Check in. Check out. Rooms 1 2. Travelers 1 2 3 4 5. Find hotels. Travelers 1 2 3 4. Find flights. Flying from. Find packages in Chicago. Travelers 1 2 3 4 5 6. Find packages. Enhanced Cost of Living Calculator Now includes childcare, taxes, health, housing for home owners vs renters, insurance costs and more when you upgrade to premium. Log In Sign Up. Climate in Chicago, Illinois.
Snowfall Precipitation July High Low Annual Rainfall US Avg: Annual Snowfall US Avg: 25". Precipitation Days US Avg: Sunny Days US Avg: Select Map Options. Reviews for Chicago Reviews. Shortwave radiation includes visible light and ultraviolet radiation. The average daily incident shortwave solar energy experiences extreme seasonal variation over the course of the year.
The brighter period of the year lasts for 3. The brightest month of the year in Chicago is June , with an average of 6. The darker period of the year lasts for 3. The darkest month of the year in Chicago is December , with an average of 1. For the purposes of this report, the geographical coordinates of Chicago are The topography within 2 miles of Chicago is essentially flat , with a maximum elevation change of 69 feet and an average elevation above sea level of feet.
Within 10 miles is essentially flat feet. Within 50 miles contains only modest variations in elevation feet. This report illustrates the typical weather in Chicago, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, to December 31, There are 4 weather stations near enough to contribute to our estimation of the temperature and dew point in Chicago.
For each station, the records are corrected for the elevation difference between that station and Chicago according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations. The estimated value at Chicago is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Chicago and a given station.
To get a sense of how much these sources agree with each other, you can view a comparison of Chicago and the stations that contribute to our estimates of its temperature history and climate. Please note that each source's contribution is adjusted for elevation and the relative change present in the MERRA-2 data. All data relating to the Sun's position e.
This reanalysis combines a variety of wide-area measurements in a state-of-the-art global meteorological model to reconstruct the hourly history of weather throughout the world on a kilometer grid. Names, locations, and time zones of places and some airports come from the GeoNames Geographical Database.
Time zones for airports and weather stations are provided by AskGeo. The information on this site is provided as is, without any assurances as to its accuracy or suitability for any purpose. Weather data is prone to errors, outages, and other defects. We assume no responsibility for any decisions made on the basis of the content presented on this site.
We draw particular cautious attention to our reliance on the MERRA-2 model-based reconstructions for a number of important data series. While having the tremendous advantages of temporal and spatial completeness, these reconstructions: 1 are based on computer models that may have model-based errors, 2 are coarsely sampled on a 50 km grid and are therefore unable to reconstruct the local variations of many microclimates, and 3 have particular difficulty with the weather in some coastal areas, especially small islands.
We further caution that our travel scores are only as good as the data that underpin them, that weather conditions at any given location and time are unpredictable and variable, and that the definition of the scores reflects a particular set of preferences that may not agree with those of any particular reader.
Please review our full terms contained on our Terms of Service page. You're permitted to use this graph as long as you provide prominent attribution with a link back close to the use of the graph. For print usage, please acquire a license. Full Year. Spring Summer Fall Winter.
Climate in Chicago Link. History: Chicago weather by month. Click on each chart for more information. The daily average high red line and low blue line temperature, with 25th to 75th and 10th to 90th percentile bands. The thin dotted lines are the corresponding average perceived temperatures. Average Hourly Temperature in Chicago Link. The average hourly temperature, color coded into bands. The shaded overlays indicate night and civil twilight.
Compare Chicago to another city:. Cloud Cover Categories in Chicago Link. The percentage of time spent in each cloud cover band, categorized by the percentage of the sky covered by clouds. Daily Chance of Precipitation in Chicago Link. The percentage of days in which various types of precipitation are observed, excluding trace quantities: rain alone, snow alone, and mixed both rain and snow fell in the same day.
Average Monthly Rainfall in Chicago Link. The average rainfall solid line accumulated over the course of a sliding day period centered on the day in question, with 25th to 75th and 10th to 90th percentile bands. The thin dotted line is the corresponding average snowfall.
Average Monthly Snowfall in Chicago Link.
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