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, May 2007

View Period (Months):
Download: csv json xml
  • Record Driest
  • Bottom 1/10
  • Bottom 1/3
  • Normal
  • Top 1/3
  • Top 1/10
  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Wettest/Driest
Since
Record
May 2007
1-Month
2.75"
(69.85mm)
2.91"
(73.91mm)
-0.16"
(-4.06mm)
47th Driest
Driest since:
1934
82nd Wettest
Wettest since:
2019
Apr–May 2007
2-Month
5.24"
(133.10mm)
5.43"
(137.92mm)
-0.19"
(-4.82mm)
52nd Driest
Driest since:
1934
77th Wettest
Wettest since:
1957
Ties: 1906
Mar–May 2007
3-Month
7.55"
(191.77mm)
7.94"
(201.68mm)
-0.39"
(-9.91mm)
45th Driest
Driest since:
1925
84th Wettest
Wettest since:
1957, 1991
Ties: 1913, 1967
Feb–May 2007
4-Month
9.31"
(236.47mm)
10.07"
(255.78mm)
-0.76"
(-19.31mm)
28th Driest
Driest since:
1925
101st Wettest
Wettest since:
2019
Jan–May 2007
5-Month
11.53"
(292.86mm)
12.39"
(314.71mm)
-0.86"
(-21.85mm)
30th Driest
Driest since:
1934
99th Wettest
Wettest since:
2019
Dec 2006–May 2007
6-Month
14.10"
(358.14mm)
14.73"
(374.14mm)
-0.63"
(-16.00mm)
47th Driest
Driest since:
1931
81st Wettest
Wettest since:
2019
Nov 2006–May 2007
7-Month
16.56"
(420.62mm)
16.96"
(430.78mm)
-0.40"
(-10.16mm)
54th Driest
Driest since:
1934
74th Wettest
Wettest since:
1983
Ties: 2013
Oct 2006–May 2007
8-Month
19.46"
(494.28mm)
19.13"
(485.90mm)
0.33"
(8.38mm)
73rd Driest
Driest since:
1934
55th Wettest
Wettest since:
2019
Ties: 1990
Sep 2006–May 2007
9-Month
22.26"
(565.40mm)
21.62"
(549.15mm)
0.64"
(16.25mm)
82nd Driest
Driest since:
1934
46th Wettest
Wettest since:
2019
Ties: 1972
Aug 2006–May 2007
10-Month
25.06"
(636.52mm)
24.25"
(615.95mm)
0.81"
(20.57mm)
84th Driest
Driest since:
1918
44th Wettest
Wettest since:
2019
Jul 2006–May 2007
11-Month
27.52"
(699.01mm)
27.03"
(686.56mm)
0.49"
(12.45mm)
74th Driest
Driest since:
1931
54th Wettest
Wettest since:
2019
Jun 2006–May 2007
12-Month
30.08"
(764.03mm)
29.95"
(760.73mm)
0.13"
(3.30mm)
62nd Driest
Driest since:
1934
66th Wettest
Wettest since:
2019
Ties: 1968
Dec 2005–May 2007
18-Month
43.64"
(1,108.46mm)
44.70"
(1,135.38mm)
-1.06"
(-26.92mm)
39th Driest
Driest since:
1931
88th Wettest
Wettest since:
2019
Jun 2005–May 2007
24-Month
59.00"
(1,498.60mm)
59.92"
(1,521.97mm)
-0.92"
(-23.37mm)
47th Driest
Driest since:
1931
80th Wettest
Wettest since:
2020
Jun 2004–May 2007
36-Month
92.41"
(2,347.21mm)
89.88"
(2,282.95mm)
2.53"
(64.26mm)
87th Driest
Driest since:
1955
39th Wettest
Wettest since:
2019
Jun 2003–May 2007
48-Month
122.91"
(3,121.91mm)
119.78"
(3,042.41mm)
3.13"
(79.50mm)
89th Driest
Driest since:
1956
36th Wettest
Wettest since:
2019
Jun 2002–May 2007
60-Month
153.42"
(3,896.87mm)
149.64"
(3,800.86mm)
3.78"
(96.01mm)
87th Driest
Driest since:
1957
37th Wettest
Wettest since:
2020

Citing This Page