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Monthly climate in Thorntown, Indiana, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Thorntown features a humid continental climate (Dfa).Temperatures typically range between -2 °C (29 °F) and 25 °C (77 °F) through the year, but rarely can drop to -27 °C (-17 °F) or can rise to as high as 35 °C (96 °F).The average annual precipitation amounts to about 1129 mm (44.4 inches) and receives 130 rainy days on the 1 mm (0.04 inches) threshold annually.Thorntown enjoys an average of 2885 hours of sunshine throughout the year, and daylight varies from 9 hours 20 minutes to 14 hours 58 minutes per day.

Monthly average temperatures in Thorntown, Indiana, United States §

The warmest months in Thorntown are June, July and August, with daily mean temperatures ranging from 23 to 25 °C (74 - 77 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -2 to 2 °C (29 - 35 °F) throughout the day. On average each year, Thorntown experiences 100 days above 25 °C (77.0 °F) and 93 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Thorntown, Indiana, 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 18°C
(64°F)		 21°C
(71°F)		 24°C
(75°F)		 29°C
(84°F)		 34°C
(93°F)		 34°C
(93°F)		 34°C
(93°F)		 35°C
(96°F)		 33°C
(92°F)		 33°C
(91°F)		 26°C
(79°F)		 17°C
(64°F)
Mean maximum 14°C
(58°F)		 17°C
(63°F)		 21°C
(70°F)		 27°C
(80°F)		 31°C
(88°F)		 33°C
(92°F)		 33°C
(92°F)		 33°C
(91°F)		 32°C
(90°F)		 30°C
(86°F)		 19°C
(67°F)		 16°C
(61°F)
Average high 2°C
(36°F)		 4°C
(40°F)		 11°C
(51°F)		 16°C
(61°F)		 23°C
(73°F)		 28°C
(82°F)		 29°C
(85°F)		 28°C
(83°F)		 26°C
(80°F)		 19°C
(67°F)		 10°C
(49°F)		 6°C
(43°F)
Daily mean -2°C
(29°F)		 -0°C
(32°F)		 6°C
(42°F)		 11°C
(52°F)		 18°C
(64°F)		 23°C
(74°F)		 25°C
(77°F)		 23°C
(74°F)		 21°C
(70°F)		 14°C
(58°F)		 5°C
(41°F)		 2°C
(35°F)
Average low -5°C
(23°F)		 -4°C
(24°F)		 1°C
(34°F)		 6°C
(43°F)		 13°C
(55°F)		 18°C
(65°F)		 20°C
(68°F)		 18°C
(65°F)		 16°C
(60°F)		 9°C
(49°F)		 1°C
(34°F)		 -2°C
(28°F)
Mean minimum -20°C
(-3°F)		 -18°C
(1°F)		 -10°C
(15°F)		 -4°C
(26°F)		 3°C
(38°F)		 13°C
(55°F)		 14°C
(57°F)		 12°C
(54°F)		 8°C
(46°F)		 0°C
(33°F)		 -8°C
(17°F)		 -15°C
(6°F)
Minimum -27°C
(-17°F)		 -22°C
(-7°F)		 -17°C
(2°F)		 -7°C
(20°F)		 -2°C
(29°F)		 10°C
(50°F)		 13°C
(56°F)		 11°C
(52°F)		 5°C
(41°F)		 -2°C
(29°F)		 -16°C
(3°F)		 -24°C
(-11°F)

Compare climate in Thorntown with other places

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

Monthly average precipitation in Thorntown, Indiana, United States §

Thorntown usually has the most precipitation in March, May and October, with an average of 13 rainy days and 121 mm (4.8 inches) of precipitation per month.The driest months in Thorntown are January, September and December. On average, 71 mm (2.8 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Thorntown, Indiana, 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) 78 (3.1) 83 (3.3) 110 (4.3) 93 (3.6) 146 (5.8) 101 (4.0) 102 (4.0) 94 (3.7) 67 (2.6) 107 (4.2) 80 (3.1) 68 (2.7)
Average precipitation days (≥ 1 mm) 9 12 13 11 14 11 12 10 7 12 9 10

Monthly sunshine hours in Thorntown, Indiana, United States §

The sunniest months in Thorntown are June, July and August, when the sun shines an average of 10 hours 55 minutes a day.Least sunny months in Thorntown: January, February and December receive an average of 4 hours 55 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Thorntown, Indiana, 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 112 163 219 236 278 328 347 329 287 226 183 172
Mean daily daylight hours 9h 39m 10h 40m 11h 58m 13h 18m 14h 25m 14h 58m 14h 40m 13h 40m 12h 24m 11h 4m 9h 55m 9h 20m

Solar UV radiation in Thorntown, Indiana, United States §

Thorntown experiences the highest level of ultraviolet (UV) radiation in May, June and July, 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 Low / Moderate exposure category. In these months, the maximum values of the UV index do not exceed 4. For more detailed information, check out our hourly Thorntown UV Index data.

Average daily maximum UV levels by month for Thorntown, Indiana, 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 6 9 10 11 10 9 8 6 4 2