nomadseason

Monthly climate in Oelwein, Iowa, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Oelwein features a humid continental climate (Dfa).Temperatures typically range between -7 °C (20 °F) and 23 °C (75 °F) through the year, but rarely can drop to -33 °C (-27 °F) or can rise to as high as 34 °C (94 °F).The average annual precipitation amounts to about 1107 mm (43.6 inches) and receives 112 rainy days on the 1 mm (0.04 inches) threshold annually.Oelwein enjoys an average of 2972 hours of sunshine throughout the year, and daylight varies from 9 hours 5 minutes to 15 hours 15 minutes per day.

Monthly average temperatures in Oelwein, Iowa, United States §

The warmest months in Oelwein are June, July and August, with daily mean temperatures ranging from 21 to 23 °C (71 - 75 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -7 to -2 °C (20 - 29 °F) throughout the day. On average each year, Oelwein experiences 78 days above 25 °C (77.0 °F) and 134 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Oelwein, 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 11°C
(53°F)		 20°C
(68°F)		 22°C
(71°F)		 27°C
(81°F)		 34°C
(93°F)		 34°C
(94°F)		 34°C
(93°F)		 34°C
(93°F)		 33°C
(91°F)		 31°C
(88°F)		 23°C
(73°F)		 21°C
(71°F)
Mean maximum 8°C
(47°F)		 11°C
(53°F)		 18°C
(65°F)		 25°C
(77°F)		 31°C
(89°F)		 32°C
(91°F)		 33°C
(91°F)		 31°C
(88°F)		 31°C
(88°F)		 29°C
(84°F)		 17°C
(63°F)		 15°C
(59°F)
Average high -3°C
(27°F)		 -2°C
(29°F)		 7°C
(45°F)		 13°C
(56°F)		 21°C
(69°F)		 27°C
(81°F)		 28°C
(83°F)		 27°C
(80°F)		 24°C
(75°F)		 15°C
(59°F)		 7°C
(44°F)		 2°C
(36°F)
Daily mean -7°C
(20°F)		 -6°C
(21°F)		 2°C
(36°F)		 8°C
(46°F)		 16°C
(60°F)		 22°C
(72°F)		 23°C
(75°F)		 21°C
(71°F)		 18°C
(66°F)		 10°C
(51°F)		 2°C
(36°F)		 -2°C
(29°F)
Average low -11°C
(13°F)		 -11°C
(12°F)		 -2°C
(28°F)		 3°C
(37°F)		 11°C
(51°F)		 17°C
(62°F)		 19°C
(66°F)		 16°C
(61°F)		 13°C
(56°F)		 6°C
(42°F)		 -3°C
(27°F)		 -6°C
(22°F)
Mean minimum -25°C
(-13°F)		 -25°C
(-12°F)		 -15°C
(4°F)		 -7°C
(20°F)		 2°C
(36°F)		 11°C
(51°F)		 13°C
(57°F)		 11°C
(51°F)		 6°C
(43°F)		 -4°C
(24°F)		 -12°C
(11°F)		 -17°C
(3°F)
Minimum -33°C
(-27°F)		 -33°C
(-27°F)		 -24°C
(-11°F)		 -11°C
(12°F)		 -2°C
(29°F)		 8°C
(47°F)		 11°C
(52°F)		 10°C
(50°F)		 2°C
(36°F)		 -6°C
(21°F)		 -17°C
(2°F)		 -22°C
(-7°F)

Compare climate in Oelwein with other places

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

Monthly average precipitation in Oelwein, Iowa, United States §

Oelwein usually has the most precipitation in May, June and October, with an average of 12 rainy days and 150 mm (5.9 inches) of precipitation per month.The driest months in Oelwein are January, November and December. On average, 42 mm (1.6 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Oelwein, 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) 40 (1.6) 52 (2.0) 68 (2.7) 75 (3.0) 176 (6.9) 138 (5.4) 106 (4.2) 102 (4.0) 129 (5.1) 137 (5.4) 49 (1.9) 36 (1.4)
Average precipitation days (≥ 1 mm) 7 8 8 10 14 11 10 8 11 12 8 5

Monthly sunshine hours in Oelwein, Iowa, United States §

The sunniest months in Oelwein are June, July and August, when the sun shines an average of 11 hours 14 minutes a day.Least sunny months in Oelwein: January, February and December receive an average of 5 hours 43 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Oelwein, 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 134 194 231 243 259 338 365 329 269 213 201 191
Mean daily daylight hours 9h 26m 10h 33m 11h 58m 13h 24m 14h 38m 15h 15m 14h 55m 13h 49m 12h 25m 10h 59m 9h 43m 9h 5m

Solar UV radiation in Oelwein, Iowa, United States §

Oelwein experiences the highest level of ultraviolet (UV) radiation in June, July and August, when the maximum UV index can reach values of 9 - 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 3. For more detailed information, check out our hourly Oelwein UV Index data.

Average daily maximum UV levels by month for Oelwein, 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 5 8 9 11 10 9 8 5 3 3