in
210th snowiest of 503 Tennessee towns
A normal year

What a year in Mascot feels like

Winter

50° / 31°
Typical high / low · 1 days with an inch or more of snow

Spring

70° / 46°
Typical high / low · Last frost around Apr 6

Summer

87° / 66°
Typical high / low · 53 days reach 90° in a normal year

Fall

71° / 48°
Typical high / low · First frost around Oct 29
Best months to be outsideAprMaySepOctHighs of 62–84° and lows of 40° or more
Month by month

Mascot weather by month

Average highs, lows, rain and snow for every month, from NOAA’s 1991–2020 normals.

MonthHighLowRain + meltSnowWet daysSnow on ground30-yr range
January47°29°4.7" 1.5"111 30° – 45°
February52°32°4.9" 1.0"111 32° – 49°
March61°38°5.0" 0.9"120 43° – 59°
April71°46°4.7" 0110 53° – 63°
May79°55°3.8" 0110 61° – 72°
June85°63°4.3" 0110 71° – 78°
July88°67°4.6" 0110 74° – 81°
August87°66°3.5" 090 73° – 82°
September82°60°3.7" 080 67° – 77°
October72°47°3.3" 080 56° – 64°
November60°37°4.1" 090 42° – 53°
December50°32°5.4" 0.2"120 32° – 52°
Year70°48°51.9"3.6"1232

“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 & snow

Rain and snow in Mascot

Mascot 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.

52 in
Rain + melted snow a year
More rain than 91% of U.S. towns
4 in
Snow in a normal winter
Less snow than 80% of U.S. towns
2 days
With 1"+ of snow on the ground
Fewer than 77% of U.S. towns

Rain + melted snow by month

Inches of water
5.4"

Snowfall by month

Inches of snow
1.5"
Frost & the growing season

About 205 frost-free days a year

In half of years the last 32° night comes by April 6 and the first one by October 29. That leaves about 205 frost-free days for gardens, longer than 75% of U.S. towns.

86
nights at or below 32° in a normal year
<1
nights below 0° in a normal year
53
days that reach 90° in a normal year

Freezing nights by month

Average nights at or below 32°

90° days by month

Average days at 90° or more
Heating & cooling

Heating and cooling a home in Mascot

Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Mascot, 71% of that work is heating and 29% is cooling.

71%heating
3,695 heating degree daysLess heating than 81% of U.S. towns
1,539 cooling degree daysMore cooling than 80% of U.S. towns

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.

Compared with other towns

How Mascot compares

Summer heat88° July high
Hotter than 71% of U.S. towns169th coolest of 504 Tennessee towns
Winter cold29° January low
Milder than 79% of U.S. towns234th coldest of 504 Tennessee towns
Precipitation52" a year
Wetter than 91% of U.S. towns76th driest of 504 Tennessee towns
Snow4" a winter
Less snow than 80% of U.S. towns210th snowiest of 503 Tennessee towns
Growing season205 frost-free days
Longer than 75% of U.S. towns223rd shortest of 504 Tennessee towns

Compared with every U.S. town and city on TownTapestry, each counted once.

Then and now

Warmer than it used to be

+0.9°1991–2020 average vs. the 20th century (1901–2000)

The last 30 years in Mascot averaged 0.9° warmer than the 1900s. The biggest change is in December (+1.9°). The shift is smaller than in 77% of U.S. towns.

❄️ Winter+1.4° now 40°, was 39°
🌷 Spring+0.8° now 58°, was 57°
☀️ Summer+0.6° now 76°, was 76°
🍂 Fall+0.8° now 60°, was 59°

Change by month1991–2020 average minus 1901–2000 average, at Mascot’s spot on NOAA’s grid

Year to year

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°.

Coldest to warmest month in 30 yearsNormal
Questions

Common questions about Mascot’s climate

What is the coldest month in Mascot?

January, with a typical high of 47° and a low of 29°.

What is the hottest month in Mascot?

July, with a typical high of 88° and a low of 67°. About 53 days a year reach 90°.

How much snow does Mascot get?

About 4 inches in a normal winter, most of it in January.

When is the first frost in Mascot?

In half of years the first 32° night comes by October 29, and the last spring frost by April 6.

What is the rainiest month in Mascot?

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 Mascot itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Sevierville, TN (13 mi) away. Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000.

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