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Monthly climate in Roodhouse, Illinois, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Roodhouse features a humid subtropical climate (Cfa).Temperatures typically range between -1 °C (30 °F) and 26 °C (78 °F) through the year, but rarely can drop to -25 °C (-12 °F) or can rise to as high as 36 °C (97 °F).The average annual precipitation amounts to about 1169 mm (46.0 inches) and receives 114 rainy days on the 1 mm (0.04 inches) threshold annually.Roodhouse enjoys an average of 2991 hours of sunshine throughout the year, and daylight varies from 9 hours 25 minutes to 14 hours 53 minutes per day.

Monthly average temperatures in Roodhouse, Illinois, United States §

The warmest months in Roodhouse are June, July and August, with daily mean temperatures ranging from 24 to 26 °C (75 - 78 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -1 to 3 °C (30 - 37 °F) throughout the day. On average each year, Roodhouse experiences 114 days above 25 °C (77.0 °F) and 88 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Roodhouse, Illinois, 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 17°C
(64°F)		 23°C
(74°F)		 25°C
(76°F)		 29°C
(84°F)		 34°C
(94°F)		 35°C
(95°F)		 36°C
(97°F)		 34°C
(93°F)		 34°C
(93°F)		 32°C
(90°F)		 24°C
(75°F)		 21°C
(69°F)
Mean maximum 15°C
(59°F)		 18°C
(65°F)		 22°C
(71°F)		 28°C
(83°F)		 32°C
(90°F)		 33°C
(92°F)		 35°C
(95°F)		 33°C
(91°F)		 32°C
(91°F)		 30°C
(87°F)		 20°C
(69°F)		 18°C
(65°F)
Average high 3°C
(37°F)		 5°C
(41°F)		 12°C
(54°F)		 17°C
(63°F)		 24°C
(75°F)		 29°C
(84°F)		 30°C
(86°F)		 29°C
(84°F)		 27°C
(81°F)		 19°C
(67°F)		 11°C
(51°F)		 8°C
(46°F)
Daily mean -1°C
(30°F)		 0°C
(33°F)		 7°C
(45°F)		 12°C
(53°F)		 19°C
(66°F)		 24°C
(75°F)		 26°C
(78°F)		 24°C
(75°F)		 22°C
(71°F)		 14°C
(58°F)		 6°C
(43°F)		 3°C
(37°F)
Average low -5°C
(23°F)		 -5°C
(24°F)		 2°C
(36°F)		 6°C
(44°F)		 14°C
(57°F)		 19°C
(66°F)		 21°C
(70°F)		 19°C
(66°F)		 16°C
(61°F)		 9°C
(49°F)		 1°C
(34°F)		 -2°C
(29°F)
Mean minimum -18°C
(-1°F)		 -18°C
(1°F)		 -9°C
(15°F)		 -2°C
(29°F)		 5°C
(42°F)		 14°C
(57°F)		 16°C
(60°F)		 13°C
(56°F)		 8°C
(47°F)		 -1°C
(30°F)		 -8°C
(17°F)		 -12°C
(11°F)
Minimum -25°C
(-12°F)		 -21°C
(-6°F)		 -17°C
(1°F)		 -6°C
(21°F)		 2°C
(35°F)		 11°C
(51°F)		 14°C
(57°F)		 12°C
(54°F)		 6°C
(43°F)		 -4°C
(25°F)		 -13°C
(8°F)		 -19°C
(-2°F)

Compare climate in Roodhouse with other places

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

Monthly average precipitation in Roodhouse, Illinois, United States §

Roodhouse usually has the most precipitation in March, April and May, with an average of 12 rainy days and 140 mm (5.5 inches) of precipitation per month.The driest months in Roodhouse are January, November and December. On average, 61 mm (2.4 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Roodhouse, Illinois, 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) 67 (2.7) 69 (2.7) 139 (5.5) 130 (5.1) 152 (6.0) 117 (4.6) 96 (3.8) 106 (4.2) 72 (2.8) 104 (4.1) 66 (2.6) 49 (1.9)
Average precipitation days (≥ 1 mm) 7 10 11 11 14 11 9 10 7 10 8 6

Monthly sunshine hours in Roodhouse, Illinois, United States §

The sunniest months in Roodhouse are June, July and August, when the sun shines an average of 11 hours 4 minutes a day.Least sunny months in Roodhouse: January, February and December receive an average of 5 hours 28 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Roodhouse, Illinois, 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 122 175 209 242 286 332 351 334 292 235 207 200
Mean daily daylight hours 9h 43m 10h 43m 11h 58m 13h 16m 14h 21m 14h 53m 14h 36m 13h 38m 12h 23m 11h 6m 9h 59m 9h 25m

Solar UV radiation in Roodhouse, Illinois, United States §

Roodhouse experiences the highest level of ultraviolet (UV) radiation in May, June and July, when the maximum UV index can reach values of 10 - 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 4. For more detailed information, check out our hourly Roodhouse UV Index data.

Average daily maximum UV levels by month for Roodhouse, Illinois, 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 11 11 9 9 6 4 3