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 1968

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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 1968
1-Month
2.07"
(52.58mm)
2.16"
(54.86mm)
-0.09"
(-2.28mm)
50th Driest
Driest since:
1952
79th Wettest
Wettest since:
2009
Sep–Oct 1968
2-Month
4.38"
(111.25mm)
4.65"
(118.11mm)
-0.27"
(-6.86mm)
40th Driest
Driest since:
1952
89th Wettest
Wettest since:
2018
Aug–Oct 1968
3-Month
7.26"
(184.40mm)
7.27"
(184.66mm)
-0.01"
(-0.26mm)
59th Driest
Driest since:
1952
70th Wettest
Wettest since:
2018
Ties: 2010
Jul–Oct 1968
4-Month
10.03"
(254.76mm)
10.05"
(255.27mm)
-0.02"
(-0.51mm)
54th Driest
Driest since:
1952
75th Wettest
Wettest since:
1941
Jun–Oct 1968
5-Month
13.15"
(334.01mm)
12.97"
(329.44mm)
0.18"
(4.57mm)
60th Driest
Driest since:
1952
69th Wettest
Wettest since:
1941
Ties: 1932
May–Oct 1968
6-Month
16.48"
(418.59mm)
15.88"
(403.35mm)
0.60"
(15.24mm)
75th Driest
Driest since:
1952
54th Wettest
Wettest since:
1941
Apr–Oct 1968
7-Month
18.94"
(481.08mm)
18.40"
(467.36mm)
0.54"
(13.72mm)
75th Driest
Driest since:
1952
54th Wettest
Wettest since:
1941
Ties: 1983
Mar–Oct 1968
8-Month
21.10"
(535.94mm)
20.91"
(531.11mm)
0.19"
(4.83mm)
61st Driest
Driest since:
1956
68th Wettest
Wettest since:
2019
Feb–Oct 1968
9-Month
22.58"
(573.53mm)
23.04"
(585.22mm)
-0.46"
(-11.69mm)
46th Driest
Driest since:
1934
83rd Wettest
Wettest since:
2019
Jan–Oct 1968
10-Month
24.75"
(628.65mm)
25.36"
(644.14mm)
-0.61"
(-15.49mm)
38th Driest
Driest since:
1934
91st Wettest
Wettest since:
2019
Dec 1967–Oct 1968
11-Month
27.81"
(706.37mm)
27.70"
(703.58mm)
0.11"
(2.79mm)
64th Driest
Driest since:
1931
64th Wettest
Wettest since:
2019
Nov 1967–Oct 1968
12-Month
29.42"
(747.27mm)
29.93"
(760.22mm)
-0.51"
(-12.95mm)
45th Driest
Driest since:
1934
83rd Wettest
Wettest since:
2019
Ties: 1897, 1914
May 1967–Oct 1968
18-Month
46.19"
(1,173.23mm)
45.83"
(1,164.08mm)
0.36"
(9.15mm)
64th Driest
Driest since:
1931
64th Wettest
Wettest since:
2019
Nov 1966–Oct 1968
24-Month
58.90"
(1,496.06mm)
59.90"
(1,521.46mm)
-1.00"
(-25.40mm)
43rd Driest
Driest since:
1931
84th Wettest
Wettest since:
2019
Nov 1965–Oct 1968
36-Month
85.97"
(2,183.64mm)
89.86"
(2,282.44mm)
-3.89"
(-98.80mm)
23rd Driest
Driest since:
1956
103rd Wettest
Wettest since:
2019
Nov 1964–Oct 1968
48-Month
117.32"
(2,979.93mm)
119.78"
(3,042.41mm)
-2.46"
(-62.48mm)
37th Driest
Driest since:
1956
88th Wettest
Wettest since:
2019
Nov 1963–Oct 1968
60-Month
146.01"
(3,708.65mm)
149.66"
(3,801.36mm)
-3.65"
(-92.71mm)
28th Driest
Driest since:
1934
96th Wettest
Wettest since:
2019

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