Regional Rankings

Regional Data Info
Please note, Palmer Indices are not available for NWS Regions. Degree Days are not available for Great Plains, Souther Plains and Gulf Coast Rockies and Westward, River Basins, or Agricultural Belts. 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 1985

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PeriodValue1901-2000
Mean
AnomalyRank
(1895-2022)
Wettest/Driest
Since
Record
May 1985
1-Month
0.35"
(8.89mm)
0.92"
(23.37mm)
-0.57"
(-14.48mm)
14th Driest
Driest since:
1924
115th Wettest
Wettest since:
1998
Ties: 1969
Apr–May 1985
2-Month
0.61"
(15.49mm)
2.26"
(57.40mm)
-1.65"
(-41.91mm)
2nd Driest
Driest since:
1909
127th Wettest
Wettest since:
1896
Mar–May 1985
3-Month
2.81"
(71.37mm)
4.59"
(116.59mm)
-1.78"
(-45.22mm)
21st Driest
Driest since:
2008
108th Wettest
Wettest since:
1995
Feb–May 1985
4-Month
4.14"
(105.16mm)
7.31"
(185.67mm)
-3.17"
(-80.51mm)
12th Driest
Driest since:
1997
117th Wettest
Wettest since:
1998
Jan–May 1985
5-Month
4.87"
(123.70mm)
10.29"
(261.37mm)
-5.42"
(-137.67mm)
6th Driest
Driest since:
2022
123rd Wettest
Wettest since:
1998
Dec 1984–May 1985
6-Month
7.05"
(179.07mm)
12.84"
(326.14mm)
-5.79"
(-147.07mm)
5th Driest
Driest since:
1924
123rd Wettest
Wettest since:
1995
Nov 1984–May 1985
7-Month
11.26"
(286.00mm)
14.71"
(373.63mm)
-3.45"
(-87.63mm)
29th Driest
Driest since:
1977
99th Wettest
Wettest since:
1995
Oct 1984–May 1985
8-Month
12.73"
(323.34mm)
15.74"
(399.80mm)
-3.01"
(-76.46mm)
42nd Driest
Driest since:
1977
86th Wettest
Wettest since:
1983
Sep 1984–May 1985
9-Month
13.10"
(332.74mm)
16.23"
(412.24mm)
-3.13"
(-79.50mm)
42nd Driest
Driest since:
2021
86th Wettest
Wettest since:
1983
Aug 1984–May 1985
10-Month
14.04"
(356.62mm)
16.62"
(422.15mm)
-2.58"
(-65.53mm)
47th Driest
Driest since:
2021
81st Wettest
Wettest since:
1983
Jul 1984–May 1985
11-Month
15.15"
(384.81mm)
16.95"
(430.53mm)
-1.80"
(-45.72mm)
56th Driest
Driest since:
2021
72nd Wettest
Wettest since:
1983
Jun 1984–May 1985
12-Month
15.79"
(401.07mm)
17.44"
(442.98mm)
-1.65"
(-41.91mm)
56th Driest
Driest since:
2021
72nd Wettest
Wettest since:
1983
Dec 1983–May 1985
18-Month
25.88"
(657.35mm)
30.25"
(768.35mm)
-4.37"
(-111.00mm)
36th Driest
Driest since:
1977
91st Wettest
Wettest since:
1983
Jun 1983–May 1985
24-Month
34.91"
(886.71mm)
34.89"
(886.21mm)
0.02"
(0.50mm)
70th Driest
Driest since:
2022
57th Wettest
Wettest since:
1983
Jun 1982–May 1985
36-Month
65.39"
(1,660.91mm)
52.30"
(1,328.42mm)
13.09"
(332.49mm)
120th Driest
Driest since:
2022
6th Wettest
Wettest since:
1984
Jun 1981–May 1985
48-Month
87.60"
(2,225.04mm)
69.56"
(1,766.82mm)
18.04"
(458.22mm)
122nd Driest
Driest since:
2015
3rd Wettest
Wettest since:
1998
Jun 1980–May 1985
60-Month
101.59"
(2,580.39mm)
86.83"
(2,205.48mm)
14.76"
(374.91mm)
116th Driest
Driest since:
1933
8th Wettest
Wettest since:
1999

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