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Monthly climate in Massac, Kentucky, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Massac features a humid subtropical climate (Cfa).Temperatures typically range between 3 °C (38 °F) and 27 °C (81 °F) through the year, but rarely can drop to -17 °C (1 °F) or can rise to as high as 36 °C (98 °F).The average annual precipitation amounts to about 1413 mm (55.6 inches) and receives 127 rainy days on the 1 mm (0.04 inches) threshold annually.Massac enjoys an average of 2988 hours of sunshine throughout the year, and daylight varies from 9 hours 38 minutes to 14 hours 39 minutes per day.

Monthly average temperatures in Massac, Kentucky, United States §

The warmest months in Massac are June, July and August, with daily mean temperatures ranging from 25 to 27 °C (77 - 81 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 3 to 6 °C (38 - 44 °F) throughout the day. On average each year, Massac experiences 133 days above 25 °C (77.0 °F) and 52 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Massac, 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 22°C
(72°F)		 25°C
(77°F)		 28°C
(82°F)		 30°C
(87°F)		 34°C
(93°F)		 36°C
(97°F)		 36°C
(97°F)		 36°C
(97°F)		 36°C
(98°F)		 35°C
(94°F)		 27°C
(81°F)		 23°C
(74°F)
Mean maximum 18°C
(65°F)		 21°C
(70°F)		 25°C
(77°F)		 29°C
(84°F)		 32°C
(90°F)		 34°C
(94°F)		 35°C
(95°F)		 35°C
(95°F)		 34°C
(93°F)		 31°C
(89°F)		 23°C
(73°F)		 21°C
(70°F)
Average high 7°C
(45°F)		 10°C
(51°F)		 16°C
(60°F)		 20°C
(68°F)		 26°C
(79°F)		 30°C
(86°F)		 32°C
(89°F)		 30°C
(87°F)		 29°C
(85°F)		 22°C
(72°F)		 14°C
(57°F)		 11°C
(52°F)
Daily mean 3°C
(38°F)		 5°C
(41°F)		 10°C
(51°F)		 14°C
(58°F)		 21°C
(70°F)		 25°C
(77°F)		 27°C
(81°F)		 26°C
(78°F)		 23°C
(74°F)		 17°C
(62°F)		 8°C
(47°F)		 6°C
(44°F)
Average low -1°C
(31°F)		 0°C
(33°F)		 5°C
(42°F)		 9°C
(49°F)		 16°C
(61°F)		 21°C
(69°F)		 23°C
(73°F)		 21°C
(70°F)		 18°C
(65°F)		 11°C
(53°F)		 3°C
(38°F)		 2°C
(35°F)
Mean minimum -11°C
(12°F)		 -10°C
(14°F)		 -5°C
(23°F)		 1°C
(33°F)		 8°C
(46°F)		 16°C
(61°F)		 18°C
(65°F)		 15°C
(60°F)		 11°C
(52°F)		 3°C
(37°F)		 -5°C
(23°F)		 -7°C
(20°F)
Minimum -17°C
(2°F)		 -17°C
(1°F)		 -9°C
(15°F)		 -2°C
(29°F)		 5°C
(41°F)		 12°C
(54°F)		 17°C
(62°F)		 14°C
(58°F)		 9°C
(49°F)		 0°C
(32°F)		 -10°C
(14°F)		 -12°C
(10°F)

Compare climate in Massac with other places

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

Monthly average precipitation in Massac, Kentucky, United States §

Massac usually has the most precipitation in February, March and May, with an average of 13 rainy days and 149 mm (5.9 inches) of precipitation per month.The driest months in Massac are August, September and November. On average, 94 mm (3.7 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Massac, 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) 106 (4.2) 146 (5.7) 156 (6.1) 142 (5.6) 144 (5.7) 114 (4.5) 100 (3.9) 95 (3.8) 86 (3.4) 122 (4.8) 99 (3.9) 103 (4.0)
Average precipitation days (≥ 1 mm) 8 12 14 13 14 10 11 10 7 10 9 9

Monthly sunshine hours in Massac, Kentucky, United States §

The sunniest months in Massac are June, July and August, when the sun shines an average of 10 hours 48 minutes a day.Least sunny months in Massac: January, February and December receive an average of 5 hours 24 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Massac, 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 132 170 204 255 289 329 346 319 289 246 217 188
Mean daily daylight hours 9h 55m 10h 49m 11h 59m 13h 10m 14h 10m 14h 39m 14h 23m 13h 30m 12h 22m 11h 11m 10h 9m 9h 38m

Solar UV radiation in Massac, Kentucky, United States §

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

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