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Monthly climate in Altamont, Tennessee, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Altamont features a humid subtropical climate (Cfa).Temperatures typically range between 5 °C (40 °F) and 25 °C (78 °F) through the year, but rarely can drop to -15 °C (6 °F) or can rise to as high as 35 °C (96 °F).The average annual precipitation amounts to about 1609 mm (63.3 inches) and receives 154 rainy days on the 1 mm (0.04 inches) threshold annually.Altamont enjoys an average of 2989 hours of sunshine throughout the year, and daylight varies from 9 hours 47 minutes to 14 hours 29 minutes per day.

Monthly average temperatures in Altamont, Tennessee, United States §

The warmest months in Altamont are June, July and August, with daily mean temperatures ranging from 23 to 25 °C (74 - 78 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 5 to 8 °C (40 - 46 °F) throughout the day. On average each year, Altamont experiences 125 days above 25 °C (77.0 °F) and 47 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Altamont, 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 23°C
(73°F)		 26°C
(78°F)		 27°C
(82°F)		 30°C
(86°F)		 32°C
(90°F)		 33°C
(91°F)		 35°C
(95°F)		 34°C
(93°F)		 35°C
(95°F)		 35°C
(96°F)		 25°C
(78°F)		 22°C
(72°F)
Mean maximum 20°C
(68°F)		 23°C
(73°F)		 24°C
(76°F)		 27°C
(82°F)		 31°C
(88°F)		 31°C
(89°F)		 34°C
(93°F)		 32°C
(90°F)		 32°C
(89°F)		 30°C
(86°F)		 23°C
(74°F)		 20°C
(69°F)
Average high 9°C
(48°F)		 13°C
(55°F)		 16°C
(62°F)		 20°C
(69°F)		 25°C
(77°F)		 28°C
(82°F)		 30°C
(86°F)		 29°C
(85°F)		 27°C
(81°F)		 22°C
(72°F)		 15°C
(59°F)		 12°C
(53°F)
Daily mean 5°C
(40°F)		 8°C
(46°F)		 11°C
(52°F)		 15°C
(58°F)		 20°C
(68°F)		 23°C
(74°F)		 25°C
(78°F)		 24°C
(76°F)		 22°C
(72°F)		 17°C
(62°F)		 9°C
(48°F)		 7°C
(45°F)
Average low 0°C
(33°F)		 3°C
(38°F)		 6°C
(43°F)		 9°C
(48°F)		 15°C
(60°F)		 19°C
(66°F)		 21°C
(70°F)		 20°C
(68°F)		 17°C
(64°F)		 12°C
(54°F)		 4°C
(39°F)		 3°C
(37°F)
Mean minimum -10°C
(14°F)		 -7°C
(20°F)		 -5°C
(23°F)		 -1°C
(31°F)		 6°C
(43°F)		 14°C
(57°F)		 17°C
(63°F)		 16°C
(60°F)		 11°C
(52°F)		 1°C
(35°F)		 -5°C
(24°F)		 -6°C
(21°F)
Minimum -15°C
(6°F)		 -10°C
(14°F)		 -8°C
(18°F)		 -2°C
(29°F)		 1°C
(34°F)		 9°C
(49°F)		 15°C
(60°F)		 14°C
(57°F)		 8°C
(46°F)		 -2°C
(28°F)		 -9°C
(17°F)		 -10°C
(14°F)

Compare climate in Altamont with other places

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

Monthly average precipitation in Altamont, Tennessee, United States §

Altamont usually has the most precipitation in February, March and April, with an average of 13 rainy days and 173 mm (6.8 inches) of precipitation per month.The driest months in Altamont are January, September and November. On average, 99 mm (3.9 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Altamont, 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) 108 (4.2) 178 (7.0) 183 (7.2) 157 (6.2) 126 (5.0) 127 (5.0) 126 (5.0) 144 (5.7) 116 (4.6) 124 (4.9) 74 (2.9) 145 (5.7)
Average precipitation days (≥ 1 mm) 11 15 14 12 14 13 17 18 10 10 8 12

Monthly sunshine hours in Altamont, Tennessee, United States §

The sunniest months in Altamont are June, July and August, when the sun shines an average of 10 hours 25 minutes a day.Least sunny months in Altamont: January, February and December receive an average of 5 hours 8 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Altamont, 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 145 153 222 263 303 313 328 317 279 264 227 169
Mean daily daylight hours 10h 3m 10h 54m 11h 59m 13h 6m 14h 2m 14h 29m 14h 14m 13h 25m 12h 20m 11h 14m 10h 16m 9h 47m

Solar UV radiation in Altamont, Tennessee, United States §

Altamont experiences the highest level of ultraviolet (UV) radiation in May, June and July, when the maximum UV index can reach values of 11 - 11, which corresponds to the Extreme category of sun exposure.January, November and December are in the Moderate exposure category. In these months, the maximum values of the UV index do not exceed 5. For more detailed information, check out our hourly Altamont UV Index data.

Average daily maximum UV levels by month for Altamont, 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 10 11 11 11 10 9 7 5 3