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 1957 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 1957
1-Month
4.24in
(107.70mm)
2.91in
(73.91mm)
1.33in128th Driest
Driest since:
1934
3rd WettestWettest to Date2019
Apr–May 1957
2-Month
7.89in
(200.41mm)
5.42in
(137.67mm)
2.47in130th Driest
Driest since:
1934
1st WettestWettest to Date1957
Mar–May 1957
3-Month
10.40in
(264.16mm)
7.93in
(201.42mm)
2.47in130th Driest
Driest since:
1925
1st WettestWettest to Date1957, 1991
Feb–May 1957
4-Month
12.48in
(316.99mm)
10.07in
(255.78mm)
2.41in128th Driest
Driest since:
1925
3rd WettestWettest to Date2019
Jan–May 1957
5-Month
14.60in
(370.84mm)
12.38in
(314.45mm)
2.22in122nd Driest
Driest since:
1934
9th WettestWettest to Date2019
Dec 1956–May 1957
6-Month
16.60in
(421.64mm)
14.72in
(373.89mm)
1.88in116th Driest
Driest since:
1931
14th WettestWettest to Date2019
Nov 1956–May 1957
7-Month
17.96in
(456.18mm)
16.95in
(430.53mm)
1.01in95th Driest
Driest since:
1934
35th Wettest
Wettest since:
1983
Oct 1956–May 1957
8-Month
19.96in
(506.98mm)
19.12in
(485.65mm)
0.84in87th Driest
Driest since:
1934
43rd Wettest
Wettest since:
2019
Sep 1956–May 1957
9-Month
21.40in
(543.56mm)
21.61in
(548.89mm)
-0.21in59th Driest
Driest since:
1934
71st Wettest
Wettest since:
2019
Aug 1956–May 1957
10-Month
23.61in
(599.69mm)
24.23in
(615.44mm)
-0.62in44th Driest
Driest since:
1918
86th Wettest
Wettest since:
2019
Jul 1956–May 1957
11-Month
26.39in
(670.31mm)
27.02in
(686.31mm)
-0.63in41st Driest
Driest since:
1931
89th Wettest
Wettest since:
2019
Jun 1956–May 1957
12-Month
28.60in
(726.44mm)
29.94in
(760.48mm)
-1.34in36th Driest
Driest since:
1934
94th Wettest
Wettest since:
2019
Dec 1955–May 1957
18-Month
42.21in
(1,072.13mm)
44.67in-2.46in25th Driest
Driest since:
1931
104th Wettest
Wettest since:
2019
Jun 1955–May 1957
24-Month
56.41in
(1,432.81mm)
59.89in-3.48in19th Driest
Driest since:
1931
110th Wettest
Wettest since:
2020
Jun 1954–May 1957
36-Month
82.57in
(2,097.28mm)
89.83in-7.26in5th Driest
Driest since:
1955
123rd Wettest
Wettest since:
2019
Jun 1953–May 1957
48-Month
108.63in
(2,759.20mm)
119.71in-11.08in2nd Driest
Driest since:
1956
125th Wettest
Wettest since:
2019
Jun 1952–May 1957
60-Month
136.01in
(3,454.65mm)
149.56in-13.55in1st DriestDriest to Date1957
125th Wettest
Wettest since:
2020

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