National Rankings

National Data Info
Palmer Drought Severity Index (PDSI), Palmer Hydrological Drought Index (PHDI), and Palmer Modified Drought Index (PMDI) are not offered for multiple-month time scales.

Contiguous U.S.

Precipitation Rankings, October 1949

View Period (Months):
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  • Record Driest
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Wettest/Driest
Since
Record
October 1949
1-Month
2.80"
(71.12mm)
2.16"
(54.86mm)
0.64"
(16.26mm)
108th Driest
Driest since:
1952
21st Wettest
Wettest since:
2009
Sep–Oct 1949
2-Month
5.02"
(127.51mm)
4.65"
(118.11mm)
0.37"
(9.40mm)
90th Driest
Driest since:
1952
39th Wettest
Wettest since:
2018
Ties: 2015
Aug–Oct 1949
3-Month
7.51"
(190.75mm)
7.27"
(184.66mm)
0.24"
(6.09mm)
77th Driest
Driest since:
1952
52nd Wettest
Wettest since:
2018
Jul–Oct 1949
4-Month
10.59"
(268.99mm)
10.05"
(255.27mm)
0.54"
(13.72mm)
84th Driest
Driest since:
1952
45th Wettest
Wettest since:
1941
Jun–Oct 1949
5-Month
13.79"
(350.27mm)
12.97"
(329.44mm)
0.82"
(20.83mm)
87th Driest
Driest since:
1952
42nd Wettest
Wettest since:
1941
May–Oct 1949
6-Month
16.77"
(425.96mm)
15.88"
(403.35mm)
0.89"
(22.61mm)
91st Driest
Driest since:
1952
38th Wettest
Wettest since:
1941
Ties: 1967, 1979
Apr–Oct 1949
7-Month
18.86"
(479.04mm)
18.40"
(467.36mm)
0.46"
(11.68mm)
72nd Driest
Driest since:
1952
57th Wettest
Wettest since:
1941
Mar–Oct 1949
8-Month
21.33"
(541.78mm)
20.91"
(531.11mm)
0.42"
(10.67mm)
68th Driest
Driest since:
1956
61st Wettest
Wettest since:
2019
Feb–Oct 1949
9-Month
23.73"
(602.74mm)
23.04"
(585.22mm)
0.69"
(17.52mm)
78th Driest
Driest since:
1934
51st Wettest
Wettest since:
2019
Jan–Oct 1949
10-Month
26.89"
(683.01mm)
25.36"
(644.14mm)
1.53"
(38.87mm)
101st Driest
Driest since:
1934
28th Wettest
Wettest since:
2019
Dec 1948–Oct 1949
11-Month
29.48"
(748.79mm)
27.70"
(703.58mm)
1.78"
(45.21mm)
97th Driest
Driest since:
1931
31st Wettest
Wettest since:
2019
Nov 1948–Oct 1949
12-Month
32.87"
(834.90mm)
29.93"
(760.22mm)
2.94"
(74.68mm)
114th Driest
Driest since:
1934
14th Wettest
Wettest since:
2019
May 1948–Oct 1949
18-Month
47.52"
(1,207.01mm)
45.83"
(1,164.08mm)
1.69"
(42.93mm)
85th Driest
Driest since:
1931
43rd Wettest
Wettest since:
2019
Nov 1947–Oct 1949
24-Month
62.35"
(1,583.69mm)
59.90"
(1,521.46mm)
2.45"
(62.23mm)
89th Driest
Driest since:
1931
38th Wettest
Wettest since:
2019
Nov 1946–Oct 1949
36-Month
91.95"
(2,335.53mm)
89.86"
(2,282.44mm)
2.09"
(53.09mm)
82nd Driest
Driest since:
1956
44th Wettest
Wettest since:
2019
Nov 1945–Oct 1949
48-Month
122.96"
(3,123.18mm)
119.78"
(3,042.41mm)
3.18"
(80.77mm)
91st Driest
Driest since:
1956
34th Wettest
Wettest since:
2019
Nov 1944–Oct 1949
60-Month
155.79"
(3,957.07mm)
149.66"
(3,801.36mm)
6.13"
(155.71mm)
99th Driest
Driest since:
1934
25th Wettest
Wettest to Date
2019

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