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 2005

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 2005
1-Month
1.60"
(40.64mm)
1.33"
(33.78mm)
0.27"
(6.86mm)
92nd Driest
Driest since:
1909
37th Wettest
Wettest since:
1935
Mar–Apr 2005
2-Month
4.29"
(108.97mm)
3.67"
(93.22mm)
0.62"
(15.75mm)
89th Driest
Driest since:
2008
40th Wettest
Wettest since:
1983
Feb–Apr 2005
3-Month
7.25"
(184.15mm)
6.39"
(162.31mm)
0.86"
(21.84mm)
90th Driest
Driest since:
1997
39th Wettest
Wettest since:
1983
Jan–Apr 2005
4-Month
11.45"
(290.83mm)
9.37"
(238.00mm)
2.08"
(52.83mm)
100th Driest
Driest since:
2022
29th Wettest
Wettest since:
1995
Dec 2004–Apr 2005
5-Month
15.23"
(386.84mm)
11.92"
(302.77mm)
3.31"
(84.07mm)
104th Driest
Driest since:
1977
24th Wettest
Wettest since:
1978
Nov 2004–Apr 2005
6-Month
16.80"
(426.72mm)
13.79"
(350.27mm)
3.01"
(76.45mm)
100th Driest
Driest since:
1977
28th Wettest
Wettest since:
1983
Oct 2004–Apr 2005
7-Month
19.96"
(506.98mm)
14.82"
(376.43mm)
5.14"
(130.55mm)
113th Driest
Driest since:
1977
15th Wettest
Wettest since:
1983
Sep 2004–Apr 2005
8-Month
20.23"
(513.84mm)
15.31"
(388.87mm)
4.92"
(124.97mm)
112th Driest
Driest since:
1977
16th Wettest
Wettest since:
1983
Aug 2004–Apr 2005
9-Month
20.68"
(525.27mm)
15.70"
(398.78mm)
4.98"
(126.49mm)
112th Driest
Driest since:
1977
16th Wettest
Wettest since:
1983
Jul 2004–Apr 2005
10-Month
20.94"
(531.88mm)
16.03"
(407.16mm)
4.91"
(124.72mm)
112th Driest
Driest since:
2021
16th Wettest
Wettest since:
1983
Jun 2004–Apr 2005
11-Month
21.13"
(536.70mm)
16.52"
(419.61mm)
4.61"
(117.09mm)
112th Driest
Driest since:
2021
16th Wettest
Wettest since:
1983
May 2004–Apr 2005
12-Month
21.64"
(549.66mm)
17.44"
(442.98mm)
4.20"
(106.68mm)
110th Driest
Driest since:
1977
18th Wettest
Wettest since:
1983
Nov 2003–Apr 2005
18-Month
34.82"
(884.43mm)
31.22"
(792.99mm)
3.60"
(91.44mm)
97th Driest
Driest since:
1977
30th Wettest
Wettest since:
1983
May 2003–Apr 2005
24-Month
37.37"
(949.20mm)
34.90"
(886.46mm)
2.47"
(62.74mm)
91st Driest
Driest since:
1977
36th Wettest
Wettest since:
1983
May 2002–Apr 2005
36-Month
54.36"
(1,380.74mm)
52.30"
(1,328.42mm)
2.06"
(52.32mm)
82nd Driest
Driest since:
2022
44th Wettest
Wettest since:
1984
May 2001–Apr 2005
48-Month
67.64"
(1,718.06mm)
69.56"
(1,766.82mm)
-1.92"
(-48.76mm)
61st Driest
Driest since:
2015
64th Wettest
Wettest since:
1998
May 2000–Apr 2005
60-Month
81.90"
(2,080.26mm)
86.83"
(2,205.48mm)
-4.93"
(-125.22mm)
47th Driest
Driest since:
1933
77th Wettest
Wettest since:
1999

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