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Monthly climate in Castalian Springs, Tennessee, United States

Last updated: March 2, 2024

Under the Köppen–Geiger climate classification Castalian Springs features a humid subtropical climate (Cfa). Temperatures typically range between 4 °C (40 °F) and 27 °C (80 °F) through the year, but rarely can drop to -15 °C (5 °F) or can rise to as high as 37 °C (98 °F). The average annual precipitation amounts to about 1605 mm (63.2 inches) and receives 137 rainy days on the 1 mm (0.04 inches) threshold annually. Castalian Springs enjoys an average of 2928 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 Castalian Springs, Tennessee, United States §

The warmest months in Castalian Springs are June, July and August, with daily mean temperatures ranging from 24 to 27 °C (76 - 80 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 4 to 7 °C (40 - 45 °F) throughout the day. On average each year, Castalian Springs experiences 130 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 Castalian Springs, 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)		 27°C
(80°F)		 27°C
(82°F)		 31°C
(89°F)		 34°C
(93°F)		 34°C
(94°F)		 36°C
(97°F)		 36°C
(98°F)		 36°C
(97°F)		 37°C
(98°F)		 28°C
(82°F)		 23°C
(73°F)
Mean maximum 20°C
(68°F)		 24°C
(75°F)		 25°C
(78°F)		 29°C
(84°F)		 32°C
(90°F)		 33°C
(92°F)		 35°C
(96°F)		 34°C
(93°F)		 33°C
(92°F)		 31°C
(88°F)		 23°C
(74°F)		 20°C
(69°F)
Average high 8°C
(47°F)		 12°C
(54°F)		 16°C
(61°F)		 20°C
(69°F)		 26°C
(79°F)		 29°C
(85°F)		 31°C
(89°F)		 30°C
(87°F)		 28°C
(83°F)		 23°C
(73°F)		 14°C
(58°F)		 12°C
(53°F)
Daily mean 4°C
(40°F)		 7°C
(45°F)		 11°C
(52°F)		 15°C
(59°F)		 21°C
(70°F)		 24°C
(76°F)		 27°C
(80°F)		 25°C
(78°F)		 23°C
(74°F)		 17°C
(63°F)		 9°C
(48°F)		 7°C
(45°F)
Average low 0°C
(33°F)		 2°C
(37°F)		 6°C
(43°F)		 9°C
(49°F)		 16°C
(61°F)		 20°C
(68°F)		 22°C
(73°F)		 21°C
(70°F)		 18°C
(65°F)		 12°C
(54°F)		 4°C
(39°F)		 2°C
(37°F)
Mean minimum -10°C
(14°F)		 -8°C
(18°F)		 -5°C
(23°F)		 0°C
(33°F)		 7°C
(45°F)		 15°C
(58°F)		 18°C
(65°F)		 16°C
(61°F)		 11°C
(53°F)		 3°C
(37°F)		 -4°C
(25°F)		 -6°C
(21°F)
Minimum -15°C
(5°F)		 -12°C
(11°F)		 -10°C
(15°F)		 -1°C
(30°F)		 3°C
(38°F)		 11°C
(52°F)		 17°C
(63°F)		 14°C
(58°F)		 8°C
(47°F)		 -0°C
(32°F)		 -8°C
(18°F)		 -10°C
(14°F)

Compare climate in Castalian Springs with other places

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

Monthly average precipitation in Castalian Springs, Tennessee, United States §

Castalian Springs usually has the most precipitation in February, March and December, with an average of 13 rainy days and 165 mm (6.5 inches) of precipitation per month. The driest months in Castalian Springs are January, August and November. On average, 104 mm (4.1 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Castalian Springs, 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) 106 (4.2) 187 (7.4) 157 (6.2) 145 (5.7) 119 (4.7) 149 (5.9) 122 (4.8) 118 (4.7) 120 (4.7) 141 (5.6) 88 (3.5) 151 (6.0)
Average precipitation days (≥ 1 mm) 10 14 14 11 13 12 13 13 8 10 8 11

Monthly sunshine hours in Castalian Springs, Tennessee, United States §

The sunniest months in Castalian Springs are June, July and August, when the sun shines an average of 10 hours 25 minutes a day. Least sunny months in Castalian Springs: January, February and December receive an average of 5 hours 3 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Castalian Springs, 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 139 147 214 247 293 318 332 307 277 259 216 173
Mean daily daylight hours 9h 58m 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 Castalian Springs, Tennessee, United States §

Castalian Springs experiences the highest level of ultraviolet (UV) radiation in April, June and July, when the maximum UV index can reach values of 10 - 11, which corresponds to the Very High / 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 Castalian Springs UV Index data.

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

Detailed Monthly Weather Insights for Castalian Springs, Tennessee, United States

Discover in-depth weather details for every month in Castalian Springs. Click through the links below for comprehensive overviews of temperature trends, precipitation levels, sunshine hours, and solar UV radiation specifics. Whether planning a visit or simply curious about Castalian Springs's climate nuances, these monthly breakdowns provide the information you need for an informed understanding of what to expect throughout the year.

Each link leads to a detailed account of the typical weather conditions for that month, providing both locals and tourists with vital information to plan their daily activities, wardrobe, and travel itineraries accordingly.