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 1986

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 1986
1-Month
2.81"
(71.37mm)
2.16"
(54.86mm)
0.65"
(16.51mm)
109th Driest
Driest since:
1952
20th Wettest
Wettest since:
2009
Sep–Oct 1986
2-Month
6.40"
(162.56mm)
4.65"
(118.11mm)
1.75"
(44.45mm)
125th Driest
Driest since:
1952
4th Wettest
Wettest since:
2018
Aug–Oct 1986
3-Month
9.22"
(234.19mm)
7.27"
(184.66mm)
1.95"
(49.53mm)
125th Driest
Driest since:
1952
4th Wettest
Wettest since:
2018
Jul–Oct 1986
4-Month
11.97"
(304.04mm)
10.05"
(255.27mm)
1.92"
(48.77mm)
122nd Driest
Driest since:
1952
7th Wettest
Wettest since:
1941
Jun–Oct 1986
5-Month
15.00"
(381.00mm)
12.97"
(329.44mm)
2.03"
(51.56mm)
123rd Driest
Driest since:
1952
6th Wettest
Wettest since:
1941
May–Oct 1986
6-Month
17.95"
(455.93mm)
15.88"
(403.35mm)
2.07"
(52.58mm)
118th Driest
Driest since:
1952
11th Wettest
Wettest since:
1941
Apr–Oct 1986
7-Month
20.19"
(512.83mm)
18.40"
(467.36mm)
1.79"
(45.47mm)
111th Driest
Driest since:
1952
18th Wettest
Wettest since:
1941
Mar–Oct 1986
8-Month
22.17"
(563.12mm)
20.91"
(531.11mm)
1.26"
(32.01mm)
94th Driest
Driest since:
1956
35th Wettest
Wettest since:
2019
Feb–Oct 1986
9-Month
24.99"
(634.75mm)
23.04"
(585.22mm)
1.95"
(49.53mm)
110th Driest
Driest since:
1934
19th Wettest
Wettest since:
2019
Jan–Oct 1986
10-Month
26.44"
(671.58mm)
25.36"
(644.14mm)
1.08"
(27.44mm)
90th Driest
Driest since:
1934
39th Wettest
Wettest since:
2019
Dec 1985–Oct 1986
11-Month
27.90"
(708.66mm)
27.70"
(703.58mm)
0.20"
(5.08mm)
67th Driest
Driest since:
1931
61st Wettest
Wettest since:
2019
Nov 1985–Oct 1986
12-Month
31.44"
(798.58mm)
29.93"
(760.22mm)
1.51"
(38.36mm)
94th Driest
Driest since:
1934
34th Wettest
Wettest since:
2019
May 1985–Oct 1986
18-Month
48.44"
(1,230.38mm)
45.83"
(1,164.08mm)
2.61"
(66.30mm)
97th Driest
Driest since:
1931
31st Wettest
Wettest since:
2019
Nov 1984–Oct 1986
24-Month
61.75"
(1,568.45mm)
59.90"
(1,521.46mm)
1.85"
(46.99mm)
86th Driest
Driest since:
1931
41st Wettest
Wettest since:
2019
Nov 1983–Oct 1986
36-Month
95.17"
(2,417.32mm)
89.86"
(2,282.44mm)
5.31"
(134.88mm)
110th Driest
Driest since:
1956
16th Wettest
Wettest since:
2019
Nov 1982–Oct 1986
48-Month
129.32"
(3,284.73mm)
119.78"
(3,042.41mm)
9.54"
(242.32mm)
114th Driest
Driest since:
1956
11th Wettest
Wettest since:
2019
Nov 1981–Oct 1986
60-Month
160.85"
(4,085.59mm)
149.66"
(3,801.36mm)
11.19"
(284.23mm)
115th Driest
Driest since:
1934
9th Wettest
Wettest to Date
2019

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