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CHICAGO
WEATHER EXTREMES Temperature
(in degrees Farenheit) Highest
Temperature 105
on July 24, 1934 Latest
Date, Hottest Day of the Year Lowest
Temperature -27
on January 20, 1985 Earliest
Day to Fall to 32 Degrees 32
on September 22, 1995 Earliest
Day to Fall Below 32
Degrees 29
on September 23, 1995 Latest
Day to Fall to 32 Degrees 32
on May 25, 1992 Latest
Day to Fall Below 32
Degrees 31
on May 21, 2002 Warmest
Month 81.3
in July 1955 Coldest
Month 10.1
in January 1977 Coldest
11-Day Period 0.6
average temperature from January 7-17,
1982. The period included a record low of
-26 on Jan. 10 (surpassed by -27 on
Jan. 20, 1985) and a record low-max of
-4 on Jan. 10. The period also
included a record low of -25 (Jan.
16) and a record low of -23 (Jan.
17). Ten of the eleven days had nightly
lows below zero (-6, -3, -19, -26, -4, -1,
6, -10, -9, -25, -23). Warmest
Season 76.4
Summer (June-August) of 1955 Coldest
Season 18.3
Winter (December-February) of
1903-1904. Warmest
Year 54.5
in 1921 Coldest
Year 45.1
in 1875 Highest
Dew Point 82
on July 29-30 1999 Precipitation
(in inches)
Wettest
Year 49.35
in 1983 Driest
Year 22.22
in 1962 Wettest
Season 23.48
Summer (June-August) of 1987 Driest
Season 1.60
Winter (December-February) of
1930-1931 Wettest
Month 17.10
in August 1987 Driest
Month 0.01
in September 1979 Greatest
in 24 hours 9.35
in August 13-14, 1987 Greatest
in calendar day 6.64 in September 13, 2008 beats a recent record of 6.49
in August 13, 1987. Serious urban flooding in Addison, Elk Grove Village, Des Plaines, Medinah, and Stone Park. A drowning in a reservoir in Arlington Heights. Snowfall
(in inches)
Seasonal
Greatest 89.7
in 1978-79 Seasonal
Least 9.8
in 1920-21 Greatest
Total: Month 42.5
in January 1918 Storm 23.0
in January 26-27 1967 'Big
Snow' 24
hours 19.8
in January 26-27 1967 Greatest
in Calendar Day 18.6
in January 2, 1999
Earliest Snowfall Trace
snowfall has been reported on September
25, 1928 and September 25, 1942. Earliest
measurable snowfall is 0.3 inches officially measured at O'Hare on October 12, 2006. The previous record was 0.2 inches
October 18, 1972. Another 0.6
inches of snow fell on October 19, 1972.
First snowfall greater than one inch in
one day was 3.8 inches on October
19, 1989. A three-day total including and
following this date totalled 6.3
inches.
Latest Snowfall in Spring Latest
snowfall (.2 inch) has been reported on May 11th, 1966. Some areas of
the Chicago metro area reported 2
inches of snow from strong easterly winds.
The latest official snowfall greater than
one inch occurred May 1 and May 2, 1940
when 2.2 inches of total snowfall
occurred.
Earliest Tornado Reported Funnel
clouds were reported in southwest Chicago
where a building under construction
collapsed, killing one man and injuring
four others on January 24th, 1967. The
"Big Snow of 1967" began days later on
January 26, 1967.
Latest Tornado Reported A
tornado touched down southeast of Spring
Valley, IL on December 6th, 1951 where six
homes lost roofs or were severely damaged
as the tornado headed northeast toward
Mendota, IL, where it dissipated. Spring
Valley, IL is about 100 miles southwest of
Chicago's O'Hare International Airport.
Mendota, IL is about 75 miles southwest of
Chicago's O'Hare International
Airport. Pressure
(in inches of
Mercury)
Highest 30.98
on February 16, 1989 Lowest 28.70
on March 12, 1923 Wind
(in mph)
Highest
gust 87
on February 12, 1894 |
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