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Monthly climate in Roan Mountain, Tennessee, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Roan Mountain features a oceanic climate (Cfb).Temperatures typically range between 2 °C (35 °F) and 21 °C (71 °F) through the year, but rarely can drop to -18 °C (1 °F) or can rise to as high as 30 °C (87 °F).The average annual precipitation amounts to about 1461 mm (57.5 inches) and receives 169 rainy days on the 1 mm (0.04 inches) threshold annually.Roan Mountain enjoys an average of 3144 hours of sunshine throughout the year, and daylight varies from 9 hours 43 minutes to 14 hours 34 minutes per day.

Monthly average temperatures in Roan Mountain, Tennessee, United States §

The warmest months in Roan Mountain are June, July and August, with daily mean temperatures ranging from 19 to 21 °C (67 - 71 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 2 to 5 °C (35 - 41 °F) throughout the day. On average each year, Roan Mountain experiences 59 days above 25 °C (77.0 °F) and 76 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Roan Mountain, Tennessee, United States.Generated using Copernicus Climate Change Service information.Data for period from January 2017 to June 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum 22°C
(72°F)		 24°C
(76°F)		 28°C
(82°F)		 27°C
(81°F)		 28°C
(83°F)		 29°C
(84°F)		 30°C
(87°F)		 29°C
(84°F)		 29°C
(84°F)		 29°C
(85°F)		 21°C
(71°F)		 20°C
(69°F)
Mean maximum 17°C
(63°F)		 20°C
(69°F)		 23°C
(73°F)		 25°C
(77°F)		 26°C
(80°F)		 28°C
(83°F)		 29°C
(85°F)		 28°C
(83°F)		 27°C
(82°F)		 26°C
(80°F)		 21°C
(70°F)		 17°C
(63°F)
Average high 6°C
(43°F)		 10°C
(50°F)		 12°C
(55°F)		 17°C
(63°F)		 21°C
(70°F)		 24°C
(75°F)		 26°C
(79°F)		 25°C
(77°F)		 23°C
(74°F)		 19°C
(66°F)		 12°C
(53°F)		 8°C
(47°F)
Daily mean 2°C
(35°F)		 5°C
(41°F)		 7°C
(45°F)		 11°C
(53°F)		 16°C
(61°F)		 19°C
(67°F)		 21°C
(71°F)		 21°C
(69°F)		 18°C
(66°F)		 14°C
(57°F)		 6°C
(43°F)		 4°C
(39°F)
Average low -2°C
(28°F)		 0°C
(33°F)		 2°C
(36°F)		 6°C
(43°F)		 12°C
(53°F)		 15°C
(59°F)		 17°C
(64°F)		 17°C
(62°F)		 14°C
(58°F)		 9°C
(49°F)		 1°C
(34°F)		 -0°C
(32°F)
Mean minimum -15°C
(6°F)		 -10°C
(15°F)		 -10°C
(15°F)		 -3°C
(26°F)		 2°C
(37°F)		 10°C
(50°F)		 12°C
(55°F)		 12°C
(55°F)		 8°C
(47°F)		 -1°C
(30°F)		 -7°C
(20°F)		 -9°C
(15°F)
Minimum -18°C
(1°F)		 -13°C
(9°F)		 -17°C
(2°F)		 -6°C
(21°F)		 -0°C
(31°F)		 6°C
(42°F)		 10°C
(51°F)		 10°C
(51°F)		 4°C
(39°F)		 -4°C
(25°F)		 -11°C
(12°F)		 -14°C
(6°F)

Compare climate in Roan Mountain with other places

Compare temperature, precipitation, sunshine, UV index in Roan Mountain, Tennessee, United States with other places around the world.

Monthly average precipitation in Roan Mountain, Tennessee, United States §

Roan Mountain usually has the most precipitation in February, April and June, with an average of 15 rainy days and 141 mm (5.5 inches) of precipitation per month.The driest months in Roan Mountain are January, July and November. On average, 96 mm (3.8 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Roan Mountain, Tennessee, United States.Generated using Copernicus Climate Change Service information.Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Average precipitation mm (inches) 96 (3.8) 145 (5.7) 132 (5.2) 145 (5.7) 129 (5.1) 133 (5.2) 107 (4.2) 125 (4.9) 112 (4.4) 131 (5.2) 84 (3.3) 123 (4.8)
Average precipitation days (≥ 1 mm) 13 15 15 14 16 17 18 16 11 11 11 12

Monthly sunshine hours in Roan Mountain, Tennessee, United States §

The sunniest months in Roan Mountain are June, July and August, when the sun shines an average of 10 hours 53 minutes a day.Least sunny months in Roan Mountain: January, February and December receive an average of 5 hours 44 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Roan Mountain, Tennessee, United States.Generated using Copernicus Atmosphere Monitoring Service information.Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Mean monthly sunshine hours 155 181 246 269 310 321 357 323 289 270 234 185
Mean daily daylight hours 9h 59m 10h 52m 11h 59m 13h 8m 14h 5m 14h 34m 14h 18m 13h 27m 12h 21m 11h 13m 10h 13m 9h 43m

Solar UV radiation in Roan Mountain, Tennessee, United States §

Roan Mountain experiences the highest level of ultraviolet (UV) radiation in April, May and July, when the maximum UV index can reach values of 11 - 11, which corresponds to the Extreme category of sun exposure.January, February and December are in the Moderate / High exposure category. In these months, the maximum values of the UV index do not exceed 6. For more detailed information, check out our hourly Roan Mountain UV Index data.

Average daily maximum UV levels by month for Roan Mountain, Tennessee, United States.Generated using Copernicus Atmosphere Monitoring Service information.Data for period from January 2022 to January 2023.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
UV Index (month maximum) 4 6 8 11 11 11 11 10 10 8 6 3