Chicago’s Temperature Records
Chicago’s 100's
Daily high temperatures of 100 degrees or greater recorded in Chicago-from earliest to most recent.
Date
|
Temperature
|
| July 16, 1887 | 100 |
| July 17, 1887 | 100 |
| July 10, 1901 | 102 |
| July 21, 1901 | 103 |
| *July 3, 1911 | 100 |
| *July 4, 1911 | 102 |
| *July 5, 1911 | 102 |
| July 27, 1916 | 100 |
| July 30, 1916 | 102 |
| August 5, 1918 | 102 |
| August 6, 1918 | 101 |
| August 12, 1918 | 101 |
| July 19, 1930 | 101 |
| June 7, 1933 | 100 |
| June 27, 1933 | 100 |
| June 1, 1934 | 102 |
| July 22, 1934 | 101 |
| July 24, 1934 | 105 |
| August 8, 1934 | 100 |
| July 10, 1936 | 102 |
| September 7, 1939 | 100 |
| July 24, 1940 | 101 |
| July 25, 1940 | 101 |
| July 17, 1942 | 100 |
| June 27, 1944 | 100 |
| July 18, 1946 | 100 |
| *August 4, 1947 | 100 |
| *August 5, 1947 | 100 |
| *August 6, 1947 | 101 |
| August 24, 1947 | 100 |
| July 3, 1949 | 102 |
| June 28, 1952 | 101 |
| June 19, 1953 | 102 |
| June 20, 1953 | 104 |
| September 1, 1953 | 101 |
| September 2, 1953 | 101 |
| June 25, 1954 | 100 |
| July 27, 1955 | 100 |
| July 1, 1956 | 103 |
| September 7, 1960 | 100 |
| June 27, 1971 | 101 |
| June 28, 1971 | 101 |
| July 10, 1976 | 100 |
| July 7, 1980 | 102 |
| July 20, 1980 | 101 |
| July 22, 1983 | 100 |
| July 28, 1983 | 100 |
| **June 20, 1988 | 104 |
| **June 21, 1988 | 101 |
| **June 25, 1988 | 103 |
| **July 14, 1988 | 100 |
| **July 15, 1988 | 102 |
| **August 1, 1988 | 100 |
| **August 2, 1988 | 100 |
| July 10, 1989 | 101 |
| July 22, 1991 | 101 |
| August 2, 1991 | 101 |
| July 13, 1995 | 104 |
| July 14, 1995 | 100 |
| July 30, 1999 | 101 |
| July 24, 2005 | 102 |
| June 28, 2012 | 100 |
| * July 4, 2012 | 102 |
| * July 5, 2012 | 103 |
| * July 6, 2012 | 103 |
* Greatest number of consecutive 100 degree days (3)
**Greatest number of 100 degree days in one year (7)
Number of Days of 100 degrees or More by Decade
| 1872-1879 | 0 |
| 1880-1889 | 2 |
| 1890-1899 | 0 |
| 1900-1909 | 2 |
| 1910-1919 | 8 |
| 1920-1929 | 0 |
| 1930-1939 | 9 |
| 1940-1949 | 10 |
| 1950-1959 | 8 |
| 1960-1969 | 1 |
| 1970-1979 | 3 |
| 1980-1989 | 12 |
| 1990-1999 | 5 |
| 2000-2009 | 1 |
| 2010-2012 | 4 |
Greatest Consecutive Number of Days in Each
Year with Maximum Temperature 90 Degrees or Higher
| 1871…0 | 1872…4 | 1873…2 | 1874...3 | 1875…0 | 1876…4 |
| 1877…1 | 1878…2 | 1879…3 | 1880…4 | 1881…3 | 1882…1 |
| 1883…3 | 1884…1 | 1885…2 | 1886…1 | 1887…3 | 1888…2 |
| 1889…2 | 1890…3 | 1891…3 | 1892…5 | 1893…3 | 1894…3 |
| 1895…4 | 1896…4 | 1897…3 | 1898…5 | 1899…1 | 1900…8 |
| 1901…2 | 1902…1 | 1903…5 | 1904…3 | 1905…3 | 1906…3 |
| 1907…1 | 1908…3 | 1909…2 | 1910…3 | 1911…6 | 1912…2 |
| 1913…3 | 1914…3 | 1915…1 | 1916…5 | 1917…4 | 1918…4 |
| 1919…3 | 1920…5 | 1921…5 | 1922…4 | 1923…8 | 1924…1 |
| 1925…3 | 1926…3 | 1927…4 | 1928…2 | 1929…2 | 1930…5 |
| 1931…6 | 1932…5 | 1933…3 | 1934…8 | 1935…2 | 1936…5 |
| 1937…2 | 1938…2 | 1939…4 | 1940…7 | 1941…3 | 1942…3 |
| 1943…4 | 1944…7 | 1945…3 | 1946…3 | 1947…8 | 1948…8 |
| 1949…6 | 1950…2 | 1951…2 | 1952…5 | 1953…11 | 1954…11 |
| 1955…11 | 1956…5 | 1957…3 | 1958…2 | 1959…11 | 1960…5 |
| 1961…3 | 1962…6 | 1963…3 | 1964…7 | 1965…2 | 1966…4 |
| 1967…2 | 1968…5 | 1969…5 | 1970…7 | 1971…4 | 1972…4 |
| 1973…10 | 1974…3 | 1975…4 | 1976…3 | 1977…9 | 1978…6 |
| 1979…1 | 1980…9 | 1981…2 | 1982…2 | 1983…9 | 1984…4 |
| 1985…4 | 1986…5 | 1987…10 | 1988…9 | 1989…2 | 1990…2 |
| 1991…5 | 1992…2 | 1993…2 | 1994…6 | 1995…5 | 1996…3 |
| 1997…5 | 1998…3 | 1999…5 | 2000…3 | 2001…5 | 2002…5 |
| 2003…2 | 2004…1 | 2005…8 | 2006…6 | 2007…4 | 2008...3 |
| 2009...3 | 2010...5 | 2011...5 |
2012...7
|
Greatest Consecutive Number of Days with
Maximum Temperature 90 Degrees or Higher
| 11 days: | 10 days: |
| August 24-September 3, 1953 | August 25-September 3, 1973 |
| June 11-21, 1954 | July 17-26, 1987 |
| July 26-August 5, 1955 | |
| August 19-29, 1959 |
Greatest Number of Days with Maximum
Temperature 90 Degrees or Higher in any Year*
| 1) 47 (1988) | 6) 35 (1964 and 1971) |
| 2) 46 (1955) | 7) 34 (1944) |
| 3) 39 (1959) | 8) 33 (1977 and 1987) |
| 4) 38 (1952) | 9) 32 (1934) |
| 5) 36 (1954) |
*The normal amount of days where the maximum temperature reaches at least 90 degrees:
O’Hare…18
Midway…21
Northerly Island…10
Greatest Number of Days with Maximum
Temperature 90 Degrees or Higher by Month
| 2 (April 1930) | 18 (August 1947) |
| 10 (May 1977) | 8 (September 1959 and 1971) |
| 16 (June 1954) | 2 (October 1971) |
| 19 (July 1955 and 1987) |
Least Number of Days with Maximum
Temperature 90 Degrees or Higher in any Year
| 0 (1871 and 1875) | 3 (2004 and 1902) |
| 1 (1882 and 1915) | 4 (1904, 1907, 1917, 1967, and 2000) |
| 2 (1889 and 1979) | 5 (1909) |
Lowest Temperatures Recorded
in Chicago (-16 Degrees and Lower)
-16
|
January 2, 1879
|
-19
|
January 16, 1977
|
January 15, 1893
|
January 14, 1979
| ||
January 26, 1897
|
January 9, 1982
| ||
January 7, 1912
|
January 19, 1994
| ||
January 18, 1930
| |||
January 29, 1966
|
-20
|
January 9, 1875
| |
January 16, 1994
|
January 25, 1879
| ||
January 6, 2014
|
January 20, 1984
| ||
-17
|
February 8, 1899
|
-21
|
December 22, 1872
|
February 12, 1899
|
February 9, 1899
| ||
January 22, 1936
|
December 23, 1983
| ||
February 5, 1979
|
January 18, 1994
| ||
December 25, 1983
| |||
January 15, 1994
|
-22
|
January 21, 1984
| |
-18
|
December 23, 1872
|
-23
|
December 24, 1872
|
February 23, 1873
|
January 17, 1982
| ||
January 3, 1876
| |||
January 5, 1884
|
-25
|
January 16, 1982
| |
February 10, 1899
|
December 24, 1983
| ||
February 13, 1905
| |||
January 23, 1963
|
-26
|
January 10, 1982
| |
December 22, 1983
|
-27 January 20, 1985* (wind chill reached –60 with sustained winds around 25 mph)
Lowest Daily Mean Temperatures Recorded
in Chicago (-10 Degrees and Lower)
| -10 | January 4, 1884 | -13 | January 16, 1977 |
| January 15, 1893 | |||
| January 26, 1897 | -14 | February 9, 1899 | |
| February 10, 1899 | December 23, 1983 | ||
| January 20, 1984 | |||
| -15 | January 25, 1879 | ||
| -11 | January 5, 1885 | January 10, 1982 | |
| February 8, 1888 | |||
| February 13, 1905 | -16 | January 20, 1985 | |
| January 23, 1963 | January 18, 1994 | ||
| December 25, 1983 | |||
| January 15, 1994 | -18 | December 24, 1983 | |
| February 2, 1996 | |||
| -12 | February 9, 1933 | ||
| February 3, 1996 |
Greatest Consecutive Number of Days in Each
Year with Minimum Temperature Zero Degrees or Lower
1872…4
|
1873…5
|
1874....2
|
1875…8
|
1876…3
|
1877…2
|
1878…2
|
1879…5
|
1880…5
|
1881…1
|
1882…2
|
1883…6
|
1884…5
|
1885…6
|
1886…3
|
1887…3
|
1888…6
|
1889…3
|
1890…2
|
1891…2
|
1892…3
|
1893…5
|
1894…2
|
1895…4
|
1896…3
|
1897…3
|
1898…3
|
1899…7
|
1900…5
|
1901…4
|
1902…4
|
1903…4
|
1904…3
|
1905…5
|
1906…0
|
1907…3
|
1908…1
|
1909…2
|
1910…2
|
1911…1
|
1912…10
|
1913…1
|
1914…2
|
1915…3
|
1916…3
|
1917…5
|
1918…3
|
1919…3
|
1920…2
|
1921…0
|
1922…2
|
1923…2
|
1924…3
|
1925…2
|
1926…2
|
1927…3
|
1928…3
|
1929…3
|
1930…3
|
1931…0
|
1932…2
|
1933…3
|
1934…3
|
1935…4
|
1936…7
|
1937…0
|
1938…1
|
1939…0
|
1940…3
|
1941…2
|
1942…7
|
1943…2
|
1944…2
|
1945…6
|
1946…2
|
1947…2
|
1948…3
|
1949…2
|
1950…2
|
1951…3
|
1952…1
|
1953…1
|
1954…1
|
1955…4
|
1956…0
|
1957…3
|
1958…3
|
1959…2
|
1960…3
|
1961…2
|
1962…4
|
1963…9
|
1964…0
|
1965…8
|
1966…4
|
1967…2
|
1968…6
|
1969…1
|
1970…5
|
1971…4
|
1972…3
|
1973…1
|
1974…2
|
1975…2
|
1976…3
|
1977…5
|
1978…4
|
1979…7
|
1980…2
|
1981…3
|
1982…6
|
1983…5
|
1984…4
|
1985…5
|
1986…4
|
1987…3
|
1988…7
|
1989…5
|
1990…2
|
1991…1
|
1992…2
|
1993…2
|
1994…8
|
1995…2
|
1996…6
|
1997…4
|
1998…1
|
1999…3
|
2000…6
|
2001…1
|
2002…2
|
2003…1
|
2004…3
|
2005…1
|
2006…1
|
2007…6
|
2008...2
|
2009...4
|
2010…1
|
2011…2
|
2012…0
|
Greatest Consecutive Number of Days
with Minimum Temperature Zero or Lower
| 10 days: | 9 days: |
| January 4-January 13, 1912 | December 13-21, 1963 |
Greatest Number of Days in a Month
with a Minimum of Zero or Less
| 17 | January, 1977 | 13 | January, 1887 |
| January, 1888 | |||
| 15 | January, 1963 | January, 1912 | |
| February, 1936 | |||
| 14 | February, 1875 | January, 1982 | |
| January, 1979 | |||
| 12 | January, 1885 |
Greatest Number of Days During
Winter with Temperatures Below Zero
1884-85…25
|
1935-36…24
|
1962-63…24
|
1981-82…22
|
1874-75…21
|
1978-79…21
|
1872-73…19
|
Winters without any Zero or Lower Temperature*
Lowest Temperature that winter in parentheses
1881-82 (1)
|
1938-39 (2)
|
1905-06 (6)
|
1955-56 (2)
|
1930-31 (6)
|
1959-60 (6)
|
1931-32 (1)
|
1982-83 (3)
|
1936-37 (1)
|
2011-12 (5)
|
*(Normally there are 13 days of sub-zero low temperatures)
Years without any Zero or Lower Temperature
Lowest Temperature that year in parentheses
1906 (6)
|
1939 (3)
|
1921 (8)
|
1956 (2)
|
1931 (6)
|
1964 (2)
|
1937 (1)
|
2012 (5)
|
Longest Continuous Period Below Freezing
43 days
|
December 28, 1976-February 8, 1977
|
33 days
|
January 15, 1985-February 16, 1985
|
29 days
|
December 18, 1878-January 15, 1879
|
January 22, 1895-February 19, 1895
| |
28 days
|
January 22, 1905-February 18, 1905
|
December 28, 1917-January 24, 1918
|
Longest Consecutive Number of Hours Below Zero
100 hours
|
December 22nd -December 25, 1983
|
First Freeze of the Season
| Average Date: | October 15th |
| Earliest Date: | September 22, 1995 (32) |
| Latest Date: | November 24, 1931 (30) |
Last Spring Freeze of the Season
| Average Date: | April 23rd |
| Earliest Date: | March 19, 1925 (28) |
| Latest Date: | May 25, 1992 (32) |
First Killing Frost (28 Degrees or Lower)
| Average Date: | October 27th |
| Earliest Date: | October 2, 1974 (28) |
| Latest Date: | December 3, 1899 (27) |
Largest Temperature Change from One Day to the Next
High and Low temperatures for the days in parentheses
| Drop of 61 Degrees: | November 11-12, 1911 | (74/32; 32/13) |
| Drop of 58 Degrees: | February 8-9, 1900 | (62/10; 19/4) |
| December 13-14, 1901 | (49/8; 8/-9) | |
| Drop of 57 Degrees: | January 18-19, 1996 | (61/13; 13/4) |
| Rise of 58 Degrees: | February 13-14, 1887 | (30/0; 58/18) |
| March 10-11, 1972 | (40/15; 73/30) | |
| Rise of 56 Degrees: | April 9-10, 1977 | (62/29; 85/48) |
| April 23-24, 1986 | (63/25; 81/47) |
Biggest Range in a Single Calendar Day
High and Low temperature in parentheses
| 52 Degrees: | February 8, 1900 | (62/10) |
| 51 Degrees: | February 21, 1873 | (40/-11) |
| January 13, 1888 | (42/-9) | |
| 49 Degrees: | March 29, 1895 | (80/31) |
Greatest One Hour Drop in Temperature
30 Degrees March 26, 1908
|
71 degrees at 2 pm and dropped to 41 degrees at 3pm.
|
:
Other Significant Temperature Changes
| April 20, 1936-The temperature fell from 82 degrees to 55 in 10 minutes. Thereafter, the temperature fell to 32 degrees by 4am on the 21st. |
| January 30, 1938-The temperature fell from 45 degrees at 7am to zero 24 hours later. |
| May 9, 1963-Grant Park, Lake Effect. 22 degree drop from 84 degrees to 62 in 150 seconds. |
SOURCE:
National Weather Service Chicago: Chicago's Temperature Records
CHICAGO O'HARE CURRENT AND HISTORY (3-DAY) ... | NWS Chicago Office OBSERVED WEATHER REPORTS
HOMETOWN WEATHER: Arlington Heights Weather Forecast -- Arlingtoncardinal.com/weather
LIVE RADAR | STORM TRACKS | CLOUDS INFRARED SAT | CLOUDS VISIBLE SAT (during daylight)
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 ...
