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, April 1972

View Period (Months):
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  • Record Driest
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Wettest/Driest
Since
Record
April 1972
1-Month
1.00"
(25.40mm)
1.33"
(33.78mm)
-0.33"
(-8.38mm)
50th Driest
Driest since:
1909
79th Wettest
Wettest since:
1935
Mar–Apr 1972
2-Month
1.82"
(46.23mm)
3.67"
(93.22mm)
-1.85"
(-46.99mm)
14th Driest
Driest since:
2008
115th Wettest
Wettest since:
1983
Feb–Apr 1972
3-Month
3.16"
(80.26mm)
6.39"
(162.31mm)
-3.23"
(-82.05mm)
10th Driest
Driest since:
1997
119th Wettest
Wettest since:
1983
Jan–Apr 1972
4-Month
4.41"
(112.01mm)
9.37"
(238.00mm)
-4.96"
(-125.99mm)
5th Driest
Driest since:
2022
124th Wettest
Wettest since:
1995
Dec 1971–Apr 1972
5-Month
8.15"
(207.01mm)
11.92"
(302.77mm)
-3.77"
(-95.76mm)
19th Driest
Driest since:
1977
109th Wettest
Wettest since:
1978
Ties: 1994
Nov 1971–Apr 1972
6-Month
9.81"
(249.17mm)
13.79"
(350.27mm)
-3.98"
(-101.10mm)
25th Driest
Driest since:
1977
103rd Wettest
Wettest since:
1983
Oct 1971–Apr 1972
7-Month
10.40"
(264.16mm)
14.82"
(376.43mm)
-4.42"
(-112.27mm)
19th Driest
Driest since:
1977
109th Wettest
Wettest since:
1983
Sep 1971–Apr 1972
8-Month
10.87"
(276.10mm)
15.31"
(388.87mm)
-4.44"
(-112.77mm)
18th Driest
Driest since:
1977
110th Wettest
Wettest since:
1983
Aug 1971–Apr 1972
9-Month
11.35"
(288.29mm)
15.70"
(398.78mm)
-4.35"
(-110.49mm)
20th Driest
Driest since:
1977
108th Wettest
Wettest since:
1983
Jul 1971–Apr 1972
10-Month
11.62"
(295.15mm)
16.03"
(407.16mm)
-4.41"
(-112.01mm)
19th Driest
Driest since:
2021
109th Wettest
Wettest since:
1983
Jun 1971–Apr 1972
11-Month
12.15"
(308.61mm)
16.52"
(419.61mm)
-4.37"
(-111.00mm)
20th Driest
Driest since:
2021
108th Wettest
Wettest since:
1983
May 1971–Apr 1972
12-Month
14.05"
(356.87mm)
17.44"
(442.98mm)
-3.39"
(-86.11mm)
36th Driest
Driest since:
1977
92nd Wettest
Wettest since:
1983
Nov 1970–Apr 1972
18-Month
28.15"
(715.01mm)
31.22"
(792.99mm)
-3.07"
(-77.98mm)
41st Driest
Driest since:
1977
86th Wettest
Wettest since:
1983
May 1970–Apr 1972
24-Month
31.26"
(794.00mm)
34.90"
(886.46mm)
-3.64"
(-92.46mm)
40th Driest
Driest since:
1977
87th Wettest
Wettest since:
1983
May 1969–Apr 1972
36-Month
48.64"
(1,235.46mm)
52.30"
(1,328.42mm)
-3.66"
(-92.96mm)
49th Driest
Driest since:
2022
77th Wettest
Wettest since:
1984
Ties: 2008
May 1968–Apr 1972
48-Month
72.89"
(1,851.41mm)
69.56"
(1,766.82mm)
3.33"
(84.59mm)
87th Driest
Driest since:
2015
38th Wettest
Wettest since:
1998
May 1967–Apr 1972
60-Month
87.63"
(2,225.80mm)
86.83"
(2,205.48mm)
0.80"
(20.32mm)
75th Driest
Driest since:
1933
49th Wettest
Wettest since:
1999

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