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.

South Climate Region

Precipitation Rankings, May 2012

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
May 2012
1-Month
2.41"
(61.21mm)
4.05"
(102.87mm)
-1.64"
(-41.66mm)
8th Driest
Driest since:
1998
121st Wettest
Wettest since:
2015
Apr–May 2012
2-Month
4.80"
(121.92mm)
7.26"
(184.40mm)
-2.46"
(-62.48mm)
5th Driest
Driest since:
1998
124th Wettest
Wettest since:
2015
Mar–May 2012
3-Month
9.02"
(229.11mm)
9.96"
(252.98mm)
-0.94"
(-23.87mm)
49th Driest
Driest since:
1925
80th Wettest
Wettest since:
2015
Feb–May 2012
4-Month
11.97"
(304.04mm)
12.19"
(309.63mm)
-0.22"
(-5.59mm)
64th Driest
Driest since:
1925
65th Wettest
Wettest since:
2015
Jan–May 2012
5-Month
14.29"
(362.97mm)
14.42"
(366.27mm)
-0.13"
(-3.30mm)
66th Driest
Driest since:
1963
63rd Wettest
Wettest since:
2015
Dec 2011–May 2012
6-Month
17.89"
(454.41mm)
16.92"
(429.77mm)
0.97"
(24.64mm)
81st Driest
Driest since:
1963
47th Wettest
Wettest since:
2015
Nov 2011–May 2012
7-Month
20.84"
(529.34mm)
19.34"
(491.24mm)
1.50"
(38.10mm)
81st Driest
Driest since:
1971
47th Wettest
Wettest since:
2016
Oct 2011–May 2012
8-Month
22.88"
(581.15mm)
22.04"
(559.82mm)
0.84"
(21.33mm)
69th Driest
Driest since:
1925
59th Wettest
Wettest since:
2019
Sep 2011–May 2012
9-Month
25.30"
(642.62mm)
25.25"
(641.35mm)
0.05"
(1.27mm)
60th Driest
Driest since:
1918
68th Wettest
Wettest since:
2019
Aug 2011–May 2012
10-Month
27.16"
(689.86mm)
28.19"
(716.03mm)
-1.03"
(-26.17mm)
50th Driest
Driest since:
1925
78th Wettest
Wettest since:
2019
Jul 2011–May 2012
11-Month
29.16"
(740.66mm)
31.39"
(797.31mm)
-2.23"
(-56.65mm)
38th Driest
Driest since:
1925
90th Wettest
Wettest since:
2019
Ties: 1976
Jun 2011–May 2012
12-Month
30.85"
(783.59mm)
34.90"
(886.46mm)
-4.05"
(-102.87mm)
26th Driest
Driest since:
1925
102nd Wettest
Wettest since:
2019
Dec 2010–May 2012
18-Month
42.15"
(1,070.61mm)
51.87"
(1,317.50mm)
-9.72"
(-246.89mm)
7th Driest
Driest since:
1918
120th Wettest
Wettest since:
2016
Jun 2010–May 2012
24-Month
59.45"
(1,510.03mm)
69.89"
(1,775.21mm)
-10.44"
(-265.18mm)
8th Driest
Driest since:
1918
119th Wettest
Wettest since:
2020
Jun 2009–May 2012
36-Month
99.79"
(2,534.67mm)
104.83"
(2,662.68mm)
-5.04"
(-128.01mm)
33rd Driest
Driest since:
1956
93rd Wettest
Wettest since:
1975
Jun 2008–May 2012
48-Month
135.37"
(3,438.40mm)
139.71"
(3,548.63mm)
-4.34"
(-110.23mm)
36th Driest
Driest since:
1956
89th Wettest
Wettest since:
1975
Jun 2007–May 2012
60-Month
172.92"
(4,392.17mm)
174.45"
(4,431.03mm)
-1.53"
(-38.86mm)
52nd Driest
Driest since:
1957
72nd Wettest
Wettest since:
2019

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