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 2004

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 2004
1-Month
3.04"
(77.22mm)
2.16"
(54.86mm)
0.88"
(22.36mm)
118th Driest
Driest since:
1952
11th Wettest
Wettest since:
2009
Sep–Oct 2004
2-Month
6.02"
(152.91mm)
4.65"
(118.11mm)
1.37"
(34.80mm)
122nd Driest
Driest since:
1952
7th Wettest
Wettest since:
2018
Aug–Oct 2004
3-Month
9.06"
(230.12mm)
7.27"
(184.66mm)
1.79"
(45.46mm)
122nd Driest
Driest since:
1952
7th Wettest
Wettest since:
2018
Jul–Oct 2004
4-Month
12.11"
(307.59mm)
10.05"
(255.27mm)
2.06"
(52.32mm)
125th Driest
Driest since:
1952
4th Wettest
Wettest since:
1941
Jun–Oct 2004
5-Month
15.62"
(396.75mm)
12.97"
(329.44mm)
2.65"
(67.31mm)
126th Driest
Driest since:
1952
3rd Wettest
Wettest since:
1941
May–Oct 2004
6-Month
18.96"
(481.58mm)
15.88"
(403.35mm)
3.08"
(78.23mm)
125th Driest
Driest since:
1952
4th Wettest
Wettest since:
1941
Apr–Oct 2004
7-Month
21.46"
(545.08mm)
18.40"
(467.36mm)
3.06"
(77.72mm)
122nd Driest
Driest since:
1952
7th Wettest
Wettest since:
1941
Mar–Oct 2004
8-Month
23.47"
(596.14mm)
20.91"
(531.11mm)
2.56"
(65.03mm)
118th Driest
Driest since:
1956
11th Wettest
Wettest since:
2019
Feb–Oct 2004
9-Month
25.92"
(658.37mm)
23.04"
(585.22mm)
2.88"
(73.15mm)
119th Driest
Driest since:
1934
10th Wettest
Wettest since:
2019
Jan–Oct 2004
10-Month
27.89"
(708.41mm)
25.36"
(644.14mm)
2.53"
(64.27mm)
114th Driest
Driest since:
1934
15th Wettest
Wettest since:
2019
Dec 2003–Oct 2004
11-Month
30.27"
(768.86mm)
27.70"
(703.58mm)
2.57"
(65.28mm)
112th Driest
Driest since:
1931
16th Wettest
Wettest since:
2019
Ties: 1905
Nov 2003–Oct 2004
12-Month
32.82"
(833.63mm)
29.93"
(760.22mm)
2.89"
(73.41mm)
112th Driest
Driest since:
1934
16th Wettest
Wettest since:
2019
May 2003–Oct 2004
18-Month
49.39"
(1,254.51mm)
45.83"
(1,164.08mm)
3.56"
(90.43mm)
110th Driest
Driest since:
1931
18th Wettest
Wettest since:
2019
Nov 2002–Oct 2004
24-Month
63.34"
(1,608.84mm)
59.90"
(1,521.46mm)
3.44"
(87.38mm)
103rd Driest
Driest since:
1931
24th Wettest
Wettest since:
2019
Nov 2001–Oct 2004
36-Month
92.20"
(2,341.88mm)
89.86"
(2,282.44mm)
2.34"
(59.44mm)
85th Driest
Driest since:
1956
41st Wettest
Wettest since:
2019
Nov 2000–Oct 2004
48-Month
120.91"
(3,071.11mm)
119.78"
(3,042.41mm)
1.13"
(28.70mm)
68th Driest
Driest since:
1956
57th Wettest
Wettest since:
2019
Nov 1999–Oct 2004
60-Month
147.86"
(3,755.64mm)
149.66"
(3,801.36mm)
-1.80"
(-45.72mm)
45th Driest
Driest since:
1934
79th Wettest
Wettest since:
2019

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