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 October 2021. For more information, please see Climatological Rankings.


Iowa

Precipitation Rankings, December 1999

View Period (Months):All1234567891011121824364860
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2020)
Wettest/Driest
Since
Record
December 1999
1-Month
0.71"
(18.03mm)
1.11"
(28.19mm)
-0.40"
(-10.16mm)
34th Driest Driest since: 1998 2002
93rd Wettest Wettest since: 1997 2015
Ties: 1912
Nov–Dec 1999
2-Month
1.73"
(43.94mm)
2.87"
(72.90mm)
-1.14"
(-28.96mm)
28th Driest Driest since: 1989 1976
99th Wettest Wettest since: 1998 2015
Ties: 1969
Oct–Dec 1999
3-Month
2.50"
(63.50mm)
5.16"
(131.06mm)
-2.66"
(-67.56mm)
6th Driest Driest since: 1976 1910
121st Wettest Wettest since: 1998 1931
Sep–Dec 1999
4-Month
4.34"
(110.24mm)
8.83"
(224.28mm)
-4.49"
(-114.04mm)
4th Driest Driest since: 1976 1939, 1976
123rd Wettest Wettest since: 1998 1931
Aug–Dec 1999
5-Month
7.45"
(189.23mm)
12.67"
(321.82mm)
-5.22"
(-132.59mm)
8th Driest Driest since: 1976 1976
119th Wettest Wettest since: 1998 2018
Jul–Dec 1999
6-Month
12.66"
(321.56mm)
16.52"
(419.61mm)
-3.86"
(-98.05mm)
19th Driest Driest since: 1976 1976
108th Wettest Wettest since: 1998 2018
Jun–Dec 1999
7-Month
17.95"
(455.93mm)
21.15"
(537.21mm)
-3.20"
(-81.28mm)
28th Driest Driest since: 1995 1976
99th Wettest Wettest since: 1998 2018
May–Dec 1999
8-Month
22.84"
(580.14mm)
25.20"
(640.08mm)
-2.36"
(-59.94mm)
36th Driest Driest since: 1997 1976
91st Wettest Wettest since: 1998 1993
Apr–Dec 1999
9-Month
29.10"
(739.14mm)
28.15"
(715.01mm)
0.95"
(24.13mm)
72nd Driest Driest since: 1997 1910
55th Wettest Wettest since: 1998 1993
Ties: 1987
Mar–Dec 1999
10-Month
30.08"
(764.03mm)
30.10"
(764.54mm)
-0.02"
(-0.51mm)
60th Driest Driest since: 1997 1910
67th Wettest Wettest since: 1998 1993
Feb–Dec 1999
11-Month
30.99"
(787.15mm)
31.12"
(790.45mm)
-0.13"
(-3.30mm)
64th Driest Driest since: 1997 1910
63rd Wettest Wettest since: 1998 1993
Jan–Dec 1999
12-Month
32.28"
(819.91mm)
32.09"
(815.09mm)
0.19"
(4.82mm)
66th Driest Driest since: 1997 1910
61st Wettest Wettest since: 1998 1993
Jul 1998–Dec 1999
18-Month
49.37"
(1,254.00mm)
48.69"
(1,236.73mm)
0.68"
(17.27mm)
70th Driest Driest since: 1997 1956
56th Wettest Wettest since: 1998 1993
Jan 1998–Dec 1999
24-Month
71.85"
(1,824.99mm)
64.24"
(1,631.70mm)
7.61"
(193.29mm)
103rd Driest Driest since: 1998 1989
23rd Wettest Wettest since: 1994 2019
Jan 1997–Dec 1999
36-Month
101.06"
(2,566.92mm)
96.36"
(2,447.54mm)
4.70"
(119.38mm)
85th Driest Driest since: 1997 1957
40th Wettest Wettest since: 1998 2010
Jan 1996–Dec 1999
48-Month
134.72"
(3,421.89mm)
128.37"
(3,260.60mm)
6.35"
(161.29mm)
87th Driest Driest since: 1998 1958
37th Wettest Wettest since: 1996 2010
Jan 1995–Dec 1999
60-Month
166.98"
(4,241.29mm)
160.36"
(4,073.14mm)
6.62"
(168.15mm)
82nd Driest Driest since: 1998 1956
41st Wettest Wettest since: 1997 2010

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published November 2021, retrieved on December 5, 2021 from https://www.ncdc.noaa.gov/cag/