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 1895

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Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Wettest/Driest
Since
Record
October 1895
1-Month
1.08"
(27.43mm)
2.16"
(54.86mm)
-1.08"
(-27.43mm)
3rd Driest
Driest since:
1952
126th Wettest
Wettest to Date
2009
Sep–Oct 1895
2-Month
2.66"
(67.56mm)
4.65"
(118.11mm)
-1.99"
(-50.55mm)
2nd Driest
Driest since:
1952
127th Wettest
Wettest to Date
2018
Aug–Oct 1895
3-Month
5.19"
(131.83mm)
7.27"
(184.66mm)
-2.08"
(-52.83mm)
2nd Driest
Driest since:
1952
127th Wettest
Wettest to Date
2018
Jul–Oct 1895
4-Month
8.19"
(208.03mm)
10.05"
(255.27mm)
-1.86"
(-47.24mm)
3rd Driest
Driest since:
1952
126th Wettest
Wettest to Date
1941
Ties: 1963
Jun–Oct 1895
5-Month
11.14"
(282.96mm)
12.97"
(329.44mm)
-1.83"
(-46.48mm)
9th Driest
Driest since:
1952
120th Wettest
Wettest to Date
1941
May–Oct 1895
6-Month
14.02"
(356.11mm)
15.88"
(403.35mm)
-1.86"
(-47.24mm)
13th Driest
Driest since:
1952
116th Wettest
Wettest to Date
1941
Ties: 1954
Apr–Oct 1895
7-Month
16.01"
(406.65mm)
18.40"
(467.36mm)
-2.39"
(-60.71mm)
10th Driest
Driest since:
1952
119th Wettest
Wettest to Date
1941
Mar–Oct 1895
8-Month
18.00"
(457.20mm)
20.91"
(531.11mm)
-2.91"
(-73.91mm)
8th Driest
Driest since:
1956
121st Wettest
Wettest to Date
2019
Feb–Oct 1895
9-Month
19.41"
(493.01mm)
23.04"
(585.22mm)
-3.63"
(-92.21mm)
5th Driest
Driest since:
1934
124th Wettest
Wettest to Date
2019
Jan–Oct 1895
10-Month
22.73"
(577.34mm)
25.36"
(644.14mm)
-2.63"
(-66.80mm)
11th Driest
Driest since:
1934
118th Wettest
Wettest to Date
2019

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