Climate · Fontana Dam

Fontana Dam, NC climate

Fontana Dam has chilly winters and warm summers, with plenty of rain. A typical July afternoon reaches 85°, a January night drops to 27°, and about 9 inches of snow falls in a normal winter.

NOAA 1991-2020 climate normals Updated once a decade
July high
85°
71st coolest of 773 North Carolina towns
January low
27°
69th coldest of 773 North Carolina towns
Rain + melted snow
57 in
101st wettest of 773 North Carolina towns
Snow a winter
9 in
41st snowiest of 763 North Carolina towns
A normal year

What a year in Fontana Dam feels like

Winter

50° / 29°
Typical high / low · 4 days with an inch or more of snow

Spring

68° / 43°
Typical high / low · Last frost around Apr 17

Summer

84° / 61°
Typical high / low · 35 days reach 90° in a normal year

Fall

70° / 45°
Typical high / low · First frost around Oct 27
Best months to be outsideAprMayJunSepOctHighs of 62–84° and lows of 40° or more
Month by month

Fontana Dam 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
January48°27°5.3" 3.2"143 29° – 44°
February52°30°5.1" 3.5"132 31° – 50°
March60°36°5.5" 0.9"141 40° – 57°
April69°43°4.6" 0.2"130 52° – 60°
May76°51°4.3" 0140 58° – 68°
June82°59°5.4" 0150 67° – 75°
July85°63°4.6" 0160 71° – 77°
August85°62°4.5" 0140 69° – 78°
September80°56°4.3" 0100 64° – 73°
October70°44°3.5" 0100 54° – 62°
November59°34°4.6" 0.3"110 41° – 52°
December51°30°5.3" 1.3"141 30° – 51°
Year68°45°56.8"9.4"1578

“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 Fontana Dam

Fontana Dam gets 57 inches of rain and melted snow a year. March is the wettest month and October the driest. Rain or snow falls on about 157 days a year. Snow covers the ground about 8 days of the year.

57 in
Rain + melted snow a year
More rain than 96% of U.S. towns
9 in
Snow in a normal winter
Less snow than 73% of U.S. towns
8 days
With 1"+ of snow on the ground
Fewer than 70% of U.S. towns

Rain + melted snow by month

Inches of water
5.5"

Snowfall by month

Inches of snow
3.5"
Frost & the growing season

About 193 frost-free days a year

In half of years the last 32° night comes by April 17 and the first one by October 27. That leaves about 193 frost-free days for gardens, longer than 67% of U.S. towns.

82
nights at or below 32° in a normal year
<1
nights below 0° in a normal year
35
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 Fontana Dam

Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Fontana Dam, 81% of that work is heating and 19% is cooling, so the furnace matters far more than the air conditioner.

81%heating
3,920 heating degree daysLess heating than 79% of U.S. towns
943 cooling degree daysMore cooling than 57% 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 Fontana Dam compares

Summer heat85° July high
Hotter than 53% of U.S. towns71st coolest of 773 North Carolina towns
Winter cold27° January low
Milder than 78% of U.S. towns69th coldest of 773 North Carolina towns
Precipitation57" a year
Wetter than 96% of U.S. towns101st wettest of 773 North Carolina towns
Snow9" a winter
Less snow than 73% of U.S. towns41st snowiest of 763 North Carolina towns
Growing season193 frost-free days
Longer than 67% of U.S. towns93rd shortest of 773 North Carolina towns
North Carolina climate rankingsSnowiest, mildest, wettest and more in NC →

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

Then and now

Warmer than it used to be

+0.6°1991–2020 average vs. the 20th century (1901–2000)

The last 30 years in Fontana Dam averaged 0.6° warmer than the 1900s. The biggest change is in December (+1.7°). The shift is smaller than in 93% of U.S. towns.

❄️ Winter+1.1° now 40°, was 39°
🌷 Spring+0.6° now 56°, was 55°
☀️ Summer+0.3° now 73°, was 72°
🍂 Fall+0.5° now 57°, was 57°

Change by month1991–2020 average minus 1901–2000 average, at Fontana Dam’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 30° to 51°. July is the most reliable, staying within 7°.

Coldest to warmest month in 30 yearsNormal
Questions

Common questions about Fontana Dam’s climate

What is the coldest month in Fontana Dam?

January, with a typical high of 48° and a low of 27°.

What is the hottest month in Fontana Dam?

July, with a typical high of 85° and a low of 63°. About 35 days a year reach 90°.

How much snow does Fontana Dam get?

About 9 inches in a normal winter, most of it in February.

When is the first frost in Fontana Dam?

In half of years the first 32° night comes by October 27, and the last spring frost by April 17.

What is the rainiest month in Fontana Dam?

March, with 5.5 inches of rain and melted snow. The year totals 57 inches.

Temperatures and rainfall come from NOAA’s gridded climate normals for Fontana Dam itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Townsend 5s, TN (12 mi, snow) and Tapoco, NC (6 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.

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