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 1929

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 1929
1-Month
2.60"
(66.04mm)
2.16"
(54.86mm)
0.44"
(11.18mm)
96th Driest
Driest since:
1952
33rd Wettest
Wettest since:
2009
Ties: 2017
Sep–Oct 1929
2-Month
5.35"
(135.89mm)
4.65"
(118.11mm)
0.70"
(17.78mm)
99th Driest
Driest since:
1952
30th Wettest
Wettest since:
2018
Aug–Oct 1929
3-Month
7.15"
(181.61mm)
7.27"
(184.66mm)
-0.12"
(-3.05mm)
51st Driest
Driest since:
1952
78th Wettest
Wettest since:
2018
Ties: 1962
Jul–Oct 1929
4-Month
9.72"
(246.89mm)
10.05"
(255.27mm)
-0.33"
(-8.38mm)
43rd Driest
Driest since:
1952
86th Wettest
Wettest since:
1941
Jun–Oct 1929
5-Month
12.35"
(313.69mm)
12.97"
(329.44mm)
-0.62"
(-15.75mm)
38th Driest
Driest since:
1952
91st Wettest
Wettest since:
1941
May–Oct 1929
6-Month
15.86"
(402.84mm)
15.88"
(403.35mm)
-0.02"
(-0.51mm)
56th Driest
Driest since:
1952
73rd Wettest
Wettest since:
1941
Apr–Oct 1929
7-Month
18.79"
(477.27mm)
18.40"
(467.36mm)
0.39"
(9.91mm)
67th Driest
Driest since:
1952
62nd Wettest
Wettest since:
1941
Mar–Oct 1929
8-Month
21.60"
(548.64mm)
20.91"
(531.11mm)
0.69"
(17.53mm)
79th Driest
Driest since:
1956
50th Wettest
Wettest since:
2019
Feb–Oct 1929
9-Month
23.62"
(599.95mm)
23.04"
(585.22mm)
0.58"
(14.73mm)
75th Driest
Driest since:
1934
54th Wettest
Wettest since:
2019
Jan–Oct 1929
10-Month
25.98"
(659.89mm)
25.36"
(644.14mm)
0.62"
(15.75mm)
78th Driest
Driest since:
1934
51st Wettest
Wettest since:
2019
Ties: 1942, 1989
Dec 1928–Oct 1929
11-Month
27.72"
(704.09mm)
27.70"
(703.58mm)
0.02"
(0.51mm)
60th Driest
Driest since:
1931
68th Wettest
Wettest since:
2019
Nov 1928–Oct 1929
12-Month
29.87"
(758.70mm)
29.93"
(760.22mm)
-0.06"
(-1.52mm)
58th Driest
Driest since:
1934
70th Wettest
Wettest since:
2019
May 1928–Oct 1929
18-Month
47.05"
(1,195.07mm)
45.83"
(1,164.08mm)
1.22"
(30.99mm)
79th Driest
Driest since:
1931
49th Wettest
Wettest since:
2019
Nov 1927–Oct 1929
24-Month
60.91"
(1,547.11mm)
59.90"
(1,521.46mm)
1.01"
(25.65mm)
74th Driest
Driest since:
1931
53rd Wettest
Wettest since:
2019
Nov 1926–Oct 1929
36-Month
93.08"
(2,364.23mm)
89.86"
(2,282.44mm)
3.22"
(81.79mm)
93rd Driest
Driest since:
1956
33rd Wettest
Wettest since:
2019
Nov 1925–Oct 1929
48-Month
122.30"
(3,106.42mm)
119.78"
(3,042.41mm)
2.52"
(64.01mm)
82nd Driest
Driest since:
1956
43rd Wettest
Wettest since:
2019
Nov 1924–Oct 1929
60-Month
149.43"
(3,795.52mm)
149.66"
(3,801.36mm)
-0.23"
(-5.84mm)
58th Driest
Driest since:
1934
66th Wettest
Wettest since:
2019

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