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Monthly climate in Hartford, Kentucky, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Hartford features a humid subtropical climate (Cfa).Temperatures typically range between 3 °C (37 °F) and 27 °C (80 °F) through the year, but rarely can drop to -19 °C (-1 °F) or can rise to as high as 37 °C (99 °F).The average annual precipitation amounts to about 1384 mm (54.5 inches) and receives 132 rainy days on the 1 mm (0.04 inches) threshold annually.Hartford enjoys an average of 2955 hours of sunshine throughout the year, and daylight varies from 9 hours 36 minutes to 14 hours 41 minutes per day.

Monthly average temperatures in Hartford, Kentucky, United States §

The warmest months in Hartford are June, July and August, with daily mean temperatures ranging from 25 to 27 °C (77 - 80 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 3 to 6 °C (37 - 43 °F) throughout the day. On average each year, Hartford experiences 132 days above 25 °C (77.0 °F) and 57 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Hartford, 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 21°C
(70°F)		 26°C
(80°F)		 27°C
(82°F)		 30°C
(87°F)		 35°C
(95°F)		 34°C
(94°F)		 37°C
(98°F)		 36°C
(98°F)		 37°C
(99°F)		 36°C
(98°F)		 27°C
(82°F)		 23°C
(74°F)
Mean maximum 19°C
(67°F)		 22°C
(72°F)		 25°C
(76°F)		 29°C
(85°F)		 33°C
(91°F)		 34°C
(93°F)		 35°C
(96°F)		 34°C
(94°F)		 34°C
(93°F)		 32°C
(89°F)		 23°C
(74°F)		 20°C
(69°F)
Average high 7°C
(45°F)		 10°C
(51°F)		 15°C
(60°F)		 20°C
(68°F)		 26°C
(78°F)		 30°C
(85°F)		 31°C
(88°F)		 30°C
(87°F)		 28°C
(83°F)		 22°C
(72°F)		 13°C
(56°F)		 11°C
(52°F)
Daily mean 3°C
(37°F)		 5°C
(42°F)		 10°C
(50°F)		 14°C
(58°F)		 21°C
(70°F)		 25°C
(77°F)		 27°C
(80°F)		 25°C
(78°F)		 23°C
(73°F)		 17°C
(62°F)		 8°C
(47°F)		 6°C
(43°F)
Average low -1°C
(30°F)		 1°C
(33°F)		 5°C
(41°F)		 9°C
(48°F)		 16°C
(61°F)		 20°C
(68°F)		 22°C
(72°F)		 21°C
(70°F)		 18°C
(64°F)		 11°C
(53°F)		 3°C
(38°F)		 1°C
(35°F)
Mean minimum -13°C
(9°F)		 -11°C
(13°F)		 -6°C
(22°F)		 -1°C
(31°F)		 6°C
(44°F)		 15°C
(58°F)		 17°C
(64°F)		 15°C
(59°F)		 10°C
(49°F)		 2°C
(36°F)		 -6°C
(22°F)		 -7°C
(19°F)
Minimum -19°C
(-1°F)		 -16°C
(3°F)		 -11°C
(13°F)		 -3°C
(27°F)		 3°C
(38°F)		 11°C
(52°F)		 16°C
(62°F)		 14°C
(57°F)		 8°C
(46°F)		 0°C
(33°F)		 -11°C
(12°F)		 -13°C
(9°F)

Compare climate in Hartford with other places

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

Monthly average precipitation in Hartford, Kentucky, United States §

Hartford usually has the most precipitation in February, March and April, with an average of 13 rainy days and 142 mm (5.6 inches) of precipitation per month.The driest months in Hartford are January, August and November. On average, 93 mm (3.7 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Hartford, 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) 93 (3.7) 150 (5.9) 129 (5.1) 149 (5.9) 126 (5.0) 125 (4.9) 103 (4.1) 92 (3.6) 103 (4.1) 115 (4.5) 93 (3.7) 106 (4.2)
Average precipitation days (≥ 1 mm) 9 14 14 12 12 11 11 12 8 10 9 10

Monthly sunshine hours in Hartford, Kentucky, United States §

The sunniest months in Hartford are June, July and August, when the sun shines an average of 10 hours 51 minutes a day.Least sunny months in Hartford: January, February and December receive an average of 5 hours 9 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Hartford, 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 131 157 210 248 285 331 348 319 288 246 208 180
Mean daily daylight hours 9h 54m 10h 49m 11h 59m 13h 11m 14h 11m 14h 41m 14h 24m 13h 31m 12h 22m 11h 10m 10h 8m 9h 36m

Solar UV radiation in Hartford, Kentucky, United States §

Hartford 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, November 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 Hartford UV Index data.

Average daily maximum UV levels by month for Hartford, 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 6 7 10 10 11 10 10 9 7 5 3