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Monthly climate in Mountain City, Tennessee, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Mountain City features a oceanic climate (Cfb).Temperatures typically range between 1 °C (35 °F) and 22 °C (71 °F) through the year, but rarely can drop to -18 °C (0 °F) or can rise to as high as 30 °C (87 °F).The average annual precipitation amounts to about 1412 mm (55.6 inches) and receives 163 rainy days on the 1 mm (0.04 inches) threshold annually.Mountain City enjoys an average of 3102 hours of sunshine throughout the year, and daylight varies from 9 hours 41 minutes to 14 hours 35 minutes per day.

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

The warmest months in Mountain City are June, July and August, with daily mean temperatures ranging from 19 to 22 °C (67 - 71 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 1 to 5 °C (35 - 41 °F) throughout the day. On average each year, Mountain City experiences 63 days above 25 °C (77.0 °F) and 80 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Mountain City, 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 21°C
(70°F)		 24°C
(75°F)		 27°C
(81°F)		 27°C
(81°F)		 28°C
(83°F)		 29°C
(85°F)		 30°C
(87°F)		 30°C
(86°F)		 29°C
(85°F)		 30°C
(86°F)		 21°C
(70°F)		 20°C
(67°F)
Mean maximum 17°C
(62°F)		 20°C
(68°F)		 22°C
(73°F)		 25°C
(77°F)		 27°C
(80°F)		 28°C
(83°F)		 30°C
(85°F)		 29°C
(84°F)		 27°C
(82°F)		 27°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
(80°F)		 25°C
(78°F)		 23°C
(75°F)		 19°C
(66°F)		 11°C
(53°F)		 8°C
(47°F)
Daily mean 1°C
(35°F)		 5°C
(41°F)		 7°C
(45°F)		 11°C
(52°F)		 16°C
(61°F)		 19°C
(67°F)		 22°C
(71°F)		 21°C
(69°F)		 18°C
(65°F)		 13°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
(63°F)		 17°C
(62°F)		 14°C
(58°F)		 9°C
(48°F)		 1°C
(34°F)		 -0°C
(31°F)
Mean minimum -15°C
(5°F)		 -10°C
(15°F)		 -8°C
(17°F)		 -4°C
(26°F)		 2°C
(36°F)		 10°C
(50°F)		 12°C
(54°F)		 12°C
(54°F)		 8°C
(46°F)		 -1°C
(30°F)		 -7°C
(20°F)		 -10°C
(14°F)
Minimum -18°C
(0°F)		 -14°C
(7°F)		 -11°C
(12°F)		 -6°C
(22°F)		 -1°C
(30°F)		 6°C
(44°F)		 11°C
(51°F)		 10°C
(51°F)		 3°C
(38°F)		 -4°C
(26°F)		 -10°C
(14°F)		 -14°C
(7°F)

Compare climate in Mountain City with other places

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

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

Mountain City usually has the most precipitation in February, April and May, with an average of 14 rainy days and 139 mm (5.5 inches) of precipitation per month.The driest months in Mountain City are January, July and November. On average, 90 mm (3.5 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Mountain City, 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) 95 (3.7) 142 (5.6) 123 (4.8) 144 (5.7) 132 (5.2) 130 (5.1) 95 (3.8) 119 (4.7) 111 (4.4) 128 (5.0) 79 (3.1) 115 (4.5)
Average precipitation days (≥ 1 mm) 13 15 15 13 16 17 15 14 11 11 11 12

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

The sunniest months in Mountain City are June, July and August, when the sun shines an average of 10 hours 46 minutes a day.Least sunny months in Mountain City: January, February and December receive an average of 5 hours 43 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Mountain City, 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 152 181 244 264 303 319 354 317 282 264 231 187
Mean daily daylight hours 9h 58m 10h 51m 11h 59m 13h 8m 14h 7m 14h 35m 14h 20m 13h 28m 12h 21m 11h 12m 10h 12m 9h 41m

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

Mountain City experiences the highest level of ultraviolet (UV) radiation in April, May and August, 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 Mountain City UV Index data.

Average daily maximum UV levels by month for Mountain City, 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 11 10 8 6 3