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Monthly climate in Jefferson, Georgia, United States

Last updated: March 2, 2024

Under the Köppen–Geiger climate classification Jefferson features a humid subtropical climate (Cfa). Temperatures typically range between 8 °C (46 °F) and 26 °C (80 °F) through the year, but rarely can drop to -9 °C (17 °F) or can rise to as high as 37 °C (98 °F). The average annual precipitation amounts to about 1437 mm (56.6 inches) and receives 138 rainy days on the 1 mm (0.04 inches) threshold annually. Jefferson enjoys an average of 3097 hours of sunshine throughout the year, and daylight varies from 9 hours 55 minutes to 14 hours 21 minutes per day.

Monthly average temperatures in Jefferson, Georgia, United States §

The warmest months in Jefferson are June, July and August, with daily mean temperatures ranging from 25 to 26 °C (77 - 80 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 8 to 11 °C (46 - 51 °F) throughout the day. On average each year, Jefferson experiences 147 days above 25 °C (77.0 °F) and 23 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Jefferson, Georgia, 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 24°C
(76°F)		 27°C
(81°F)		 29°C
(85°F)		 30°C
(86°F)		 35°C
(95°F)		 35°C
(95°F)		 35°C
(95°F)		 35°C
(95°F)		 35°C
(96°F)		 37°C
(98°F)		 26°C
(79°F)		 24°C
(76°F)
Mean maximum 22°C
(73°F)		 25°C
(78°F)		 27°C
(81°F)		 29°C
(84°F)		 33°C
(92°F)		 33°C
(91°F)		 34°C
(94°F)		 34°C
(94°F)		 33°C
(92°F)		 32°C
(90°F)		 25°C
(77°F)		 22°C
(72°F)
Average high 13°C
(55°F)		 16°C
(61°F)		 19°C
(66°F)		 23°C
(73°F)		 27°C
(81°F)		 30°C
(86°F)		 32°C
(89°F)		 31°C
(88°F)		 29°C
(85°F)		 25°C
(76°F)		 18°C
(64°F)		 14°C
(58°F)
Daily mean 8°C
(46°F)		 11°C
(51°F)		 13°C
(56°F)		 17°C
(63°F)		 22°C
(71°F)		 25°C
(77°F)		 26°C
(80°F)		 26°C
(79°F)		 24°C
(75°F)		 19°C
(66°F)		 11°C
(53°F)		 9°C
(49°F)
Average low 3°C
(38°F)		 6°C
(42°F)		 8°C
(47°F)		 11°C
(52°F)		 17°C
(62°F)		 20°C
(69°F)		 22°C
(72°F)		 22°C
(72°F)		 19°C
(67°F)		 14°C
(58°F)		 6°C
(43°F)		 5°C
(41°F)
Mean minimum -5°C
(23°F)		 -3°C
(27°F)		 -3°C
(27°F)		 2°C
(37°F)		 9°C
(48°F)		 16°C
(61°F)		 19°C
(67°F)		 18°C
(65°F)		 13°C
(56°F)		 5°C
(41°F)		 -2°C
(29°F)		 -4°C
(26°F)
Minimum -9°C
(17°F)		 -4°C
(25°F)		 -5°C
(23°F)		 1°C
(33°F)		 6°C
(42°F)		 14°C
(57°F)		 17°C
(63°F)		 17°C
(63°F)		 10°C
(50°F)		 1°C
(34°F)		 -3°C
(26°F)		 -5°C
(23°F)

Compare climate in Jefferson with other places

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

Monthly average precipitation in Jefferson, Georgia, United States §

Jefferson usually has the most precipitation in February, October and December, with an average of 11 rainy days and 135 mm (5.3 inches) of precipitation per month. The driest months in Jefferson are January, June and November. On average, 100 mm (3.9 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Jefferson, Georgia, 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) 140 (5.5) 116 (4.6) 122 (4.8) 126 (5.0) 113 (4.5) 115 (4.5) 132 (5.2) 120 (4.7) 134 (5.3) 80 (3.1) 132 (5.2)
Average precipitation days (≥ 1 mm) 9 13 12 9 11 15 17 15 9 10 8 10

Monthly sunshine hours in Jefferson, Georgia, United States §

The sunniest months in Jefferson are June, July and August, when the sun shines an average of 10 hours 27 minutes a day. Least sunny months in Jefferson: January, February and December receive an average of 5 hours 49 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Jefferson, Georgia, 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 167 168 234 276 305 310 340 311 288 264 236 193
Mean daily daylight hours 10h 10m 10h 58m 11h 59m 13h 2m 13h 56m 14h 21m 14h 7m 13h 20m 12h 20m 11h 17m 10h 22m 9h 55m

Solar UV radiation in Jefferson, Georgia, United States §

Jefferson 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 Jefferson UV Index data.

Average daily maximum UV levels by month for Jefferson, Georgia, 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

Detailed Monthly Weather Insights for Jefferson, Georgia, United States

Discover in-depth weather details for every month in Jefferson. 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 Jefferson'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.