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Monthly climate in Marion, South Carolina, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Marion features a humid subtropical climate (Cfa).Temperatures typically range between 9 °C (48 °F) and 27 °C (81 °F) through the year, but rarely can drop to -10 °C (14 °F) or can rise to as high as 38 °C (101 °F).The average annual precipitation amounts to about 1326 mm (52.2 inches) and receives 129 rainy days on the 1 mm (0.04 inches) threshold annually.Marion enjoys an average of 3184 hours of sunshine throughout the year, and daylight varies from 9 hours 53 minutes to 14 hours 23 minutes per day.

Monthly average temperatures in Marion, South Carolina, United States §

The warmest months in Marion are June, July and August, with daily mean temperatures ranging from 25 to 27 °C (78 - 81 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 9 to 12 °C (48 - 53 °F) throughout the day. On average each year, Marion experiences 168 days above 25 °C (77.0 °F) and 24 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Marion, South Carolina, 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 27°C
(80°F)		 29°C
(85°F)		 31°C
(87°F)		 32°C
(90°F)		 37°C
(99°F)		 37°C
(99°F)		 38°C
(100°F)		 38°C
(101°F)		 36°C
(97°F)		 38°C
(100°F)		 30°C
(87°F)		 27°C
(80°F)
Mean maximum 24°C
(75°F)		 27°C
(80°F)		 29°C
(84°F)		 31°C
(88°F)		 35°C
(95°F)		 34°C
(94°F)		 36°C
(97°F)		 35°C
(96°F)		 35°C
(94°F)		 32°C
(91°F)		 28°C
(82°F)		 24°C
(76°F)
Average high 14°C
(58°F)		 18°C
(64°F)		 20°C
(68°F)		 25°C
(77°F)		 29°C
(84°F)		 30°C
(87°F)		 32°C
(91°F)		 31°C
(89°F)		 30°C
(86°F)		 26°C
(79°F)		 19°C
(66°F)		 16°C
(61°F)
Daily mean 9°C
(48°F)		 12°C
(53°F)		 14°C
(57°F)		 18°C
(65°F)		 23°C
(74°F)		 25°C
(78°F)		 27°C
(81°F)		 27°C
(80°F)		 25°C
(77°F)		 20°C
(69°F)		 12°C
(55°F)		 10°C
(51°F)
Average low 4°C
(39°F)		 6°C
(44°F)		 8°C
(47°F)		 12°C
(54°F)		 18°C
(64°F)		 21°C
(70°F)		 23°C
(73°F)		 23°C
(73°F)		 20°C
(68°F)		 15°C
(60°F)		 7°C
(45°F)		 5°C
(41°F)
Mean minimum -6°C
(21°F)		 -4°C
(25°F)		 -4°C
(25°F)		 2°C
(36°F)		 8°C
(46°F)		 15°C
(59°F)		 18°C
(66°F)		 18°C
(65°F)		 13°C
(56°F)		 5°C
(42°F)		 -2°C
(28°F)		 -5°C
(24°F)
Minimum -10°C
(14°F)		 -6°C
(22°F)		 -5°C
(23°F)		 -1°C
(30°F)		 5°C
(41°F)		 12°C
(53°F)		 16°C
(61°F)		 16°C
(61°F)		 10°C
(50°F)		 2°C
(36°F)		 -4°C
(26°F)		 -6°C
(21°F)

Compare climate in Marion with other places

Compare temperature, precipitation, sunshine, UV index in Marion, South Carolina, United States with other places around the world.

Monthly average precipitation in Marion, South Carolina, United States §

Marion usually has the most precipitation in June, August and September, with an average of 14 rainy days and 156 mm (6.2 inches) of precipitation per month.The driest months in Marion are January, March and October. On average, 65 mm (2.6 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Marion, South Carolina, 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) 76 (3.0) 94 (3.7) 66 (2.6) 94 (3.7) 117 (4.6) 144 (5.7) 144 (5.7) 163 (6.4) 162 (6.4) 53 (2.1) 81 (3.2) 132 (5.2)
Average precipitation days (≥ 1 mm) 8 10 9 7 9 15 17 17 10 8 9 10

Monthly sunshine hours in Marion, South Carolina, United States §

The sunniest months in Marion are May, July and August, when the sun shines an average of 10 hours 21 minutes a day.Least sunny months in Marion: January, February and December receive an average of 6 hours 11 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Marion, South Carolina, 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 173 184 250 288 315 306 337 310 295 277 238 205
Mean daily daylight hours 10h 8m 10h 57m 11h 59m 13h 3m 13h 57m 14h 23m 14h 9m 13h 21m 12h 20m 11h 16m 10h 21m 9h 53m

Solar UV radiation in Marion, South Carolina, United States §

Marion 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 / 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 Marion UV Index data.

Average daily maximum UV levels by month for Marion, South Carolina, 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 7 8 10 11 11 11 10 9 8 6 4