National Rankings

National Data Info
Please note, 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.

May 1972 Precipitation Rankings

View Period (Months):
  • Record Driest
  • Bottom ⅒
  • Bottom ⅓
  • Normal
  • Top ⅓
  • Top ⅒
  • Record Wettest
PeriodValue
1901-2000
Mean
AnomalyRank
(1895-2025)
Driest/Wettest
Since
Record
May 1972
1-Month
2.95in
(74.93mm)
2.91in
(73.91mm)
0.04in68th Driest
Driest since:
1934
63rd Wettest
Wettest since:
2019
Apr–May 1972
2-Month
5.21in
(132.33mm)
5.42in
(137.67mm)
-0.21in49th Driest
Driest since:
1934
82nd Wettest
Wettest since:
1957
Ties: 1914
Mar–May 1972
3-Month
7.34in
(186.44mm)
7.93in
(201.42mm)
-0.59in32nd Driest
Driest since:
1925
99th Wettest
Wettest since:
1957, 1991
Feb–May 1972
4-Month
9.14in
(232.16mm)
10.07in
(255.78mm)
-0.93in23rd Driest
Driest since:
1925
108th Wettest
Wettest since:
2019
Ties: 1914
Jan–May 1972
5-Month
11.47in
(291.34mm)
12.38in
(314.45mm)
-0.91in27th Driest
Driest since:
1934
104th Wettest
Wettest since:
2019
Dec 1971–May 1972
6-Month
14.67in
(372.62mm)
14.72in
(373.89mm)
-0.05in62nd Driest
Driest since:
1931
68th Wettest
Wettest since:
2019
Nov 1971–May 1972
7-Month
16.70in
(424.18mm)
16.95in
(430.53mm)
-0.25in58th Driest
Driest since:
1934
72nd Wettest
Wettest since:
1983
Oct 1971–May 1972
8-Month
19.42in
(493.27mm)
19.12in
(485.65mm)
0.30in70th Driest
Driest since:
1934
60th Wettest
Wettest since:
2019
Sep 1971–May 1972
9-Month
22.25in
(565.15mm)
21.61in
(548.89mm)
0.64in83rd Driest
Driest since:
1934
47th Wettest
Wettest since:
2019
Aug 1971–May 1972
10-Month
25.00in
(635.00mm)
24.23in
(615.44mm)
0.77in81st Driest
Driest since:
1918
49th Wettest
Wettest since:
2019
Ties: 1929, 1960
Jul 1971–May 1972
11-Month
28.00in
(711.20mm)
27.02in
(686.31mm)
0.98in86th Driest
Driest since:
1931
44th Wettest
Wettest since:
2019
Jun 1971–May 1972
12-Month
30.53in
(775.46mm)
29.94in
(760.48mm)
0.59in80th Driest
Driest since:
1934
50th Wettest
Wettest since:
2019
Dec 1970–May 1972
18-Month
44.01in
(1,117.85mm)
44.67in-0.66in51st Driest
Driest since:
1931
78th Wettest
Wettest since:
2019
Jun 1970–May 1972
24-Month
59.69in
(1,516.13mm)
59.89in-0.20in57th Driest
Driest since:
1931
72nd Wettest
Wettest since:
2020
Ties: 1962
Jun 1969–May 1972
36-Month
89.68in
(2,277.87mm)
89.83in-0.15in60th Driest
Driest since:
1955
68th Wettest
Wettest since:
2019
Jun 1968–May 1972
48-Month
120.85in
(3,069.59mm)
119.71in1.14in68th Driest
Driest since:
1956
59th Wettest
Wettest since:
2019
Jun 1967–May 1972
60-Month
150.92in
(3,833.37mm)
149.56in1.36in65th Driest
Driest since:
1957
61st Wettest
Wettest since:
2020

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