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 2006

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 2006
1-Month
3.17"
(80.52mm)
1.33"
(33.78mm)
1.84"
(46.74mm)
125th Driest
Driest since:
1909
4th Wettest
Wettest since:
1935
Mar–Apr 2006
2-Month
7.07"
(179.58mm)
3.67"
(93.22mm)
3.40"
(86.36mm)
123rd Driest
Driest since:
2008
6th Wettest
Wettest since:
1983
Feb–Apr 2006
3-Month
8.98"
(228.09mm)
6.39"
(162.31mm)
2.59"
(65.78mm)
112th Driest
Driest since:
1997
17th Wettest
Wettest since:
1983
Jan–Apr 2006
4-Month
12.25"
(311.15mm)
9.37"
(238.00mm)
2.88"
(73.15mm)
105th Driest
Driest since:
2022
24th Wettest
Wettest since:
1995
Dec 2005–Apr 2006
5-Month
17.60"
(447.04mm)
11.92"
(302.77mm)
5.68"
(144.27mm)
116th Driest
Driest since:
1977
12th Wettest
Wettest since:
1978
Nov 2005–Apr 2006
6-Month
19.23"
(488.44mm)
13.79"
(350.27mm)
5.44"
(138.17mm)
115th Driest
Driest since:
1977
13th Wettest
Wettest since:
1983
Oct 2005–Apr 2006
7-Month
20.18"
(512.57mm)
14.82"
(376.43mm)
5.36"
(136.14mm)
114th Driest
Driest since:
1977
14th Wettest
Wettest since:
1983
Sep 2005–Apr 2006
8-Month
20.52"
(521.21mm)
15.31"
(388.87mm)
5.21"
(132.34mm)
114th Driest
Driest since:
1977
14th Wettest
Wettest since:
1983
Aug 2005–Apr 2006
9-Month
20.93"
(531.62mm)
15.70"
(398.78mm)
5.23"
(132.84mm)
113th Driest
Driest since:
1977
15th Wettest
Wettest since:
1983
Jul 2005–Apr 2006
10-Month
21.16"
(537.46mm)
16.03"
(407.16mm)
5.13"
(130.30mm)
113th Driest
Driest since:
2021
15th Wettest
Wettest since:
1983
Jun 2005–Apr 2006
11-Month
21.76"
(552.70mm)
16.52"
(419.61mm)
5.24"
(133.09mm)
113th Driest
Driest since:
2021
15th Wettest
Wettest since:
1983
May 2005–Apr 2006
12-Month
24.07"
(611.38mm)
17.44"
(442.98mm)
6.63"
(168.40mm)
116th Driest
Driest since:
1977
12th Wettest
Wettest since:
1983
Nov 2004–Apr 2006
18-Month
40.87"
(1,038.10mm)
31.22"
(792.99mm)
9.65"
(245.11mm)
117th Driest
Driest since:
1977
10th Wettest
Wettest since:
1983
May 2004–Apr 2006
24-Month
45.71"
(1,161.03mm)
34.90"
(886.46mm)
10.81"
(274.57mm)
120th Driest
Driest since:
1977
7th Wettest
Wettest since:
1983
May 2003–Apr 2006
36-Month
61.44"
(1,560.58mm)
52.30"
(1,328.42mm)
9.14"
(232.16mm)
112th Driest
Driest since:
2022
14th Wettest
Wettest since:
1984
May 2002–Apr 2006
48-Month
78.43"
(1,992.12mm)
69.56"
(1,766.82mm)
8.87"
(225.30mm)
103rd Driest
Driest since:
2015
22nd Wettest
Wettest since:
1998
May 2001–Apr 2006
60-Month
91.71"
(2,329.43mm)
86.83"
(2,205.48mm)
4.88"
(123.95mm)
90th Driest
Driest since:
1933
34th Wettest
Wettest since:
1999

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