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Monthly climate in Fort Knox, Kentucky, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Fort Knox features a humid subtropical climate (Cfa).Temperatures typically range between 2 °C (36 °F) and 26 °C (79 °F) through the year, but rarely can drop to -18 °C (1 °F) or can rise to as high as 36 °C (97 °F).The average annual precipitation amounts to about 1393 mm (54.9 inches) and receives 135 rainy days on the 1 mm (0.04 inches) threshold annually.Fort Knox enjoys an average of 2931 hours of sunshine throughout the year, and daylight varies from 9 hours 33 minutes to 14 hours 44 minutes per day.

Monthly average temperatures in Fort Knox, Kentucky, United States §

The warmest months in Fort Knox are June, July and August, with daily mean temperatures ranging from 24 to 26 °C (75 - 79 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 2 to 5 °C (36 - 42 °F) throughout the day. On average each year, Fort Knox experiences 121 days above 25 °C (77.0 °F) and 61 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Fort Knox, Kentucky, 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 20°C
(67°F)		 26°C
(80°F)		 27°C
(81°F)		 29°C
(85°F)		 34°C
(94°F)		 34°C
(93°F)		 36°C
(97°F)		 35°C
(95°F)		 36°C
(97°F)		 36°C
(96°F)		 27°C
(81°F)		 22°C
(72°F)
Mean maximum 18°C
(65°F)		 21°C
(71°F)		 24°C
(76°F)		 28°C
(83°F)		 32°C
(90°F)		 33°C
(92°F)		 35°C
(95°F)		 34°C
(93°F)		 33°C
(91°F)		 31°C
(87°F)		 22°C
(72°F)		 19°C
(67°F)
Average high 6°C
(43°F)		 9°C
(49°F)		 14°C
(58°F)		 19°C
(66°F)		 25°C
(77°F)		 29°C
(84°F)		 31°C
(87°F)		 30°C
(86°F)		 28°C
(82°F)		 21°C
(71°F)		 13°C
(55°F)		 10°C
(50°F)
Daily mean 2°C
(36°F)		 4°C
(40°F)		 9°C
(49°F)		 13°C
(56°F)		 20°C
(68°F)		 24°C
(75°F)		 26°C
(79°F)		 25°C
(77°F)		 22°C
(72°F)		 16°C
(61°F)		 7°C
(46°F)		 5°C
(42°F)
Average low -1°C
(30°F)		 0°C
(33°F)		 4°C
(40°F)		 8°C
(47°F)		 15°C
(60°F)		 19°C
(67°F)		 22°C
(71°F)		 20°C
(69°F)		 17°C
(63°F)		 11°C
(52°F)		 3°C
(37°F)		 1°C
(34°F)
Mean minimum -13°C
(8°F)		 -12°C
(11°F)		 -6°C
(21°F)		 -1°C
(31°F)		 6°C
(43°F)		 14°C
(57°F)		 17°C
(63°F)		 15°C
(59°F)		 10°C
(50°F)		 2°C
(35°F)		 -5°C
(23°F)		 -8°C
(18°F)
Minimum -18°C
(1°F)		 -17°C
(1°F)		 -12°C
(12°F)		 -2°C
(28°F)		 1°C
(34°F)		 10°C
(50°F)		 15°C
(60°F)		 14°C
(57°F)		 8°C
(47°F)		 -0°C
(32°F)		 -10°C
(15°F)		 -13°C
(10°F)

Compare climate in Fort Knox with other places

Compare temperature, precipitation, sunshine, UV index in Fort Knox, Kentucky, United States with other places around the world.

Monthly average precipitation in Fort Knox, Kentucky, United States §

Fort Knox usually has the most precipitation in April, May and June, with an average of 12 rainy days and 142 mm (5.6 inches) of precipitation per month.The driest months in Fort Knox are January, August and November. On average, 91 mm (3.6 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Fort Knox, Kentucky, 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) 90 (3.5) 135 (5.3) 129 (5.1) 137 (5.4) 138 (5.4) 150 (5.9) 109 (4.3) 96 (3.8) 117 (4.6) 100 (3.9) 87 (3.4) 105 (4.1)
Average precipitation days (≥ 1 mm) 9 13 13 12 14 12 12 12 9 10 9 10

Monthly sunshine hours in Fort Knox, Kentucky, United States §

The sunniest months in Fort Knox are June, July and August, when the sun shines an average of 10 hours 46 minutes a day.Least sunny months in Fort Knox: January, February and December receive an average of 5 hours 1 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Fort Knox, Kentucky, 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 130 152 219 243 286 324 344 321 282 247 204 173
Mean daily daylight hours 9h 51m 10h 47m 11h 58m 13h 12m 14h 14m 14h 44m 14h 27m 13h 32m 12h 22m 11h 9m 10h 6m 9h 33m

Solar UV radiation in Fort Knox, Kentucky, United States §

Fort Knox experiences the highest level of ultraviolet (UV) radiation in April, June and August, when the maximum UV index can reach values of 10 - 11, which corresponds to the Very High / Extreme category of sun exposure.January, February 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 Fort Knox UV Index data.

Average daily maximum UV levels by month for Fort Knox, Kentucky, 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 5 7 10 10 11 10 10 9 7 5 3