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Monthly climate in Indiana, Pennsylvania, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Indiana features a humid continental climate (Dfb).Temperatures typically range between -1 °C (30 °F) and 23 °C (74 °F) through the year, but rarely can drop to -25 °C (-13 °F) or can rise to as high as 35 °C (95 °F).The average annual precipitation amounts to about 1417 mm (55.8 inches) and receives 170 rainy days on the 1 mm (0.04 inches) threshold annually.Indiana enjoys an average of 2767 hours of sunshine throughout the year, and daylight varies from 9 hours 18 minutes to 15 hours 0 minutes per day.

Monthly average temperatures in Indiana, Pennsylvania, United States §

The warmest months in Indiana are June, July and August, with daily mean temperatures ranging from 20 to 23 °C (69 - 74 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -1 to 2 °C (30 - 36 °F) throughout the day. On average each year, Indiana experiences 78 days above 25 °C (77.0 °F) and 92 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Indiana, Pennsylvania, 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)		 24°C
(75°F)		 24°C
(75°F)		 29°C
(84°F)		 31°C
(87°F)		 33°C
(91°F)		 35°C
(95°F)		 34°C
(94°F)		 33°C
(91°F)		 30°C
(86°F)		 25°C
(77°F)		 18°C
(65°F)
Mean maximum 16°C
(60°F)		 19°C
(66°F)		 21°C
(71°F)		 26°C
(80°F)		 30°C
(86°F)		 31°C
(89°F)		 32°C
(90°F)		 32°C
(90°F)		 31°C
(88°F)		 28°C
(82°F)		 21°C
(70°F)		 16°C
(61°F)
Average high 3°C
(37°F)		 6°C
(43°F)		 10°C
(50°F)		 15°C
(60°F)		 21°C
(70°F)		 25°C
(78°F)		 28°C
(82°F)		 27°C
(81°F)		 24°C
(76°F)		 18°C
(65°F)		 9°C
(49°F)		 5°C
(42°F)
Daily mean -1°C
(30°F)		 1°C
(34°F)		 5°C
(41°F)		 10°C
(51°F)		 16°C
(61°F)		 20°C
(69°F)		 23°C
(74°F)		 22°C
(72°F)		 19°C
(66°F)		 13°C
(56°F)		 5°C
(41°F)		 2°C
(36°F)
Average low -5°C
(23°F)		 -3°C
(27°F)		 -0°C
(32°F)		 5°C
(42°F)		 11°C
(53°F)		 16°C
(60°F)		 18°C
(66°F)		 18°C
(64°F)		 14°C
(58°F)		 9°C
(49°F)		 1°C
(34°F)		 -2°C
(29°F)
Mean minimum -18°C
(-0°F)		 -16°C
(3°F)		 -11°C
(13°F)		 -3°C
(27°F)		 1°C
(34°F)		 9°C
(48°F)		 13°C
(55°F)		 12°C
(53°F)		 7°C
(45°F)		 0°C
(33°F)		 -7°C
(21°F)		 -11°C
(13°F)
Minimum -25°C
(-13°F)		 -23°C
(-9°F)		 -15°C
(5°F)		 -5°C
(23°F)		 -2°C
(28°F)		 5°C
(41°F)		 11°C
(53°F)		 10°C
(51°F)		 3°C
(38°F)		 -2°C
(30°F)		 -10°C
(15°F)		 -16°C
(3°F)

Compare climate in Indiana with other places

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

Monthly average precipitation in Indiana, Pennsylvania, United States §

Indiana usually has the most precipitation in April, May and June, with an average of 16 rainy days and 141 mm (5.6 inches) of precipitation per month.The driest months in Indiana are January, August and November. On average, 92 mm (3.6 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Indiana, Pennsylvania, 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) 96 (3.8) 130 (5.1) 111 (4.4) 132 (5.2) 157 (6.2) 136 (5.3) 129 (5.1) 84 (3.3) 123 (4.9) 116 (4.6) 95 (3.7) 109 (4.3)
Average precipitation days (≥ 1 mm) 14 16 14 16 17 15 15 14 10 13 12 14

Monthly sunshine hours in Indiana, Pennsylvania, United States §

The sunniest months in Indiana are June, July and August, when the sun shines an average of 10 hours 23 minutes a day.Least sunny months in Indiana: January, February and December receive an average of 4 hours 20 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Indiana, Pennsylvania, 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 108 140 225 240 268 304 337 314 278 227 176 145
Mean daily daylight hours 9h 38m 10h 39m 11h 58m 13h 18m 14h 26m 15h 0m 14h 42m 13h 41m 12h 24m 11h 4m 9h 54m 9h 18m

Solar UV radiation in Indiana, Pennsylvania, United States §

Indiana experiences the highest level of ultraviolet (UV) radiation in May, June and July, when the maximum UV index can reach values of 10 - 10, which corresponds to the Very High 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 Indiana UV Index data.

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