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 1973

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 1973
1-Month
2.37"
(60.20mm)
2.16"
(54.86mm)
0.21"
(5.34mm)
80th Driest
Driest since:
1952
49th Wettest
Wettest since:
2009
Ties: 2005
Sep–Oct 1973
2-Month
5.83"
(148.08mm)
4.65"
(118.11mm)
1.18"
(29.97mm)
118th Driest
Driest since:
1952
11th Wettest
Wettest since:
2018
Aug–Oct 1973
3-Month
7.89"
(200.41mm)
7.27"
(184.66mm)
0.62"
(15.75mm)
92nd Driest
Driest since:
1952
37th Wettest
Wettest since:
2018
Ties: 1898
Jul–Oct 1973
4-Month
10.85"
(275.59mm)
10.05"
(255.27mm)
0.80"
(20.32mm)
100th Driest
Driest since:
1952
29th Wettest
Wettest since:
1941
Jun–Oct 1973
5-Month
13.90"
(353.06mm)
12.97"
(329.44mm)
0.93"
(23.62mm)
94th Driest
Driest since:
1952
35th Wettest
Wettest since:
1941
May–Oct 1973
6-Month
16.93"
(430.02mm)
15.88"
(403.35mm)
1.05"
(26.67mm)
94th Driest
Driest since:
1952
35th Wettest
Wettest since:
1941
Apr–Oct 1973
7-Month
20.26"
(514.60mm)
18.40"
(467.36mm)
1.86"
(47.24mm)
113th Driest
Driest since:
1952
16th Wettest
Wettest since:
1941
Mar–Oct 1973
8-Month
24.26"
(616.20mm)
20.91"
(531.11mm)
3.35"
(85.09mm)
125th Driest
Driest since:
1956
4th Wettest
Wettest since:
2019
Feb–Oct 1973
9-Month
26.22"
(665.99mm)
23.04"
(585.22mm)
3.18"
(80.77mm)
125th Driest
Driest since:
1934
4th Wettest
Wettest since:
2019
Ties: 1957
Jan–Oct 1973
10-Month
28.70"
(728.98mm)
25.36"
(644.14mm)
3.34"
(84.84mm)
125th Driest
Driest since:
1934
4th Wettest
Wettest to Date
2019
Dec 1972–Oct 1973
11-Month
31.72"
(805.69mm)
27.70"
(703.58mm)
4.02"
(102.11mm)
125th Driest
Driest since:
1931
3rd Wettest
Wettest to Date
2019
Nov 1972–Oct 1973
12-Month
34.77"
(883.16mm)
29.93"
(760.22mm)
4.84"
(122.94mm)
126th Driest
Driest since:
1934
2nd Wettest
Wettest to Date
2019
May 1972–Oct 1973
18-Month
51.88"
(1,317.75mm)
45.83"
(1,164.08mm)
6.05"
(153.67mm)
125th Driest
Driest since:
1931
3rd Wettest
Wettest to Date
2019
Nov 1971–Oct 1973
24-Month
65.63"
(1,667.00mm)
59.90"
(1,521.46mm)
5.73"
(145.54mm)
118th Driest
Driest since:
1931
9th Wettest
Wettest to Date
2019
Nov 1970–Oct 1973
36-Month
95.15"
(2,416.81mm)
89.86"
(2,282.44mm)
5.29"
(134.37mm)
109th Driest
Driest since:
1956
17th Wettest
Wettest to Date
2019
Nov 1969–Oct 1973
48-Month
124.96"
(3,173.98mm)
119.78"
(3,042.41mm)
5.18"
(131.57mm)
104th Driest
Driest since:
1956
21st Wettest
Wettest since:
2019
Nov 1968–Oct 1973
60-Month
156.70"
(3,980.18mm)
149.66"
(3,801.36mm)
7.04"
(178.82mm)
103rd Driest
Driest since:
1934
21st Wettest
Wettest to Date
2019

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