Chevron right Most sites also have information on the number of days with wet weather. Low Temperature Overnight in December the average temperature drops below freezing at 20.6°F, with the lowest temperature of -25.1°F being recorded on December 25, 1983. Weather in December 2019 in Chicago, Illinois, USA Past Weather in Chicago, Illinois, USA — December 2019 Weather Today Weather Hourly 14 Day Forecast Yesterday/Past Weather Climate (Averages) Currently: 38 °F. In fact December 2019 has only had five days with below normal temperatures in Chicago. Based on weather reports collected during 1985–2015. Overall, Illinois started out 2015 on the cold side but finished with the warmest December on record. Note that seasonal normals in contrast with those observed in Chicago in december with a maximum record of 72°F in 2012 and a minimum record of -0°F in 2016. US Dept of Commerce National Oceanic and Atmospheric Administration National Weather Service Central Illinois 1362 State Route 10 Lincoln, IL 62656 Nov The drier pattern has resulted in well below normal snowfall for December, and without snow on the ground locking in … May The Farmers’ Almanac has just come out with its winter 2020 weather predictions for Illinois, and you’re going to want to hear all about this upcoming season’s brutal temperatures and precipitation. How sunny is it in Illinois in December? The pattern has also been notably drier than much of the autumn was. The December weather guide for Illinois shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. How about a travel guide, so as not to miss a highlight of the city on Lake Michigan in Illinois? Many consider the more moderate temperatures of spring and fall to be the most pleasant. Partly Sunny Days have cloud covering from 40% to 70% of the sky during the daytime.. Total Days With Sun is a sum of the Sunny plus Partly Sunny days. As the sun gradually lowers in the sky in the Northern Hemisphere during the fall, cold arctic and polar air masses intrude farther and farther south into the United States. Oct Average Weather in December in Chicago Illinois, United States. The hottest day in December 1992 was 16 December when the temperature reached 54.9°F. The warm weather Illinois has been experiencing this week is part of a pattern. The average sea temperature around Chicago, Illinois in December is 5°C. Sep Showing: All Year January February March April May June July August September October November December All Year Climate & Weather … The days at Chicago continue to grow colder during December. December weather forecast for Chicago, Illinois. Select a month to view Illinois sunrise & sunset times for the next twelve months. Feb The tables give the normal maximum and minimum temperatures based on weather data collected from 1981 to 2010 by the US National Climatic Data Center. Relative humidity measures the actual amount of moisture in the air as a percentage of the maximum amount of moisture the air can hold. Is the sea cold around Illinois in December? All the numbers are annual averages, made from years of weather watching. This month is known as a chilly month. The average minimum temperature (usually the minimum temperature is noted during the night) in Chicago in December is -7.0°C (19.4°F). December, the first month of the winter, in Decatur, is also a wintry month, with average temperature fluctuating between 21.2°F (-6°C) and 37.4°F (3°C). Metric (°C / mm)  |  Imperial (°F / inches), Get your weekly fix of holiday inspiration from some of the world's best travel writers plus save on your next trip with the latest exclusive offers. The all-time record high temperature in Chicago during December is 71 F (21.7 C). Home | Privacy & Cookies | Contact | About. Select a destination to see more weather parameters. Rain may fall as snow in this month. The highest temperature reported in Illinois was 117°F in East St. Louis on July 14, 1954. These are usually large, intense low-pressure systems that may cover tens of thousands of miles. Average temperatures for December at cities throughout Illinois are listed below. The tables below give monthly averages for rainfall plus snowfall during December at cities in Illinois. Get your weekly fix of holiday inspiration from leading travel writers. The average daily temperature for Chicago in December is a cold 2°C, and this can drop as low to -8°C on average. Apr Jul You can jump to a separate table for each region of the state: Chicago Area, Northern Illinois, Central Illinois and Southern Illinois. It is important to note that some sources, including Wikipedia, have list -37°F in Rochelle on January 15, 2009 as the lowest temperature in Illinois. Phoenix picks up first measurable rainfall in nearly 4 months. Aug *affiliate links: find out how we are funded and why this helps us remain free to use. The daily sunshine reduces to 4 hours with short days of 9 hours in December. Jun You need to prepare to have about 14 days with temperatures under 32°F, or 45% of the month. The amount of rain/snow in December is normal with an average of 63mm (2.5in). Average temperatures for December at cities throughout Illinois are listed below. The weather hasn’t been easy for anyone to calculate lately, so why … Average Weather in December in Springfield Illinois, United States. In December 1992 the average high temperature in Chicago, IL was 36.3°F, and this was 0.5°F cooler than the average of 36.7°F. Thus, the mean temperature average on this month of december in Illinois is 36°F. Note that seasonal normals in contrast with those observed in Illinois in december with a maximum record of 72°F in 2012 and a minimum record of -4°F in 2017. Jan Thus, the mean temperature average on this month of december in Chicago is 36°F. Here is a selection of travel guides: Maldives Weather and Climate in January Chicago Weather … US Dept of Commerce National Oceanic and Atmospheric Administration … There are normally 3 hours of bright sunshine each day in Chicago, Illinois in December - that's 37% of daylight hours. The tables give daily averages along with highest and lowest relative humidity levels. First Choice  FloridaTix  Hoseasons  James Villas  Jet2.com  Jet2holidays  Love Holidays  On the Beach  Rail Europe - formerly Loco2  RHS  Saga Holidays  TUI  Virgin Atlantic  VRBO (formerly HomeAway)  More... We help you find the best travel deals for your holiday in the sun by sharing tips on when and where to go, before providing you with top discounts. Sunshine As well as this, Chicago experiences on average only 3 hours of sun per day in December; the shortest days of the year. Mar Chicago, IL daily average and extreme temperature range for December. Daytime temperatures usually reach 2°C in Chicago, Illinois in December, falling to -7°C at night. However, to me the outstanding feature of 2015 was the wet weather with the wettest June, second wettest December, and sixth wettest year on record. National Climatic Data Center. The high seasonal norm is 40°F. There are usually 12 days with some rain in Chicago, Illinois in December and the average monthly rainfall is 62mm. What's the weather like in Chicago (Illinois) in December 2020? The tables give the normal maximum and minimum temperatures based on weather data collected from 1981 to 2010 by the US National Climatic Data Center. Overnight the average temperature in December is 23.5°F and in 1992 the average overnight temperature was 2.6°F warmer at 26.1°F. Temperature In Decatur, the average high-temperature significantly decreases, from a fresh 51.8°F (11°C) in November, to a cold 37.4°F (3°C).In Decatur, the average low-temperature is 21.2°F (-6°C). January February March April May June July August September October November December; Avg. In most years, Chicago averages a daily maximum temperature for December that's between 29 and 40 degrees Fahrenheit (-2 to 5 degrees Celsius). Are you planning a holiday with hopefully nice weather to Chicago in December 2020? Browse the sunrise & sunset times for Illinois in December 2020. December is in the winter in Chicago and is typically the 3rd coldest month of the year. Below are average maximum temperatures at popular destinations in Illinois in December. Sign up for our email newsletter by entering your email address. Daytime maximum temperatures average around a freezing 2°C (35°F), whilst at night -7°C (20°F) is normal. NOAA's 1981-2010 Climate Normals. The lowest temperature reported in Illinois was -36°F in Congerville on January 5, 1999. The Farmers Almanac Predicts Winter 2020 In Illinois Will Have Frigid Temps And Above Average Amounts Of Snow. The climate in Chicago during December can be summarized as cold and reasonably dry. Snowfall registers, on average, 8.5" (215.9mm) accompanied by 2.3" (58.4mm) of icy rain. The minimum is 31°F. Temperature: The warmest December on record: 40.6 degrees, 10.7 degrees above average. Get the monthly weather forecast for Central, IL, including daily high/low, historical averages, to help you plan ahead. Get the monthly weather forecast for Chicago, IL, including daily high/low, historical averages, to help you plan ahead. Illinois' climate is typically continental with cold winters, warm summers, and frequent short fluctuations in temperature, humidity, cloudiness, and wind direction. Brittany Ferries  Cruise Nation  DFDS  English Heritage  Enterprise  Explore! The rest of the days are mainly overcast, with at least 80% cloud cover. Illinois lies midway between the Continental Divide and the Atlantic Ocean, and the state's southern tip is 500 miles north of the Gulf of Mexico. Average Weather during December in Chicago (Illinois), United States of America. The Illinois sunrise & sunset times shown below are for Chicago. New airline routes & holiday destinations for 2021, Kiwi.com: Book flexible flight, train & bus tickets, VRBO: Holiday rentals with free cancellation, Booking.com sale: at least 30% off UK hotels, Where to go in 2021: Top destinations to rediscover travel, Where to go on holiday in February for the best weather, Where to book family holidays with free child places, Where to go on holiday in January for the best weather, coronavirus (COVID-19) updates for the USA, Alamo: FREE additional driver with USA cars, Book Alamo Gold in the USA & get FREE additional driver, Alamo Gold is only available to UK residents, Discover top Air Canada offers on flights to the USA, Browse the lowest fares available or search by date, Book flights to New York, Orlando, LA, Boston & more. Weather reports from December 2016 in Chicago, Illinois, USA with highs and lows There are normally 3 hours of bright sunshine each day in Chicago, Illinois in December - that's 37% of daylight hours. Get the latest coronavirus (COVID-19) updates for the USA with current travel advice, statistics and online resources. Temperature (°C)-6.2 -3.7 2.4 9.1 15.3 20.7 23.1 22 17.8 11.4 Copyright © 2020 Current Results Publishing Ltd. Precipitation Averages for Illinois in December. Each place has a total for the amount of precipitation it usually receives this month. You can jump to a separate table for each region of the state: Chicago Area, Northern Illinois, Central Illinois and Southern Illinois. Find out more about our data sources. The hottest day on record was December 3, 1982 when the temperature recorded was 71.1°F. The minimum temperature usually falls between 15 and 27 °F (-10 to -3 °C). Disturbances forming along the boundary between the cold polar air and the relatively warm, tropical air sometimes turn into winter storms. The average humidity in December is listed below for places in Illinois. 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