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Monthly climate in Jamestown, Tennessee, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Jamestown features a humid subtropical climate (Cfa).Temperatures typically range between 4 °C (39 °F) and 25 °C (78 °F) through the year, but rarely can drop to -15 °C (5 °F) or can rise to as high as 36 °C (98 °F).The average annual precipitation amounts to about 1625 mm (64.0 inches) and receives 151 rainy days on the 1 mm (0.04 inches) threshold annually.Jamestown enjoys an average of 2939 hours of sunshine throughout the year, and daylight varies from 9 hours 42 minutes to 14 hours 35 minutes per day.

Monthly average temperatures in Jamestown, Tennessee, United States §

The warmest months in Jamestown 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 4 to 7 °C (39 - 44 °F) throughout the day. On average each year, Jamestown experiences 121 days above 25 °C (77.0 °F) and 53 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Jamestown, 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)		 26°C
(79°F)		 28°C
(82°F)		 30°C
(87°F)		 33°C
(92°F)		 34°C
(94°F)		 35°C
(96°F)		 36°C
(98°F)		 35°C
(95°F)		 35°C
(95°F)		 27°C
(80°F)		 23°C
(73°F)
Mean maximum 19°C
(67°F)		 23°C
(74°F)		 25°C
(78°F)		 28°C
(83°F)		 31°C
(88°F)		 32°C
(90°F)		 34°C
(93°F)		 33°C
(91°F)		 31°C
(89°F)		 30°C
(86°F)		 23°C
(74°F)		 20°C
(69°F)
Average high 8°C
(47°F)		 12°C
(53°F)		 16°C
(61°F)		 20°C
(68°F)		 25°C
(77°F)		 28°C
(82°F)		 30°C
(86°F)		 29°C
(84°F)		 27°C
(81°F)		 22°C
(72°F)		 14°C
(58°F)		 11°C
(53°F)
Daily mean 4°C
(39°F)		 7°C
(44°F)		 10°C
(51°F)		 14°C
(58°F)		 20°C
(68°F)		 23°C
(74°F)		 25°C
(78°F)		 24°C
(76°F)		 22°C
(72°F)		 16°C
(62°F)		 8°C
(47°F)		 6°C
(44°F)
Average low 0°C
(32°F)		 2°C
(36°F)		 5°C
(42°F)		 9°C
(48°F)		 15°C
(60°F)		 19°C
(66°F)		 21°C
(70°F)		 20°C
(68°F)		 17°C
(63°F)		 11°C
(53°F)		 3°C
(38°F)		 2°C
(36°F)
Mean minimum -11°C
(13°F)		 -8°C
(18°F)		 -6°C
(21°F)		 -1°C
(31°F)		 6°C
(43°F)		 13°C
(56°F)		 16°C
(62°F)		 15°C
(60°F)		 10°C
(50°F)		 1°C
(34°F)		 -5°C
(23°F)		 -7°C
(20°F)
Minimum -15°C
(5°F)		 -12°C
(12°F)		 -10°C
(15°F)		 -2°C
(28°F)		 1°C
(34°F)		 9°C
(48°F)		 15°C
(60°F)		 14°C
(57°F)		 6°C
(43°F)		 -2°C
(28°F)		 -9°C
(17°F)		 -11°C
(12°F)

Compare climate in Jamestown with other places

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

Monthly average precipitation in Jamestown, Tennessee, United States §

Jamestown usually has the most precipitation in February, March and April, with an average of 14 rainy days and 165 mm (6.5 inches) of precipitation per month.The driest months in Jamestown are January, September and November. On average, 98 mm (3.9 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Jamestown, 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) 100 (3.9) 188 (7.4) 152 (6.0) 155 (6.1) 141 (5.6) 142 (5.6) 137 (5.4) 138 (5.4) 121 (4.8) 133 (5.2) 74 (2.9) 144 (5.7)
Average precipitation days (≥ 1 mm) 11 15 14 13 13 13 15 16 10 10 9 12

Monthly sunshine hours in Jamestown, Tennessee, United States §

The sunniest months in Jamestown are June, July and August, when the sun shines an average of 10 hours 24 minutes a day.Least sunny months in Jamestown: January, February and December receive an average of 5 hours 0 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Jamestown, 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 137 150 219 251 297 313 332 312 276 260 218 167
Mean daily daylight hours 9h 59m 10h 51m 11h 59m 13h 8m 14h 6m 14h 35m 14h 19m 13h 28m 12h 21m 11h 12m 10h 12m 9h 42m

Solar UV radiation in Jamestown, Tennessee, United States §

Jamestown 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 Jamestown UV Index data.

Average daily maximum UV levels by month for Jamestown, 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) 3 6 7 10 11 11 11 10 9 7 5 3