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Monthly climate in Vermont, Illinois, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Vermont features a humid continental climate (Dfa).Temperatures typically range between -2 °C (28 °F) and 25 °C (78 °F) through the year, but rarely can drop to -30 °C (-22 °F) or can rise to as high as 36 °C (97 °F).The average annual precipitation amounts to about 1133 mm (44.6 inches) and receives 118 rainy days on the 1 mm (0.04 inches) threshold annually.Vermont enjoys an average of 2998 hours of sunshine throughout the year, and daylight varies from 9 hours 20 minutes to 14 hours 59 minutes per day.

Monthly average temperatures in Vermont, Illinois, United States §

The warmest months in Vermont are June, July and August, with daily mean temperatures ranging from 24 to 25 °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 (28 - 35 °F) throughout the day. On average each year, Vermont experiences 109 days above 25 °C (77.0 °F) and 96 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Vermont, 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 15°C
(60°F)		 23°C
(73°F)		 24°C
(76°F)		 29°C
(85°F)		 36°C
(97°F)		 35°C
(96°F)		 36°C
(97°F)		 35°C
(95°F)		 35°C
(94°F)		 32°C
(90°F)		 24°C
(75°F)		 22°C
(71°F)
Mean maximum 13°C
(56°F)		 16°C
(62°F)		 21°C
(71°F)		 28°C
(82°F)		 32°C
(90°F)		 33°C
(92°F)		 35°C
(94°F)		 33°C
(93°F)		 33°C
(91°F)		 30°C
(87°F)		 19°C
(67°F)		 18°C
(64°F)
Average high 2°C
(35°F)		 4°C
(39°F)		 11°C
(52°F)		 16°C
(62°F)		 23°C
(74°F)		 29°C
(84°F)		 30°C
(87°F)		 29°C
(84°F)		 27°C
(81°F)		 19°C
(66°F)		 10°C
(50°F)		 7°C
(44°F)
Daily mean -2°C
(28°F)		 -1°C
(31°F)		 6°C
(43°F)		 11°C
(52°F)		 18°C
(65°F)		 24°C
(75°F)		 25°C
(78°F)		 24°C
(75°F)		 21°C
(70°F)		 13°C
(56°F)		 5°C
(41°F)		 2°C
(35°F)
Average low -7°C
(21°F)		 -6°C
(22°F)		 1°C
(35°F)		 6°C
(42°F)		 13°C
(56°F)		 18°C
(66°F)		 20°C
(69°F)		 18°C
(65°F)		 16°C
(60°F)		 9°C
(48°F)		 0°C
(33°F)		 -3°C
(27°F)
Mean minimum -20°C
(-4°F)		 -20°C
(-4°F)		 -10°C
(15°F)		 -3°C
(27°F)		 4°C
(40°F)		 13°C
(56°F)		 15°C
(60°F)		 13°C
(55°F)		 8°C
(47°F)		 -1°C
(30°F)		 -9°C
(15°F)		 -12°C
(10°F)
Minimum -29°C
(-20°F)		 -30°C
(-22°F)		 -18°C
(1°F)		 -8°C
(18°F)		 1°C
(33°F)		 10°C
(51°F)		 13°C
(56°F)		 12°C
(54°F)		 6°C
(43°F)		 -4°C
(24°F)		 -14°C
(7°F)		 -20°C
(-4°F)

Compare climate in Vermont with other places

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

Monthly average precipitation in Vermont, Illinois, United States §

Vermont usually has the most precipitation in March, May and June, with an average of 12 rainy days and 141 mm (5.5 inches) of precipitation per month.The driest months in Vermont are January, November and December. On average, 56 mm (2.2 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Vermont, 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) 61 (2.4) 67 (2.6) 125 (4.9) 104 (4.1) 166 (6.5) 132 (5.2) 97 (3.8) 91 (3.6) 77 (3.0) 107 (4.2) 58 (2.3) 49 (1.9)
Average precipitation days (≥ 1 mm) 7 10 11 11 16 10 10 9 7 11 9 7

Monthly sunshine hours in Vermont, Illinois, United States §

The sunniest months in Vermont are June, July and August, when the sun shines an average of 11 hours 10 minutes a day.Least sunny months in Vermont: January, February and December receive an average of 5 hours 34 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Vermont, 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 123 181 216 241 284 336 353 337 287 230 203 203
Mean daily daylight hours 9h 39m 10h 40m 11h 58m 13h 18m 14h 25m 14h 59m 14h 40m 13h 40m 12h 24m 11h 4m 9h 55m 9h 20m

Solar UV radiation in Vermont, Illinois, United States §

Vermont 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 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 Vermont UV Index data.

Average daily maximum UV levels by month for Vermont, 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 8 10 11 10 9 8 6 4 2