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MOBILE DEVICE? Turn sideways. Weather conditions directly above are near Lakefront. Top tabs refer to O'Hare (official).

Archives for the SPC Convective Outlook are updated daily (approximately) with a live map at the beginning of each article. Follow the link at the end of the article to check for current updates on the NOAA/NWS Storm Prediction Center website. Also, see Archives for Chicago's hourly weather data on CARDINAL NEWS Magazine.

ARLINGTON HEIGHTS WEATHER

Friday, January 1, 2010

CHICAGO SNOWFALL RECORDS

First Snowfall

Trace or More
Average Date: October 30th
Earliest: September 25, 1942 (Trace)
           September 25, 1948 (Trace)
Latest:          December 5, 1999 (0.1 inches)

Measurable (0.1 inches or more)
Average Date: November 16th
Earliest:  October 18, 1989 (0.7 inches)
           October 18, 1972 (0.2 inches)
Latest:          December 16, 1965 (0.3 inches)
One Inch or More

Average Date:  December 2nd
Earliest:  October 19th, 1989 (3.8 inches)
Latest:          January 17, 1899 (1.0 inch)kkk


Seasonal Snowfall
Average Snowfall from Fall through Spring (1971-2000): 38.0 inches
Least amount of snowfall: 9.8 inches (1920-1921 season)
Greatest amount of snowfall: 89.7 inches (1978-1979 season)

Monthly Snowfall

GreatestLeast
January42.5 inches (1918)0.2 inches (1928)
February27.8 inches (1896)Trace (1998, 1987)
March23.1 inches (1926)Trace (2000, 97, 94, 21, 1910)
April13.6 inches (1938)Zero (Numerous Years)
May2.2 inches (1940)Zero (Numerous Years)
JuneTrace (1910)Zero (Numerous Years)
SeptemberTrace (1942, 1928)Zero (Numerous Years)
October6.3 inches (1989)Zero (Numerous Years)
November14.8 inches (1940)Zero (1999, 2001)
December33.3 inches (1951)Trace (December 1912, 1889)

SOURCE:
http://www.crh.noaa.gov/lot/winter/chi_snow_statistics.php

See also ...
Snow Probability Forecasts
http://www.hpc.ncep.noaa.gov/wwd/winter_wx.shtml

CHICAGO O'HARE CURRENT AND HISTORY (3-DAY) ...


Arlingtoncardinal.com/weather


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WunderMap® with Temperature/Wind Data || Google: O'Hare  Temps | NE Illinois Temps
Full Screen Motion Weather Radar (Wunderground.com) Midwest Cloud Cover and Arlington Heights Weather Forecast

SUNLIGHT DATA FOR SECURITY, TRAFFIC SAFETY, AND SPORTS
SunCalc.net data with azimuth & trajectory, times for dawn, sunrise, solar noon, sunset, dusk ...
SUNRISE AND SUNSET TIMES IN UTC (if you're not logged in to Google)
CHICAGO UTC-6 during CST (Central Standard Time, e.g., winter)
CHICAGO UTC-5 during CDT (Daylight Savings Time, e.g., summer)