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 2002

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 2002
1-Month
2.64"
(67.06mm)
2.91"
(73.91mm)
-0.27"
(-6.85mm)
35th Driest
Driest since:
1934
94th Wettest
Wettest since:
2019
Ties: 1917
Apr–May 2002
2-Month
4.90"
(124.46mm)
5.43"
(137.92mm)
-0.53"
(-13.46mm)
30th Driest
Driest since:
1934
99th Wettest
Wettest since:
1957
Mar–May 2002
3-Month
7.49"
(190.25mm)
7.94"
(201.68mm)
-0.45"
(-11.43mm)
41st Driest
Driest since:
1925
88th Wettest
Wettest since:
1957, 1991
Feb–May 2002
4-Month
8.81"
(223.77mm)
10.07"
(255.78mm)
-1.26"
(-32.01mm)
14th Driest
Driest since:
1925
115th Wettest
Wettest since:
2019
Jan–May 2002
5-Month
10.82"
(274.83mm)
12.39"
(314.71mm)
-1.57"
(-39.88mm)
10th Driest
Driest since:
1934
119th Wettest
Wettest since:
2019
Dec 2001–May 2002
6-Month
13.18"
(334.77mm)
14.73"
(374.14mm)
-1.55"
(-39.37mm)
14th Driest
Driest since:
1931
114th Wettest
Wettest since:
2019
Nov 2001–May 2002
7-Month
15.57"
(395.48mm)
16.96"
(430.78mm)
-1.39"
(-35.30mm)
23rd Driest
Driest since:
1934
105th Wettest
Wettest since:
1983
Ties: 1939, 1954
Oct 2001–May 2002
8-Month
17.63"
(447.80mm)
19.13"
(485.90mm)
-1.50"
(-38.10mm)
25th Driest
Driest since:
1934
103rd Wettest
Wettest since:
2019
Sep 2001–May 2002
9-Month
20.08"
(510.03mm)
21.62"
(549.15mm)
-1.54"
(-39.12mm)
26th Driest
Driest since:
1934
102nd Wettest
Wettest since:
2019
Aug 2001–May 2002
10-Month
22.49"
(571.25mm)
24.25"
(615.95mm)
-1.76"
(-44.70mm)
25th Driest
Driest since:
1918
103rd Wettest
Wettest since:
2019
Jul 2001–May 2002
11-Month
25.21"
(640.33mm)
27.03"
(686.56mm)
-1.82"
(-46.23mm)
21st Driest
Driest since:
1931
107th Wettest
Wettest since:
2019
Ties: 1953
Jun 2001–May 2002
12-Month
28.33"
(719.58mm)
29.95"
(760.73mm)
-1.62"
(-41.15mm)
28th Driest
Driest since:
1934
100th Wettest
Wettest since:
2019
Dec 2000–May 2002
18-Month
41.55"
(1,055.37mm)
44.70"
(1,135.38mm)
-3.15"
(-80.01mm)
19th Driest
Driest since:
1931
108th Wettest
Wettest since:
2019
Jun 2000–May 2002
24-Month
56.38"
(1,432.05mm)
59.92"
(1,521.97mm)
-3.54"
(-89.92mm)
18th Driest
Driest since:
1931
109th Wettest
Wettest since:
2020
Jun 1999–May 2002
36-Month
83.51"
(2,121.15mm)
89.88"
(2,282.95mm)
-6.37"
(-161.80mm)
7th Driest
Driest since:
1955
119th Wettest
Wettest since:
2019
Jun 1998–May 2002
48-Month
115.32"
(2,929.13mm)
119.78"
(3,042.41mm)
-4.46"
(-113.28mm)
24th Driest
Driest since:
1956
101st Wettest
Wettest since:
2019
Jun 1997–May 2002
60-Month
148.87"
(3,781.30mm)
149.64"
(3,800.86mm)
-0.77"
(-19.56mm)
55th Driest
Driest since:
1957
69th Wettest
Wettest since:
2020

Citing This Page