Climate at a Glance

Statewide Rankings

Look up monthly rankings for 1-12, 18, 24, 36, 48, and 60-month time periods using the options below. Data and statistics are as of January 2020. For more information, please see Climatological Rankings.


Illinois

Precipitation Rankings, December 1999

View Period (Months):All1234567891011121824364860
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2019)
Wettest/Driest
Since
Record
December 1999
1-Month
2.75"
(69.85mm)
2.33"
(59.18mm)
0.42"
(10.67mm)
88th Driest Driest since: 1998 1976
38th Wettest Wettest since: 1990 1982
Ties: 1915
Nov–Dec 1999
2-Month
3.28"
(83.31mm)
5.09"
(129.29mm)
-1.81"
(-45.98mm)
22nd Driest Driest since: 1989 1976
104th Wettest Wettest since: 1998 2015
Oct–Dec 1999
3-Month
4.97"
(126.24mm)
7.88"
(200.15mm)
-2.91"
(-73.91mm)
13th Driest Driest since: 1989 1904
113th Wettest Wettest since: 1998 1985
Sep–Dec 1999
4-Month
7.15"
(181.61mm)
11.37"
(288.80mm)
-4.22"
(-107.19mm)
8th Driest Driest since: 1976 1939
118th Wettest Wettest since: 1998 1926
Aug–Dec 1999
5-Month
9.94"
(252.48mm)
14.87"
(377.70mm)
-4.93"
(-125.22mm)
8th Driest Driest since: 1976 1953
118th Wettest Wettest since: 1998 1926
Jul–Dec 1999
6-Month
12.87"
(326.90mm)
18.51"
(470.15mm)
-5.64"
(-143.25mm)
8th Driest Driest since: 1976 1953
118th Wettest Wettest since: 1998 1993
Jun–Dec 1999
7-Month
18.15"
(461.01mm)
22.59"
(573.79mm)
-4.44"
(-112.78mm)
19th Driest Driest since: 1976 1953
107th Wettest Wettest since: 1998 2015
May–Dec 1999
8-Month
21.83"
(554.48mm)
26.68"
(677.67mm)
-4.85"
(-123.19mm)
18th Driest Driest since: 1988 1953
108th Wettest Wettest since: 1998 2015
Apr–Dec 1999
9-Month
27.36"
(694.94mm)
30.39"
(771.91mm)
-3.03"
(-76.97mm)
31st Driest Driest since: 1997 1901
95th Wettest Wettest since: 1998 2015
Mar–Dec 1999
10-Month
29.08"
(738.63mm)
33.48"
(850.39mm)
-4.40"
(-111.76mm)
20th Driest Driest since: 1997 1930
106th Wettest Wettest since: 1998 2009
Feb–Dec 1999
11-Month
31.50"
(800.10mm)
35.34"
(897.64mm)
-3.84"
(-97.54mm)
27th Driest Driest since: 1989 1930
99th Wettest Wettest since: 1998 2009
Jan–Dec 1999
12-Month
35.71"
(907.03mm)
37.47"
(951.74mm)
-1.76"
(-44.71mm)
44th Driest Driest since: 1997 1901
82nd Wettest Wettest since: 1998 1993
Ties: 1897
Jul 1998–Dec 1999
18-Month
53.00"
(1,346.20mm)
55.97"
(1,421.64mm)
-2.97"
(-75.44mm)
35th Driest Driest since: 1997 1953
90th Wettest Wettest since: 1998 1927
Jan 1998–Dec 1999
24-Month
80.20"
(2,037.08mm)
74.89"
(1,902.21mm)
5.31"
(134.87mm)
94th Driest Driest since: 1998 1964
31st Wettest Wettest since: 1994 2009
Jan 1997–Dec 1999
36-Month
115.30"
(2,928.62mm)
112.28"
(2,851.91mm)
3.02"
(76.71mm)
75th Driest Driest since: 1997 1964
49th Wettest Wettest since: 1998 2010
Jan 1996–Dec 1999
48-Month
154.12"
(3,914.65mm)
149.70"
(3,802.38mm)
4.42"
(112.27mm)
75th Driest Driest since: 1997 1956
48th Wettest Wettest since: 1998 2011
Jan 1995–Dec 1999
60-Month
193.03"
(4,902.96mm)
187.12"
(4,752.85mm)
5.91"
(150.11mm)
75th Driest Driest since: 1998 1956
47th Wettest Wettest since: 1997 2011

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published February 2020, retrieved on February 23, 2020 from https://www.ncdc.noaa.gov/cag/