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Monthly climate in Orleans, Iowa, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Orleans features a humid continental climate (Dfa).Temperatures typically range between -8 °C (18 °F) and 23 °C (74 °F) through the year, but rarely can drop to -34 °C (-28 °F) or can rise to as high as 35 °C (96 °F).The average annual precipitation amounts to about 982 mm (38.7 inches) and receives 106 rainy days on the 1 mm (0.04 inches) threshold annually.Orleans enjoys an average of 3041 hours of sunshine throughout the year, and daylight varies from 8 hours 58 minutes to 15 hours 21 minutes per day.

Monthly average temperatures in Orleans, Iowa, United States §

The warmest months in Orleans are June, July and August, with daily mean temperatures ranging from 21 to 23 °C (71 - 74 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -8 to -3 °C (18 - 26 °F) throughout the day. On average each year, Orleans experiences 77 days above 25 °C (77.0 °F) and 139 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Orleans, 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 9°C
(49°F)		 19°C
(67°F)		 24°C
(75°F)		 28°C
(83°F)		 35°C
(94°F)		 35°C
(96°F)		 35°C
(95°F)		 35°C
(95°F)		 33°C
(91°F)		 30°C
(86°F)		 25°C
(77°F)		 18°C
(65°F)
Mean maximum 8°C
(46°F)		 9°C
(49°F)		 19°C
(66°F)		 25°C
(77°F)		 31°C
(88°F)		 32°C
(91°F)		 34°C
(93°F)		 32°C
(89°F)		 32°C
(89°F)		 28°C
(82°F)		 18°C
(65°F)		 11°C
(53°F)
Average high -3°C
(27°F)		 -3°C
(26°F)		 6°C
(43°F)		 12°C
(55°F)		 20°C
(69°F)		 27°C
(82°F)		 28°C
(83°F)		 26°C
(80°F)		 24°C
(75°F)		 14°C
(58°F)		 6°C
(44°F)		 1°C
(34°F)
Daily mean -8°C
(18°F)		 -8°C
(18°F)		 1°C
(34°F)		 7°C
(45°F)		 15°C
(59°F)		 22°C
(72°F)		 23°C
(74°F)		 21°C
(71°F)		 18°C
(65°F)		 9°C
(49°F)		 1°C
(35°F)		 -3°C
(26°F)
Average low -12°C
(11°F)		 -13°C
(9°F)		 -3°C
(26°F)		 1°C
(35°F)		 10°C
(50°F)		 17°C
(63°F)		 19°C
(66°F)		 17°C
(62°F)		 13°C
(56°F)		 5°C
(40°F)		 -3°C
(26°F)		 -8°C
(19°F)
Mean minimum -25°C
(-12°F)		 -26°C
(-15°F)		 -15°C
(5°F)		 -8°C
(18°F)		 2°C
(37°F)		 11°C
(51°F)		 13°C
(56°F)		 11°C
(52°F)		 5°C
(42°F)		 -5°C
(24°F)		 -13°C
(9°F)		 -19°C
(-2°F)
Minimum -34°C
(-28°F)		 -34°C
(-28°F)		 -26°C
(-15°F)		 -15°C
(6°F)		 0°C
(33°F)		 7°C
(45°F)		 13°C
(55°F)		 10°C
(50°F)		 3°C
(38°F)		 -10°C
(13°F)		 -16°C
(3°F)		 -24°C
(-11°F)

Compare climate in Orleans with other places

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

Monthly average precipitation in Orleans, Iowa, United States §

Orleans usually has the most precipitation in May, June and September, with an average of 11 rainy days and 126 mm (5.0 inches) of precipitation per month.The driest months in Orleans 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 Orleans, 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) 32 (1.3) 35 (1.4) 70 (2.7) 95 (3.8) 136 (5.4) 129 (5.1) 90 (3.5) 113 (4.4) 114 (4.5) 94 (3.7) 32 (1.3) 42 (1.6)
Average precipitation days (≥ 1 mm) 5 7 8 9 15 11 10 11 9 10 6 5

Monthly sunshine hours in Orleans, Iowa, United States §

The sunniest months in Orleans are June, July and August, when the sun shines an average of 11 hours 21 minutes a day.Least sunny months in Orleans: January, November and December receive an average of 6 hours 0 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Orleans, 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 146 208 232 245 278 347 365 333 260 218 203 202
Mean daily daylight hours 9h 20m 10h 30m 11h 58m 13h 27m 14h 43m 15h 21m 15h 1m 13h 52m 12h 26m 10h 57m 9h 38m 8h 58m

Solar UV radiation in Orleans, Iowa, United States §

Orleans 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 Orleans UV Index data.

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