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Monthly climate in Dunkirk, Indiana, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Dunkirk 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 1130 mm (44.5 inches) and receives 133 rainy days on the 1 mm (0.04 inches) threshold annually.Dunkirk enjoys an average of 2839 hours of sunshine throughout the year, and daylight varies from 9 hours 17 minutes to 15 hours 2 minutes per day.

Monthly average temperatures in Dunkirk, Indiana, United States §

The warmest months in Dunkirk are June, July and August, with daily mean temperatures ranging from 23 to 25 °C (73 - 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, Dunkirk experiences 99 days above 25 °C (77.0 °F) and 96 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Dunkirk, 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
(65°F)		 21°C
(70°F)		 25°C
(77°F)		 29°C
(85°F)		 35°C
(95°F)		 35°C
(96°F)		 34°C
(94°F)		 34°C
(94°F)		 34°C
(93°F)		 33°C
(91°F)		 26°C
(79°F)		 17°C
(64°F)
Mean maximum 14°C
(57°F)		 16°C
(62°F)		 21°C
(70°F)		 27°C
(80°F)		 31°C
(89°F)		 33°C
(92°F)		 33°C
(92°F)		 33°C
(91°F)		 32°C
(91°F)		 30°C
(86°F)		 19°C
(67°F)		 16°C
(61°F)
Average high 2°C
(35°F)		 4°C
(39°F)		 11°C
(51°F)		 16°C
(61°F)		 22°C
(73°F)		 28°C
(82°F)		 29°C
(85°F)		 28°C
(83°F)		 26°C
(79°F)		 19°C
(66°F)		 9°C
(49°F)		 6°C
(43°F)
Daily mean -2°C
(29°F)		 -1°C
(31°F)		 5°C
(42°F)		 10°C
(51°F)		 17°C
(64°F)		 23°C
(73°F)		 25°C
(77°F)		 23°C
(74°F)		 21°C
(69°F)		 14°C
(57°F)		 5°C
(41°F)		 2°C
(35°F)
Average low -5°C
(22°F)		 -5°C
(23°F)		 0°C
(33°F)		 5°C
(42°F)		 12°C
(55°F)		 18°C
(64°F)		 20°C
(68°F)		 18°C
(65°F)		 15°C
(60°F)		 9°C
(49°F)		 1°C
(34°F)		 -2°C
(28°F)
Mean minimum -20°C
(-4°F)		 -18°C
(-1°F)		 -10°C
(15°F)		 -4°C
(25°F)		 3°C
(37°F)		 12°C
(54°F)		 14°C
(57°F)		 12°C
(54°F)		 7°C
(46°F)		 0°C
(33°F)		 -8°C
(18°F)		 -13°C
(8°F)
Minimum -27°C
(-17°F)		 -24°C
(-11°F)		 -17°C
(2°F)		 -7°C
(20°F)		 -2°C
(29°F)		 9°C
(49°F)		 13°C
(56°F)		 11°C
(51°F)		 5°C
(41°F)		 -2°C
(29°F)		 -14°C
(6°F)		 -23°C
(-10°F)

Compare climate in Dunkirk with other places

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

Monthly average precipitation in Dunkirk, Indiana, United States §

Dunkirk usually has the most precipitation in May, August and October, with an average of 12 rainy days and 123 mm (4.9 inches) of precipitation per month.The driest months in Dunkirk are January, September and December. On average, 67 mm (2.7 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Dunkirk, 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) 75 (3.0) 79 (3.1) 102 (4.0) 96 (3.8) 158 (6.2) 103 (4.1) 101 (4.0) 105 (4.1) 63 (2.5) 107 (4.2) 76 (3.0) 64 (2.5)
Average precipitation days (≥ 1 mm) 8 12 12 13 15 12 12 10 9 13 8 9

Monthly sunshine hours in Dunkirk, Indiana, United States §

The sunniest months in Dunkirk are June, July and August, when the sun shines an average of 10 hours 47 minutes a day.Least sunny months in Dunkirk: January, February and December receive an average of 4 hours 50 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Dunkirk, 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 110 164 219 231 271 324 342 325 282 221 180 165
Mean daily daylight hours 9h 36m 10h 39m 11h 58m 13h 19m 14h 28m 15h 2m 14h 43m 13h 42m 12h 24m 11h 3m 9h 53m 9h 17m

Solar UV radiation in Dunkirk, Indiana, United States §

Dunkirk experiences the highest level of ultraviolet (UV) radiation in April, June and July, when the maximum UV index can reach values of 9 - 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 Dunkirk UV Index data.

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