Storms exceeding the normal winter value are possible within one day mainly in the southern half of the state. [5] Illinois is vulnerable to tornadoes with an average of 35 occurring annually, which puts much of the state at around 5 tornadoes per 10,000 square miles (30,000 km2) annually. Get the latest coronavirus (COVID-19) updates for the USA with current travel advice, statistics and online resources.. Below are average maximum temperatures at popular destinations in Illinois for next month - January. Average yearly precipitation for Illinois varies from just over 48 inches (1,200 mm) at the southern tip to just under 32 inches (810 mm) in the northern portion of the state. Chicago weather averages and climate Chicago, Illinois. History for Rochelle, IL: January 15, 2009. Monthly: 1981-2010 normals History: 2015-2019 Av. A climate graph showing rainfall, temperatures and normals. May and June are the wettest months of the year. [4] Illinois also receives the remnants of tropical cyclones which have struck the Gulf coast. Winter Weather Preparedness and Spotter Webinar! Monthly averages Chicago Longitude: -87.6298, Latitude: 41.8781 Average weather Chicago, IL - 60679. Chicago's coldest month is January when the average temperature overnight is 14.3°F. Monthly temperature, precipitation and hours of sunshine. Illinois is vulnerable to tornadoes with an average of 54 occurring annually, which puts much of the state at around 9.7 tornadoes per 10,000 square miles (30,000 km2) annually. December 8th, 2020 December 7th, 2020 December 6th, 2020 December 5th, 2020 December 4th, 2020 December 3rd, 2020 December 2nd, 2020 December 1st, 2020 November 30th, 2020 November 29th, 2020 November 28th, 2020 November 27th, 2020 November 26th, 2020 November 25th, 2020 November 24th, 2020 November 23rd, 2020 November 22nd, 2020 November 21st, 2020 November 20th, 2020 … Recent Weather in Chicago; Average high and low temperatures, total snowfall and precipitation for each year since 2010. A slight chance of rain showers, snow showers, and freezing rain before 8am, then a slight chance of rain and snow showers between 8am and 10am, then a slight chance of rain showers after 10am. Current Local Weather Conditions. [20], Illinois averages around 50 days of thunderstorm activity a year which put it somewhat above average for the number of thunderstorm days for the United States. [2] Peak tornado activity occurs between April and June. Station Data. Weather.com brings you the most accurate monthly weather forecast for with average/record and high/low temperatures, precipitation and more. Normal annual snowfall exceeds 38 inches or 0.97 m in Chicago, while the southern portion of the state normally receives less than 14 inches or 0.36 m.[1] The highest temperature recorded in Illinois was 117 °F (47.2 °C), recorded on July 14, 1954, at East St. Louis, while the lowest temperature was −38 °F (−38.9 °C), recorded on January 31, 2019, at Mt Carroll, Illinois. Thunderstorms contribute over half of the annual precipitation statewide. Report Station. In summer, the relatively cooler lake leads to a more stable atmosphere near the lake shore, reducing rainfall potential. Based on weather reports collected during 1985–2015. Monthly: 1981-2010 normals Chicago Area Weather Roundup Illinois State Weather Roundup Indiana State Weather Roundup Wisconsin State Weather Roundup Michigan State Weather Roundup Iowa State Weather Roundup . Most of Illinois has a humid continental climate (Köppen climate classification Dfa) with hot, humid summers and cool to cold winters. [11] In 2019, the January North American Cold Wave struck Illinois. Average precipitation in : Av. Also view: monthly average temperatures, precipitation, snow depth, wind speed, air quality and pollution. Averages are for Chicago Midway Airport, which is 9 miles from Chicago. Chicago, Illinois - Travel and vacation weather averages, current conditions and forecasts. The tables give the normal maximum and minimum yearly temperatures based on weather data collected from 1981 to 2010 by the US National Climatic Data Center. See the current Chicago, IL weather and a 5 day forecast. : Hours of sunshine, Hi : Average high in ºF - Lo : Average low in ºF - Pre. Stations: Belleville Big Bend Bondville Brownstown Carbondale Champaign DeKalb Dixon Springs Fairfield Freeport Monmouth Olney Peoria Perry Rend Lake Snicarte Springfield Stelle St. Charles. Chicago Monthly Weather Forecast 5 days , 7 days , 10 day , 14 days , 15 days … To find out how often it rises over 70, 80 or 90 °F each month in Chicago, scroll down farther. : Average precipitation in inch - Days precip. [4], Due to the urban heat island effect, cities tend to be 2 °F or 1.1 °C warmer on average, which is most noticeable overnight. Hourly weather conditions in Illinois and surrounding states. Cloudy, with a high near 43. 31 F Chicago Midway International Airport Station | Report. Thursday, December 10th; NWS Chicago Winter 2020-21 Outlook (Including Webinar Recording and PDF) Provide Your Feedback about Frost and Freeze Products Issued by the National Weather Service Annual Weather Averages Near Chicago. During the winter of 1830–31, southern sections of the state were covered with 3 feet (0.91 m) of snow, with drifts up to 6 feet (1.8 m) tall. Illinois averages around 50 days of thunderstorm activity a year which put it somewhat above average for number of thunderstorm days for the United States. Illinois climate guide. Average annual temperatures for cities throughout Illinois are listed below. Lake Michigan Marine Observations Illinois Climate Network: Weather Data Station Data. The Climate of Illinois describes the weather conditions, and extremes, noted within the state of Illinois, United States, over time. Weather History for Places in Illinois . Sky conditions give the general state of the sky, and the height of each cloud layer. The first set of high and low temperatures are averages for 2010 to 2019. Extreme temperatures changes can occur within minutes with the passage of a strong cold front through the state. : Days with precipitation - Hours sun. [2] [3]The deadliest tornado on record in the nation occurred largely in Illinois. Weather described as "fair" means that no clouds were observed below 12,000 feet. Thank you for reporting this station. The starting point for official government weather forecasts, warnings, meteorological products for forecasting the weather… precipitation in Jan: January, Feb: February, ...Jan: January, Feb: February, ...Ja: January, Fe: February, ... © US Climate Data 2020 | version 3.0 | by Your Weather Service |, Average precipitation in : Av. The heaviest snowfall recorded in Chicago history was 23 inches (0.58 m) during the Blizzard of 1967. State-wide Map Data : Air Temperature: Wind Data: Other Weather … 19° July is on average the WARMEST month. Station Data. [8] Until 2019, the lowest temperature was −37 °F (−38.3 °C), recorded on January 15, 2009, at Rochelle. "Illinois Climate Records and Averages, Illinois State Climatologist Office, Illinois State Water Survey, U of I", "The Deep Snow: Winter of 1830–31 has legends that Chicago's records fail to shake", https://en.wikipedia.org/w/index.php?title=Climate_of_Illinois&oldid=983293102, Creative Commons Attribution-ShareAlike License, This page was last edited on 13 October 2020, at 12:08. Flooding is the most damaging weather hazard within the state. Lake Michigan leads to an increase in winter precipitation along its south shore due to lake effect snow forming over the relatively warm lakes. Illinois City, Illinois - Travel and vacation weather averages, current conditions and forecasts. [21], 22. https://www.ncdc.noaa.gov/extremes/scec/records/IL, most deadly heatwave in the history of the United States, List of wettest known tropical cyclone remnants in Illinois, Annual average number of tornadoes, 1991-2010, "Average Annual Number of EF0-EF5 Tornadoes 1991-2010", "NWS Paducah, KY: NOAA/NWS 1925 Tri-State Tornado Web Site -- General Information". Average yearly precipitation for Illinois varies from 48 inches or 1,220 mm at the southern tip to 35 inches or 890 mm in the northern portion of the state. There are also monthly and yearly counts of days with freezing weather. [6] The most deadly heatwave in the history of the United States struck Illinois during July 1936, which killed 2,656 people.[7]. high : Average high in ºF - Av.low : Average low in ºF - Av. Critical fire weather conditions are forecast over portions of California today and Tuesday due to dry conditions and strong offshore winds. Increased warming within urban heat islands leads to an increase in rainfall downwind of cities. The Tri-State Tornado of 1925 killed 695 people in three states; 613 of the victims lived in Illinois. precip. US Geography / US Weather / Illinois Weather Addison Algonquin Alsip Altamont Alton Arcola Arlington Heights Atlanta Aurora Barrington Bedford Park Belleville Benton Bloomingdale … [5], The highest temperature recorded in Illinois was 117 °F (47.2 °C), recorded on July 14, 1954, at East St. Louis. Everything else here is based on 1981 to 2010 weather. See Historical Weather Data for a Location and Date. The Climate of Illinois describes the weather conditions, and extremes, noted within the state of Illinois, United States, over time. Select a destination to see the climate guide for all months of the year. The highest monthly average temperature in Burbankfor July is 76 degrees The lowest monthly average temperature in Burbank for January is 26 degrees The most monthly precipitation in Burbank occurs in August with 5.1 inches The air quality index in Burbank is 11% worse than the national average US Dept of Commerce National Oceanic and Atmospheric Administration National Weather Service Central Illinois 1362 State Route 10 Lincoln, IL 62656 You can jump to a separate table for each region of the state: Chicago Area, Northern Illinois, Central Illinois and Southern Illinois. On December 20, 1836, temperatures fell 40 °F or 22.2 °C in minutes, which supposedly froze people to their saddles and chickens in their tracks. In July, the warmest month, the average day time temperature rises to 83.5°F. Illinois Weather. [9] However, Illinois did not officially recognize this measurement, as it was made from a small airport and there were no quality control procedures applied to the measurement. Weather.com brings you the most accurate monthly weather forecast for with average/record and high/low temperatures, precipitation and more. One of the wetter systems, Tropical Storm Claudette, impacted the state in July 1979 bringing rainfall amounts up to 7.64 inches (194 mm). The Tri-State Tornado of 1925 killed 695 people in three states; 613 of the victims lived in Illinois. Illinois Weather - Monthly averages for temperatures and rainfall. [5] The deadliest tornado on record in the nation occurred largely in Illinois. The 1995 Chicago heat wave was one of the worst weather-related disasters in state history, with 525 dead within a five-day period as overnight lows remained as high as 84 °F (28.9 °C) and daytime highs reached up to 106 °F (41.1 °C). This resulted in a new record low temperature, −38 °F (−38.9 °C), recorded on January 31, 2019, at Mt Carroll, Illinois. Get the monthly weather forecast for Chicago, IL, including daily high/low, historical averages, to help you plan ahead. January is on average the COOLEST month. Chance of precipitation is 20%. The southernmost part of the state, from about Carbondale southward, and the eastern suburbs of St. Louis, has a humid subtropical climate (Köppen Cfa) with more moderate winters. Wind gusts may reach 60 to 70 mph in some locations. Because of its nearly 400 miles (640 km) length and mid-continental placement, Illinois has a widely varying climate. US Dept of Commerce National Oceanic and Atmospheric Administration National Weather Service St. Louis, MO 12 Missouri Research Park Drive St. Charles, MO 63304-5685 [10] As a result, the official record-lowest temperature for the state was −36 °F (−37.8 °C) recorded at Congerville on 5 January 1999. Monthly averages Champaign Longitude: -88.2434, Latitude: 40.1164 Average weather Champaign, IL - 61820. This is a limitation of all automated stations, which make up nearly all observations in the list. Here are normal monthly and seasonal temperatures and precipitation as well as selected … Calm wind becoming east around 6 mph. Chicago, IL Weather History star_ratehome. Government Internet Service Home page. precipitation in. Year * Month * Day * Data is available up to December 3, 2020. [5], While normal annual snowfall exceeds 38 inches (0.97 m) in Chicago, the southern portion of the state normally receives less than 14 inches (0.36 m). Recent weather for: Moline Peoria Rockford Springfield. [1] The snowiest winter on record for Chicago was 89.7 inches (2.28 m) during the winter of 1978–79. Get the monthly weather forecast for Mount Sterling, IL, including daily high/low, historical averages, to help you plan ahead. 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