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Monthly climate in Barry, Illinois, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Barry features a humid continental climate (Dfa).Temperatures typically range between -2 °C (29 °F) and 26 °C (78 °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 1151 mm (45.3 inches) and receives 116 rainy days on the 1 mm (0.04 inches) threshold annually.Barry enjoys an average of 2969 hours of sunshine throughout the year, and daylight varies from 9 hours 23 minutes to 14 hours 55 minutes per day.

Monthly average temperatures in Barry, Illinois, United States §

The warmest months in Barry 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 -2 to 2 °C (29 - 36 °F) throughout the day. On average each year, Barry experiences 112 days above 25 °C (77.0 °F) and 90 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Barry, 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
(62°F)		 24°C
(75°F)		 25°C
(77°F)		 29°C
(85°F)		 34°C
(94°F)		 35°C
(96°F)		 35°C
(96°F)		 35°C
(95°F)		 34°C
(94°F)		 32°C
(90°F)		 24°C
(75°F)		 23°C
(73°F)
Mean maximum 14°C
(58°F)		 18°C
(64°F)		 22°C
(72°F)		 29°C
(84°F)		 32°C
(90°F)		 33°C
(92°F)		 35°C
(95°F)		 33°C
(92°F)		 33°C
(91°F)		 30°C
(87°F)		 20°C
(68°F)		 19°C
(66°F)
Average high 2°C
(37°F)		 5°C
(41°F)		 12°C
(53°F)		 17°C
(63°F)		 24°C
(75°F)		 29°C
(84°F)		 30°C
(87°F)		 29°C
(84°F)		 27°C
(81°F)		 19°C
(67°F)		 11°C
(51°F)		 7°C
(45°F)
Daily mean -2°C
(29°F)		 -0°C
(32°F)		 7°C
(44°F)		 12°C
(53°F)		 19°C
(66°F)		 24°C
(75°F)		 26°C
(78°F)		 24°C
(75°F)		 21°C
(71°F)		 14°C
(57°F)		 6°C
(42°F)		 2°C
(36°F)
Average low -6°C
(22°F)		 -5°C
(23°F)		 2°C
(36°F)		 6°C
(43°F)		 14°C
(57°F)		 19°C
(66°F)		 21°C
(70°F)		 19°C
(66°F)		 16°C
(61°F)		 9°C
(48°F)		 1°C
(34°F)		 -2°C
(28°F)
Mean minimum -19°C
(-3°F)		 -19°C
(-2°F)		 -9°C
(16°F)		 -2°C
(28°F)		 5°C
(42°F)		 14°C
(57°F)		 16°C
(61°F)		 13°C
(56°F)		 9°C
(48°F)		 -1°C
(30°F)		 -9°C
(16°F)		 -12°C
(11°F)
Minimum -26°C
(-15°F)		 -27°C
(-17°F)		 -17°C
(2°F)		 -7°C
(19°F)		 3°C
(38°F)		 11°C
(51°F)		 14°C
(58°F)		 12°C
(54°F)		 7°C
(44°F)		 -5°C
(24°F)		 -14°C
(6°F)		 -19°C
(-2°F)

Compare climate in Barry with other places

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

Monthly average precipitation in Barry, Illinois, United States §

Barry usually has the most precipitation in March, May and June, with an average of 12 rainy days and 138 mm (5.4 inches) of precipitation per month.The driest months in Barry are February, November and December. On average, 57 mm (2.2 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Barry, 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) 65 (2.5) 63 (2.5) 130 (5.1) 106 (4.2) 160 (6.3) 123 (4.9) 98 (3.8) 101 (4.0) 89 (3.5) 109 (4.3) 62 (2.4) 47 (1.8)
Average precipitation days (≥ 1 mm) 7 9 12 10 15 10 10 10 7 11 9 6

Monthly sunshine hours in Barry, Illinois, United States §

The sunniest months in Barry are June, July and August, when the sun shines an average of 10 hours 58 minutes a day.Least sunny months in Barry: January, February and December receive an average of 5 hours 32 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Barry, 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 121 178 209 242 279 328 350 330 286 230 207 203
Mean daily daylight hours 9h 42m 10h 42m 11h 58m 13h 16m 14h 22m 14h 55m 14h 37m 13h 38m 12h 23m 11h 6m 9h 58m 9h 23m

Solar UV radiation in Barry, Illinois, United States §

Barry experiences the highest level of ultraviolet (UV) radiation in June, July and August, 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 Barry UV Index data.

Average daily maximum UV levels by month for Barry, 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 10 9 6 4 3