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Monthly climate in Hanahan, South Carolina, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Hanahan features a humid subtropical climate (Cfa).Temperatures typically range between 10 °C (51 °F) and 27 °C (81 °F) through the year, but rarely can drop to -13 °C (8 °F) or can rise to as high as 39 °C (102 °F).The average annual precipitation amounts to about 1415 mm (55.7 inches) and receives 141 rainy days on the 1 mm (0.04 inches) threshold annually.Hanahan enjoys an average of 3217 hours of sunshine throughout the year, and daylight varies from 10 hours 0 minutes to 14 hours 16 minutes per day.

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

The warmest months in Hanahan are June, July and August, with daily mean temperatures ranging from 26 to 27 °C (79 - 81 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 10 to 13 °C (51 - 56 °F) throughout the day. On average each year, Hanahan experiences 174 days above 25 °C (77.0 °F) and 12 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Hanahan, 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
(84°F)		 32°C
(90°F)		 31°C
(89°F)		 39°C
(102°F)		 37°C
(98°F)		 36°C
(97°F)		 37°C
(99°F)		 35°C
(96°F)		 35°C
(95°F)		 30°C
(86°F)		 26°C
(80°F)
Mean maximum 25°C
(77°F)		 27°C
(81°F)		 29°C
(85°F)		 30°C
(86°F)		 34°C
(94°F)		 34°C
(94°F)		 35°C
(95°F)		 35°C
(95°F)		 34°C
(93°F)		 32°C
(89°F)		 28°C
(82°F)		 25°C
(77°F)
Average high 16°C
(61°F)		 19°C
(67°F)		 21°C
(70°F)		 24°C
(76°F)		 29°C
(84°F)		 31°C
(87°F)		 32°C
(89°F)		 31°C
(89°F)		 30°C
(86°F)		 26°C
(80°F)		 20°C
(68°F)		 17°C
(63°F)
Daily mean 10°C
(51°F)		 13°C
(56°F)		 15°C
(60°F)		 19°C
(66°F)		 23°C
(74°F)		 26°C
(79°F)		 27°C
(81°F)		 27°C
(81°F)		 25°C
(78°F)		 21°C
(70°F)		 14°C
(57°F)		 12°C
(53°F)
Average low 5°C
(42°F)		 8°C
(47°F)		 10°C
(50°F)		 14°C
(57°F)		 18°C
(66°F)		 22°C
(72°F)		 24°C
(75°F)		 24°C
(75°F)		 21°C
(71°F)		 17°C
(63°F)		 9°C
(48°F)		 7°C
(44°F)
Mean minimum -5°C
(23°F)		 -2°C
(29°F)		 -1°C
(30°F)		 4°C
(39°F)		 10°C
(50°F)		 17°C
(63°F)		 20°C
(69°F)		 21°C
(69°F)		 15°C
(60°F)		 8°C
(46°F)		 0°C
(32°F)		 -2°C
(29°F)
Minimum -13°C
(8°F)		 -4°C
(25°F)		 -4°C
(26°F)		 0°C
(33°F)		 8°C
(46°F)		 13°C
(56°F)		 19°C
(66°F)		 19°C
(67°F)		 12°C
(54°F)		 2°C
(37°F)		 -2°C
(29°F)		 -4°C
(24°F)

Compare climate in Hanahan with other places

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

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

Hanahan usually has the most precipitation in June, July and August, with an average of 20 rainy days and 179 mm (7.1 inches) of precipitation per month.The driest months in Hanahan are January, March and October. On average, 66 mm (2.6 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Hanahan, 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) 59 (2.3) 87 (3.4) 66 (2.6) 108 (4.2) 95 (3.7) 164 (6.5) 189 (7.4) 184 (7.3) 164 (6.4) 75 (2.9) 83 (3.3) 142 (5.6)
Average precipitation days (≥ 1 mm) 8 9 7 8 9 19 21 21 12 9 9 9

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

The sunniest months in Hanahan are May, July and August, when the sun shines an average of 10 hours 19 minutes a day.Least sunny months in Hanahan: January, February and December receive an average of 6 hours 25 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Hanahan, 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 178 196 260 292 324 300 333 301 295 280 244 208
Mean daily daylight hours 10h 14m 11h 0m 11h 59m 13h 0m 13h 51m 14h 16m 14h 2m 13h 17m 12h 19m 11h 18m 10h 26m 10h 0m

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

Hanahan experiences the highest level of ultraviolet (UV) radiation in May, July and August, 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 Hanahan UV Index data.

Average daily maximum UV levels by month for Hanahan, 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 11 9 8 6 4