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 1984

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 1984
1-Month
3.65"
(92.71mm)
2.16"
(54.86mm)
1.49"
(37.85mm)
126th Driest
Driest since:
1952
3rd Wettest
Wettest since:
2009
Sep–Oct 1984
2-Month
5.56"
(141.22mm)
4.65"
(118.11mm)
0.91"
(23.11mm)
109th Driest
Driest since:
1952
20th Wettest
Wettest since:
2018
Ties: 1971
Aug–Oct 1984
3-Month
7.99"
(202.95mm)
7.27"
(184.66mm)
0.72"
(18.29mm)
99th Driest
Driest since:
1952
30th Wettest
Wettest since:
2018
Jul–Oct 1984
4-Month
10.82"
(274.83mm)
10.05"
(255.27mm)
0.77"
(19.56mm)
98th Driest
Driest since:
1952
31st Wettest
Wettest since:
1941
Jun–Oct 1984
5-Month
13.75"
(349.25mm)
12.97"
(329.44mm)
0.78"
(19.81mm)
85th Driest
Driest since:
1952
44th Wettest
Wettest since:
1941
Ties: 1965
May–Oct 1984
6-Month
16.90"
(429.26mm)
15.88"
(403.35mm)
1.02"
(25.91mm)
93rd Driest
Driest since:
1952
36th Wettest
Wettest since:
1941
Ties: 1908
Apr–Oct 1984
7-Month
19.85"
(504.19mm)
18.40"
(467.36mm)
1.45"
(36.83mm)
99th Driest
Driest since:
1952
30th Wettest
Wettest since:
1941
Mar–Oct 1984
8-Month
22.60"
(574.04mm)
20.91"
(531.11mm)
1.69"
(42.93mm)
106th Driest
Driest since:
1956
23rd Wettest
Wettest since:
2019
Ties: 1919, 2021
Feb–Oct 1984
9-Month
24.71"
(627.63mm)
23.04"
(585.22mm)
1.67"
(42.41mm)
101st Driest
Driest since:
1934
28th Wettest
Wettest since:
2019
Jan–Oct 1984
10-Month
26.06"
(661.92mm)
25.36"
(644.14mm)
0.70"
(17.78mm)
82nd Driest
Driest since:
1934
47th Wettest
Wettest since:
2019
Dec 1983–Oct 1984
11-Month
29.50"
(749.30mm)
27.70"
(703.58mm)
1.80"
(45.72mm)
98th Driest
Driest since:
1931
30th Wettest
Wettest since:
2019
Nov 1983–Oct 1984
12-Month
33.42"
(848.87mm)
29.93"
(760.22mm)
3.49"
(88.65mm)
117th Driest
Driest since:
1934
11th Wettest
Wettest since:
2019
May 1983–Oct 1984
18-Month
49.16"
(1,248.66mm)
45.83"
(1,164.08mm)
3.33"
(84.58mm)
106th Driest
Driest since:
1931
22nd Wettest
Wettest since:
2019
Ties: 2015
Nov 1982–Oct 1984
24-Month
67.57"
(1,716.28mm)
59.90"
(1,521.46mm)
7.67"
(194.82mm)
124th Driest
Driest since:
1931
3rd Wettest
Wettest to Date
2019
Nov 1981–Oct 1984
36-Month
99.10"
(2,517.14mm)
89.86"
(2,282.44mm)
9.24"
(234.70mm)
120th Driest
Driest since:
1956
6th Wettest
Wettest since:
2019
Nov 1980–Oct 1984
48-Month
127.97"
(3,250.44mm)
119.78"
(3,042.41mm)
8.19"
(208.03mm)
111th Driest
Driest since:
1956
14th Wettest
Wettest since:
2019
Nov 1979–Oct 1984
60-Month
157.11"
(3,990.59mm)
149.66"
(3,801.36mm)
7.45"
(189.23mm)
105th Driest
Driest since:
1934
19th Wettest
Wettest since:
2019

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