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 2002

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 2002
1-Month
0.26"
(6.60mm)
1.11"
(28.19mm)
-0.85"
(-21.59mm)
2nd Driest
Driest since:
1974
127th Wettest
Wettest since:
2015
Apr–May 2002
2-Month
0.69"
(17.53mm)
2.17"
(55.12mm)
-1.48"
(-37.59mm)
1st Driest
Driest since:
2002
128th Wettest
Wettest since:
1941
Mar–May 2002
3-Month
1.24"
(31.50mm)
3.33"
(84.58mm)
-2.09"
(-53.08mm)
1st Driest
Driest since:
2002
128th Wettest
Wettest since:
1941
Feb–May 2002
4-Month
1.54"
(39.12mm)
4.33"
(109.98mm)
-2.79"
(-70.86mm)
1st Driest
Driest since:
2002
128th Wettest
Wettest since:
1905
Jan–May 2002
5-Month
1.98"
(50.29mm)
5.31"
(134.87mm)
-3.33"
(-84.58mm)
2nd Driest
Driest since:
1972
127th Wettest
Wettest since:
1905
Dec 2001–May 2002
6-Month
2.70"
(68.58mm)
6.32"
(160.53mm)
-3.62"
(-91.95mm)
1st Driest
Driest since:
2002
127th Wettest
Wettest since:
1905
Nov 2001–May 2002
7-Month
3.64"
(92.46mm)
7.21"
(183.13mm)
-3.57"
(-90.67mm)
1st Driest
Driest since:
2002
127th Wettest
Wettest since:
1941
Oct 2001–May 2002
8-Month
4.08"
(103.63mm)
8.34"
(211.84mm)
-4.26"
(-108.21mm)
1st Driest
Driest since:
2002
127th Wettest
Wettest since:
1941
Sep 2001–May 2002
9-Month
4.77"
(121.16mm)
9.71"
(246.63mm)
-4.94"
(-125.47mm)
1st Driest
Driest since:
2002
127th Wettest
Wettest since:
1941
Aug 2001–May 2002
10-Month
6.74"
(171.20mm)
11.72"
(297.69mm)
-4.98"
(-126.49mm)
1st Driest
Driest since:
2002
127th Wettest
Wettest since:
1941
Jul 2001–May 2002
11-Month
8.44"
(214.38mm)
13.59"
(345.19mm)
-5.15"
(-130.81mm)
2nd Driest
Driest since:
2021
126th Wettest
Wettest since:
1941
Jun 2001–May 2002
12-Month
9.04"
(229.62mm)
14.53"
(369.06mm)
-5.49"
(-139.44mm)
2nd Driest
Driest since:
2021
126th Wettest
Wettest since:
1905
Dec 2000–May 2002
18-Month
15.22"
(386.59mm)
20.86"
(529.84mm)
-5.64"
(-143.25mm)
3rd Driest
Driest since:
2021
124th Wettest
Wettest since:
1942
Jun 2000–May 2002
24-Month
23.89"
(606.81mm)
29.05"
(737.87mm)
-5.16"
(-131.06mm)
12th Driest
Driest since:
2021
115th Wettest
Wettest since:
1942
Jun 1999–May 2002
36-Month
37.43"
(950.72mm)
43.54"
(1,105.92mm)
-6.11"
(-155.20mm)
12th Driest
Driest since:
2022
114th Wettest
Wettest since:
1907
Jun 1998–May 2002
48-Month
53.12"
(1,349.25mm)
58.01"
(1,473.45mm)
-4.89"
(-124.20mm)
23rd Driest
Driest since:
1904
102nd Wettest
Wettest since:
1986
Jun 1997–May 2002
60-Month
70.56"
(1,792.22mm)
72.48"
(1,840.99mm)
-1.92"
(-48.77mm)
55th Driest
Driest since:
1957
69th Wettest
Wettest since:
1987

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