Regional Rankings

Regional Data Info
Please note, Palmer Indices are not available for NWS Regions. Palmer Drought Severity Index (PDSI), Palmer Hydrological Drought Index (PHDI), and Palmer Modified Drought Index (PMDI) are not offered for multiple-month time scales.

West Climate Region

Precipitation Rankings, May 1928

View Period (Months):
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Wettest/Driest
Since
Record
May 1928
1-Month
0.50"
(12.70mm)
0.92"
(23.37mm)
-0.42"
(-10.67mm)
30th Driest
Driest since:
1924
99th Wettest
Wettest since:
1998
Ties: 1903, 1919, 1940, 1999
Apr–May 1928
2-Month
1.60"
(40.64mm)
2.26"
(57.40mm)
-0.66"
(-16.76mm)
39th Driest
Driest since:
1909
90th Wettest
Wettest since:
1896
Mar–May 1928
3-Month
4.88"
(123.95mm)
4.59"
(116.59mm)
0.29"
(7.36mm)
79th Driest
Driest since:
2008
50th Wettest
Wettest since:
1995
Feb–May 1928
4-Month
6.41"
(162.81mm)
7.31"
(185.67mm)
-0.90"
(-22.86mm)
54th Driest
Driest since:
1997
75th Wettest
Wettest since:
1998
Jan–May 1928
5-Month
7.64"
(194.06mm)
10.29"
(261.37mm)
-2.65"
(-67.31mm)
33rd Driest
Driest since:
2022
96th Wettest
Wettest since:
1998
Dec 1927–May 1928
6-Month
9.69"
(246.13mm)
12.84"
(326.14mm)
-3.15"
(-80.01mm)
31st Driest
Driest since:
1924
97th Wettest
Wettest since:
1995
Nov 1927–May 1928
7-Month
12.30"
(312.42mm)
14.71"
(373.63mm)
-2.41"
(-61.21mm)
46th Driest
Driest since:
1977
82nd Wettest
Wettest since:
1995
Ties: 1908
Oct 1927–May 1928
8-Month
14.01"
(355.85mm)
15.74"
(399.80mm)
-1.73"
(-43.95mm)
57th Driest
Driest since:
1977
71st Wettest
Wettest since:
1983
Sep 1927–May 1928
9-Month
14.32"
(363.73mm)
16.23"
(412.24mm)
-1.91"
(-48.51mm)
57th Driest
Driest since:
2021
71st Wettest
Wettest since:
1983
Aug 1927–May 1928
10-Month
14.57"
(370.08mm)
16.62"
(422.15mm)
-2.05"
(-52.07mm)
56th Driest
Driest since:
2021
72nd Wettest
Wettest since:
1983
Jul 1927–May 1928
11-Month
14.86"
(377.44mm)
16.95"
(430.53mm)
-2.09"
(-53.09mm)
53rd Driest
Driest since:
2021
75th Wettest
Wettest since:
1983
Jun 1927–May 1928
12-Month
15.24"
(387.10mm)
17.44"
(442.98mm)
-2.20"
(-55.88mm)
52nd Driest
Driest since:
2021
76th Wettest
Wettest since:
1983
Dec 1926–May 1928
18-Month
28.48"
(723.39mm)
30.25"
(768.35mm)
-1.77"
(-44.96mm)
52nd Driest
Driest since:
1977
75th Wettest
Wettest since:
1983
Jun 1926–May 1928
24-Month
35.04"
(890.02mm)
34.89"
(886.21mm)
0.15"
(3.81mm)
71st Driest
Driest since:
2022
56th Wettest
Wettest since:
1983
Jun 1925–May 1928
36-Month
51.05"
(1,296.67mm)
52.30"
(1,328.42mm)
-1.25"
(-31.75mm)
66th Driest
Driest since:
2022
60th Wettest
Wettest since:
1984
Jun 1924–May 1928
48-Month
67.90"
(1,724.66mm)
69.56"
(1,766.82mm)
-1.66"
(-42.16mm)
63rd Driest
Driest since:
2015
62nd Wettest
Wettest since:
1998
Jun 1923–May 1928
60-Month
78.42"
(1,991.87mm)
86.83"
(2,205.48mm)
-8.41"
(-213.61mm)
28th Driest
Driest since:
1933
96th Wettest
Wettest since:
1999

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