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 1984

View Period (Months):
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Wettest/Driest
Since
Record
May 1984
1-Month
0.42"
(10.67mm)
0.92"
(23.37mm)
-0.50"
(-12.70mm)
22nd Driest
Driest since:
1924
107th Wettest
Wettest since:
1998
Ties: 1976
Apr–May 1984
2-Month
1.51"
(38.35mm)
2.26"
(57.40mm)
-0.75"
(-19.05mm)
29th Driest
Driest since:
1909
100th Wettest
Wettest since:
1896
Mar–May 1984
3-Month
2.88"
(73.15mm)
4.59"
(116.59mm)
-1.71"
(-43.44mm)
24th Driest
Driest since:
2008
105th Wettest
Wettest since:
1995
Feb–May 1984
4-Month
4.50"
(114.30mm)
7.31"
(185.67mm)
-2.81"
(-71.37mm)
21st Driest
Driest since:
1997
108th Wettest
Wettest since:
1998
Jan–May 1984
5-Month
4.84"
(122.94mm)
10.29"
(261.37mm)
-5.45"
(-138.43mm)
5th Driest
Driest since:
2022
124th Wettest
Wettest since:
1998
Dec 1983–May 1984
6-Month
10.09"
(256.29mm)
12.84"
(326.14mm)
-2.75"
(-69.85mm)
36th Driest
Driest since:
1924
92nd Wettest
Wettest since:
1995
Nov 1983–May 1984
7-Month
14.75"
(374.65mm)
14.71"
(373.63mm)
0.04"
(1.02mm)
75th Driest
Driest since:
1977
53rd Wettest
Wettest since:
1995
Oct 1983–May 1984
8-Month
15.84"
(402.34mm)
15.74"
(399.80mm)
0.10"
(2.54mm)
71st Driest
Driest since:
1977
57th Wettest
Wettest since:
1983
Sep 1983–May 1984
9-Month
16.87"
(428.50mm)
16.23"
(412.24mm)
0.64"
(16.26mm)
78th Driest
Driest since:
2021
50th Wettest
Wettest since:
1983
Aug 1983–May 1984
10-Month
18.55"
(471.17mm)
16.62"
(422.15mm)
1.93"
(49.02mm)
91st Driest
Driest since:
2021
37th Wettest
Wettest since:
1983
Jul 1983–May 1984
11-Month
18.67"
(474.22mm)
16.95"
(430.53mm)
1.72"
(43.69mm)
88th Driest
Driest since:
2021
40th Wettest
Wettest since:
1983
Jun 1983–May 1984
12-Month
19.12"
(485.65mm)
17.44"
(442.98mm)
1.68"
(42.67mm)
90th Driest
Driest since:
2021
38th Wettest
Wettest since:
1983
Ties: 2016
Dec 1982–May 1984
18-Month
40.46"
(1,027.68mm)
30.25"
(768.35mm)
10.21"
(259.33mm)
120th Driest
Driest since:
1977
7th Wettest
Wettest since:
1983
Jun 1982–May 1984
24-Month
49.60"
(1,259.84mm)
34.89"
(886.21mm)
14.71"
(373.63mm)
125th Driest
Driest since:
2022
2nd Wettest
Wettest since:
1983
Jun 1981–May 1984
36-Month
71.81"
(1,823.97mm)
52.30"
(1,328.42mm)
19.51"
(495.55mm)
125th Driest
Driest since:
2022
1st Wettest
Wettest to Date
1984
Jun 1980–May 1984
48-Month
85.80"
(2,179.32mm)
69.56"
(1,766.82mm)
16.24"
(412.50mm)
119th Driest
Driest since:
2015
6th Wettest
Wettest since:
1998
Jun 1979–May 1984
60-Month
108.23"
(2,749.04mm)
86.83"
(2,205.48mm)
21.40"
(543.56mm)
121st Driest
Driest since:
1933
3rd Wettest
Wettest to Date
1999

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