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Monthly climate in Grayson, Georgia, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Grayson features a humid subtropical climate (Cfa).Temperatures typically range between 7 °C (45 °F) and 26 °C (79 °F) through the year, but rarely can drop to -11 °C (13 °F) or can rise to as high as 37 °C (98 °F).The average annual precipitation amounts to about 1529 mm (60.2 inches) and receives 143 rainy days on the 1 mm (0.04 inches) threshold annually.Grayson enjoys an average of 3090 hours of sunshine throughout the year, and daylight varies from 9 hours 54 minutes to 14 hours 21 minutes per day.

Monthly average temperatures in Grayson, Georgia, United States §

The warmest months in Grayson are June, July and August, with daily mean temperatures ranging from 24 to 26 °C (76 - 79 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 7 to 10 °C (45 - 51 °F) throughout the day. On average each year, Grayson experiences 140 days above 25 °C (77.0 °F) and 25 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Grayson, 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)		 26°C
(80°F)		 29°C
(84°F)		 29°C
(84°F)		 34°C
(93°F)		 33°C
(92°F)		 34°C
(93°F)		 35°C
(95°F)		 35°C
(96°F)		 37°C
(98°F)		 26°C
(79°F)		 23°C
(74°F)
Mean maximum 22°C
(71°F)		 25°C
(76°F)		 26°C
(80°F)		 28°C
(82°F)		 32°C
(90°F)		 32°C
(89°F)		 33°C
(92°F)		 33°C
(92°F)		 33°C
(91°F)		 31°C
(88°F)		 25°C
(76°F)		 21°C
(71°F)
Average high 12°C
(54°F)		 16°C
(60°F)		 18°C
(65°F)		 22°C
(72°F)		 26°C
(80°F)		 29°C
(84°F)		 31°C
(88°F)		 30°C
(87°F)		 29°C
(84°F)		 24°C
(75°F)		 17°C
(63°F)		 14°C
(57°F)
Daily mean 7°C
(45°F)		 10°C
(51°F)		 13°C
(56°F)		 16°C
(62°F)		 21°C
(71°F)		 24°C
(76°F)		 26°C
(79°F)		 26°C
(78°F)		 23°C
(74°F)		 18°C
(65°F)		 11°C
(52°F)		 9°C
(48°F)
Average low 3°C
(37°F)		 5°C
(42°F)		 8°C
(46°F)		 11°C
(52°F)		 16°C
(62°F)		 20°C
(69°F)		 22°C
(72°F)		 22°C
(71°F)		 19°C
(66°F)		 14°C
(57°F)		 6°C
(43°F)		 4°C
(40°F)
Mean minimum -6°C
(21°F)		 -3°C
(27°F)		 -3°C
(27°F)		 2°C
(36°F)		 8°C
(48°F)		 16°C
(60°F)		 19°C
(66°F)		 18°C
(65°F)		 13°C
(56°F)		 4°C
(40°F)		 -2°C
(29°F)		 -4°C
(26°F)
Minimum -11°C
(13°F)		 -5°C
(24°F)		 -5°C
(23°F)		 0°C
(33°F)		 5°C
(41°F)		 13°C
(56°F)		 17°C
(63°F)		 16°C
(62°F)		 10°C
(50°F)		 0°C
(33°F)		 -5°C
(24°F)		 -6°C
(21°F)

Compare climate in Grayson with other places

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

Monthly average precipitation in Grayson, Georgia, United States §

Grayson usually has the most precipitation in February, August and October, with an average of 12 rainy days and 150 mm (5.9 inches) of precipitation per month.The driest months in Grayson are January, September and November. On average, 101 mm (4.0 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Grayson, 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) 109 (4.3) 155 (6.1) 138 (5.4) 123 (4.8) 120 (4.7) 135 (5.3) 119 (4.7) 153 (6.0) 115 (4.5) 143 (5.6) 80 (3.2) 138 (5.4)
Average precipitation days (≥ 1 mm) 9 13 13 9 11 16 18 16 9 9 9 11

Monthly sunshine hours in Grayson, Georgia, United States §

The sunniest months in Grayson are June, July and August, when the sun shines an average of 10 hours 26 minutes a day.Least sunny months in Grayson: January, February and December receive an average of 5 hours 46 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Grayson, 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 165 168 233 276 306 309 338 311 289 262 236 190
Mean daily daylight hours 10h 9m 10h 58m 11h 59m 13h 2m 13h 56m 14h 21m 14h 7m 13h 20m 12h 20m 11h 17m 10h 22m 9h 54m

Solar UV radiation in Grayson, Georgia, United States §

Grayson experiences the highest level of ultraviolet (UV) radiation in April, May 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 Grayson UV Index data.

Average daily maximum UV levels by month for Grayson, 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 11 11 11 11 10 9 8 6 4