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Monthly climate in Dunlap, Iowa, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Dunlap features a humid continental climate (Dfa).Temperatures typically range between -5 °C (24 °F) and 25 °C (77 °F) through the year, but rarely can drop to -33 °C (-28 °F) or can rise to as high as 38 °C (100 °F).The average annual precipitation amounts to about 961 mm (37.9 inches) and receives 101 rainy days on the 1 mm (0.04 inches) threshold annually.Dunlap enjoys an average of 3099 hours of sunshine throughout the year, and daylight varies from 9 hours 10 minutes to 15 hours 9 minutes per day.

Monthly average temperatures in Dunlap, Iowa, United States §

The warmest months in Dunlap 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 -5 to -1 °C (24 - 30 °F) throughout the day. On average each year, Dunlap experiences 95 days above 25 °C (77.0 °F) and 124 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Dunlap, Iowa, 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 12°C
(54°F)		 20°C
(69°F)		 25°C
(77°F)		 30°C
(86°F)		 35°C
(95°F)		 38°C
(100°F)		 34°C
(94°F)		 35°C
(95°F)		 35°C
(96°F)		 31°C
(88°F)		 26°C
(78°F)		 21°C
(70°F)
Mean maximum 11°C
(52°F)		 15°C
(58°F)		 22°C
(71°F)		 27°C
(80°F)		 32°C
(90°F)		 34°C
(93°F)		 34°C
(93°F)		 32°C
(90°F)		 33°C
(92°F)		 30°C
(85°F)		 19°C
(67°F)		 15°C
(58°F)
Average high -0°C
(32°F)		 1°C
(33°F)		 9°C
(49°F)		 15°C
(60°F)		 22°C
(71°F)		 29°C
(84°F)		 29°C
(85°F)		 28°C
(82°F)		 25°C
(78°F)		 16°C
(61°F)		 9°C
(48°F)		 4°C
(39°F)
Daily mean -5°C
(24°F)		 -5°C
(24°F)		 4°C
(40°F)		 9°C
(49°F)		 16°C
(62°F)		 23°C
(74°F)		 25°C
(77°F)		 23°C
(73°F)		 20°C
(68°F)		 11°C
(52°F)		 3°C
(38°F)		 -1°C
(30°F)
Average low -9°C
(16°F)		 -10°C
(15°F)		 -1°C
(31°F)		 3°C
(38°F)		 11°C
(53°F)		 18°C
(65°F)		 20°C
(68°F)		 18°C
(64°F)		 14°C
(58°F)		 6°C
(43°F)		 -2°C
(29°F)		 -6°C
(22°F)
Mean minimum -23°C
(-9°F)		 -22°C
(-8°F)		 -11°C
(12°F)		 -6°C
(21°F)		 3°C
(39°F)		 11°C
(53°F)		 14°C
(57°F)		 11°C
(52°F)		 6°C
(43°F)		 -3°C
(26°F)		 -11°C
(13°F)		 -16°C
(4°F)
Minimum -28°C
(-18°F)		 -33°C
(-28°F)		 -21°C
(-5°F)		 -11°C
(13°F)		 2°C
(35°F)		 9°C
(48°F)		 12°C
(53°F)		 10°C
(50°F)		 4°C
(39°F)		 -7°C
(20°F)		 -16°C
(4°F)		 -23°C
(-9°F)

Compare climate in Dunlap with other places

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

Monthly average precipitation in Dunlap, Iowa, United States §

Dunlap usually has the most precipitation in May, August and October, with an average of 11 rainy days and 134 mm (5.3 inches) of precipitation per month.The driest months in Dunlap are January, February and November. On average, 33 mm (1.3 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Dunlap, Iowa, 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) 29 (1.1) 37 (1.5) 84 (3.3) 59 (2.3) 166 (6.5) 115 (4.5) 67 (2.7) 117 (4.6) 96 (3.8) 120 (4.7) 33 (1.3) 37 (1.5)
Average precipitation days (≥ 1 mm) 5 7 9 10 16 10 7 9 9 10 5 4

Monthly sunshine hours in Dunlap, Iowa, United States §

The sunniest months in Dunlap are June, July and August, when the sun shines an average of 11 hours 27 minutes a day.Least sunny months in Dunlap: January, February and November receive an average of 6 hours 18 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Dunlap, Iowa, 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 150 204 217 263 264 350 375 327 280 232 212 218
Mean daily daylight hours 9h 31m 10h 35m 11h 58m 13h 22m 14h 33m 15h 9m 14h 49m 13h 46m 12h 25m 11h 1m 9h 47m 9h 10m

Solar UV radiation in Dunlap, Iowa, United States §

Dunlap 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 Dunlap UV Index data.

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