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.

Southwest 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
0.74"
(18.80mm)
1.11"
(28.19mm)
-0.37"
(-9.39mm)
31st Driest
Driest since:
1974
98th Wettest
Wettest since:
2015
Ties: 1961, 1962, 1989
Apr–May 1984
2-Month
1.96"
(49.78mm)
2.17"
(55.12mm)
-0.21"
(-5.34mm)
58th Driest
Driest since:
2002
71st Wettest
Wettest since:
1941
Mar–May 1984
3-Month
3.02"
(76.71mm)
3.33"
(84.58mm)
-0.31"
(-7.87mm)
54th Driest
Driest since:
2002
75th Wettest
Wettest since:
1941
Ties: 1954
Feb–May 1984
4-Month
3.45"
(87.63mm)
4.33"
(109.98mm)
-0.88"
(-22.35mm)
35th Driest
Driest since:
2002
94th Wettest
Wettest since:
1905
Jan–May 1984
5-Month
3.95"
(100.33mm)
5.31"
(134.87mm)
-1.36"
(-34.54mm)
25th Driest
Driest since:
1972
104th Wettest
Wettest since:
1905
Dec 1983–May 1984
6-Month
5.70"
(144.78mm)
6.32"
(160.53mm)
-0.62"
(-15.75mm)
50th Driest
Driest since:
2002
78th Wettest
Wettest since:
1905
Nov 1983–May 1984
7-Month
7.42"
(188.47mm)
7.21"
(183.13mm)
0.21"
(5.34mm)
83rd Driest
Driest since:
2002
45th Wettest
Wettest since:
1941
Oct 1983–May 1984
8-Month
8.89"
(225.81mm)
8.34"
(211.84mm)
0.55"
(13.97mm)
83rd Driest
Driest since:
2002
45th Wettest
Wettest since:
1941
Sep 1983–May 1984
9-Month
10.77"
(273.56mm)
9.71"
(246.63mm)
1.06"
(26.93mm)
96th Driest
Driest since:
2002
32nd Wettest
Wettest since:
1941
Aug 1983–May 1984
10-Month
12.97"
(329.44mm)
11.72"
(297.69mm)
1.25"
(31.75mm)
98th Driest
Driest since:
2002
30th Wettest
Wettest since:
1941
Ties: 2007
Jul 1983–May 1984
11-Month
14.65"
(372.11mm)
13.59"
(345.19mm)
1.06"
(26.92mm)
88th Driest
Driest since:
2021
40th Wettest
Wettest since:
1941
Jun 1983–May 1984
12-Month
15.68"
(398.27mm)
14.53"
(369.06mm)
1.15"
(29.21mm)
91st Driest
Driest since:
2021
37th Wettest
Wettest since:
1905
Ties: 1919
Dec 1982–May 1984
18-Month
24.20"
(614.68mm)
20.86"
(529.84mm)
3.34"
(84.84mm)
111th Driest
Driest since:
2021
16th Wettest
Wettest since:
1942
Jun 1982–May 1984
24-Month
33.99"
(863.35mm)
29.05"
(737.87mm)
4.94"
(125.48mm)
117th Driest
Driest since:
2021
10th Wettest
Wettest since:
1942
Jun 1981–May 1984
36-Month
49.55"
(1,258.57mm)
43.54"
(1,105.92mm)
6.01"
(152.65mm)
115th Driest
Driest since:
2022
11th Wettest
Wettest since:
1907
Jun 1980–May 1984
48-Month
61.19"
(1,554.23mm)
58.01"
(1,473.45mm)
3.18"
(80.78mm)
98th Driest
Driest since:
1904
27th Wettest
Wettest since:
1986
Jun 1979–May 1984
60-Month
77.39"
(1,965.71mm)
72.48"
(1,840.99mm)
4.91"
(124.72mm)
101st Driest
Driest since:
1957
23rd Wettest
Wettest since:
1987

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