Statewide Rankings

Statewide Data Info
Please note, Degree Days and Palmer Indices are not available for Alaska. Palmer Drought Severity Index (PDSI), Palmer Hydrological Drought Index (PHDI), and Palmer Modified Drought Index (PMDI) are not offered for multiple-month time scales.

Iowa

Precipitation Rankings, December 1909

View Period (Months):
Download: csv json xml
  • Record Driest
  • Bottom 1/10
  • Bottom 1/3
  • Normal
  • Top 1/3
  • Top 1/10
  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2021)
Wettest/Driest
Since
Record
December 1909
1-Month
2.17"
(55.12mm)
1.11"
(28.19mm)
1.06"
(26.93mm)
121st Driest
Driest since:
2002
7th Wettest
Wettest to Date
2015
Nov–Dec 1909
2-Month
7.52"
(191.01mm)
2.87"
(72.90mm)
4.65"
(118.11mm)
125th Driest
Driest since:
1976
3rd Wettest
Wettest to Date
2015
Oct–Dec 1909
3-Month
9.57"
(243.08mm)
5.16"
(131.06mm)
4.41"
(112.02mm)
123rd Driest
Driest since:
1910
5th Wettest
Wettest to Date
1931
Sep–Dec 1909
4-Month
13.21"
(335.53mm)
8.83"
(224.28mm)
4.38"
(111.25mm)
116th Driest
Driest since:
1939, 1976
12th Wettest
Wettest to Date
1931
Aug–Dec 1909
5-Month
15.09"
(383.29mm)
12.67"
(321.82mm)
2.42"
(61.47mm)
97th Driest
Driest since:
1976
31st Wettest
Wettest since:
2018
Jul–Dec 1909
6-Month
19.78"
(502.41mm)
16.52"
(419.61mm)
3.26"
(82.80mm)
101st Driest
Driest since:
1976
27th Wettest
Wettest since:
2018
Jun–Dec 1909
7-Month
26.07"
(662.18mm)
21.15"
(537.21mm)
4.92"
(124.97mm)
108th Driest
Driest since:
1976
20th Wettest
Wettest since:
2018
May–Dec 1909
8-Month
30.44"
(773.18mm)
25.20"
(640.08mm)
5.24"
(133.10mm)
110th Driest
Driest since:
1976
18th Wettest
Wettest since:
1993
Apr–Dec 1909
9-Month
34.93"
(887.22mm)
28.15"
(715.01mm)
6.78"
(172.21mm)
115th Driest
Driest since:
1910
13th Wettest
Wettest since:
1993
Mar–Dec 1909
10-Month
36.44"
(925.58mm)
30.10"
(764.54mm)
6.34"
(161.04mm)
108th Driest
Driest since:
1910
20th Wettest
Wettest since:
1993
Feb–Dec 1909
11-Month
38.00"
(965.20mm)
31.12"
(790.45mm)
6.88"
(174.75mm)
110th Driest
Driest since:
1910
18th Wettest
Wettest since:
1993
Jan–Dec 1909
12-Month
39.67"
(1,007.62mm)
32.09"
(815.09mm)
7.58"
(192.53mm)
114th Driest
Driest since:
1910
14th Wettest
Wettest since:
1993
Jul 1908–Dec 1909
18-Month
54.79"
(1,391.67mm)
48.69"
(1,236.73mm)
6.10"
(154.94mm)
103rd Driest
Driest since:
1956
24th Wettest
Wettest since:
1993
Jan 1908–Dec 1909
24-Month
74.41"
(1,890.01mm)
64.24"
(1,631.70mm)
10.17"
(258.31mm)
110th Driest
Driest since:
1989
17th Wettest
Wettest since:
2019
Jan 1907–Dec 1909
36-Month
106.01"
(2,692.65mm)
96.36"
(2,447.54mm)
9.65"
(245.11mm)
104th Driest
Driest since:
1957
22nd Wettest
Wettest since:
2010
Jan 1906–Dec 1909
48-Month
137.51"
(3,492.75mm)
128.37"
(3,260.60mm)
9.14"
(232.15mm)
94th Driest
Driest since:
1958
31st Wettest
Wettest since:
2010
Jan 1905–Dec 1909
60-Month
173.63"
(4,410.20mm)
160.36"
(4,073.14mm)
13.27"
(337.06mm)
99th Driest
Driest since:
1956
25th Wettest
Wettest since:
2010

Citing This Page