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. From bottom (most yellow) to top (most gray), the color bands indicate: full daylight, twilight (civil, nautical, and astronomical), and full night. There are 4 weather stations near enough to contribute to our estimation of the temperature and dew point in Chicago. The average daily shortwave solar energy reaching the ground per square meter (orange line), with 25th to 75th and 10th to 90th percentile bands. We draw particular cautious attention to our reliance on the MERRA-2 model-based reconstructions for a number of important data series. Monthly averages Chicago Longitude: -87.6298, Latitude: 41.8781 Average weather Chicago, IL - 60679. To show variation within the month and not just the monthly total, we show the rainfall accumulated over a sliding 31-day period centered around each day. Daylight saving time is observed in Chicago during 2020, but it neither starts nor ends during April, so the entire month is in daylight saving time. Shortwave radiation includes visible light and ultraviolet radiation. The black line is the percentage chance that a given day is within the growing season. 38.5 inches. Daytime temperatures usually reach 15°C in Chicago, Illinois in April, falling to 3°C at night. The minimum is 47°F. What's the Average Temperature in Illinois? All other weather data, including cloud cover, precipitation, wind speed and direction, and solar flux, come from NASA's Maps are © Esri, with data from National Geographic, Esri, DeLorme, NAVTEQ, UNEP-WCMC, USGS, NASA, ESA, METI, NRCAN, GEBCO, NOAA, and iPC. The horizontal axis is the day, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day. The Illinois sunrise & sunset times shown below are for 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 offersGet your weekly fix of holiday inspiration from leading travel writersNew airline routes & holiday destinations for 2020/2021Where to go on holiday in September for the best weatherWhere to go on holiday in October for the best weatherWhere to go on holiday in August for the best weatherWhere to go on holiday in July for the best weather The solar day over the course of April. The average date of the first fall frost is October 17.. 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. Weather data is prone to errors, outages, and other defects. The day, twilights (civil, nautical, and astronomical), and night are indicated by the color bands from yellow to gray. For the purposes of this report, the geographical coordinates of Chicago are 41.850 deg latitude, -87.650 deg longitude, and 594 ft elevation.

Based on weather reports collected during 1985–2015. The day, twilights (civil, nautical, and astronomical), and night are indicated by the color bands from yellow to gray. Over the course of April in Springfield, the length of the day is The daily average high (red line) and low (blue line) temperature, with 25th to 75th and 10th to 90th percentile bands. The shaded overlays indicate night and civil twilight. Chicago is located near a large body of water (e.g., ocean, sea, or large lake).

Daily low temperatures increase by 10°F , from 40°F to 50°F , rarely falling below 28°F or exceeding 63°F .

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