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, July 1981

View Period (Months):
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Wettest/Driest
Since
Record
July 1981
1-Month
2.26"
(57.40mm)
1.87"
(47.50mm)
0.39"
(9.90mm)
96th Driest
Driest since:
2003
33rd Wettest
Wettest since:
1914
Ties: 1915
Jun–Jul 1981
2-Month
3.13"
(79.50mm)
2.81"
(71.37mm)
0.32"
(8.13mm)
95th Driest
Driest since:
1980
34th Wettest
Wettest since:
1921
Ties: 2010
May–Jul 1981
3-Month
4.87"
(123.70mm)
3.93"
(99.82mm)
0.94"
(23.88mm)
114th Driest
Driest since:
2002
15th Wettest
Wettest since:
2015
Apr–Jul 1981
4-Month
5.65"
(143.51mm)
4.99"
(126.75mm)
0.66"
(16.76mm)
103rd Driest
Driest since:
2002
26th Wettest
Wettest since:
1914
Mar–Jul 1981
5-Month
7.56"
(192.02mm)
6.14"
(155.96mm)
1.42"
(36.06mm)
112th Driest
Driest since:
2002
17th Wettest
Wettest since:
1941
Feb–Jul 1981
6-Month
8.06"
(204.72mm)
7.14"
(181.36mm)
0.92"
(23.36mm)
103rd Driest
Driest since:
2002
26th Wettest
Wettest since:
1941
Jan–Jul 1981
7-Month
8.58"
(217.93mm)
8.12"
(206.25mm)
0.46"
(11.68mm)
83rd Driest
Driest since:
2002
46th Wettest
Wettest since:
1905
Dec 1980–Jul 1981
8-Month
8.93"
(226.82mm)
9.13"
(231.90mm)
-0.20"
(-5.08mm)
64th Driest
Driest since:
2002
64th Wettest
Wettest since:
1941
Nov 1980–Jul 1981
9-Month
9.40"
(238.76mm)
10.02"
(254.51mm)
-0.62"
(-15.75mm)
58th Driest
Driest since:
2002
70th Wettest
Wettest since:
1941
Oct 1980–Jul 1981
10-Month
10.10"
(256.54mm)
11.15"
(283.21mm)
-1.05"
(-26.67mm)
46th Driest
Driest since:
2002
82nd Wettest
Wettest since:
1941
Ties: 1913
Sep 1980–Jul 1981
11-Month
11.79"
(299.47mm)
12.52"
(318.01mm)
-0.73"
(-18.54mm)
56th Driest
Driest since:
2002
72nd Wettest
Wettest since:
1941
Aug 1980–Jul 1981
12-Month
13.38"
(339.85mm)
14.53"
(369.06mm)
-1.15"
(-29.21mm)
46th Driest
Driest since:
2002
82nd Wettest
Wettest since:
1941
Feb 1980–Jul 1981
18-Month
21.26"
(540.00mm)
21.67"
(550.42mm)
-0.41"
(-10.42mm)
65th Driest
Driest since:
2002
63rd Wettest
Wettest since:
1942
Aug 1979–Jul 1981
24-Month
28.47"
(723.14mm)
29.06"
(738.12mm)
-0.59"
(-14.98mm)
63rd Driest
Driest since:
2003
64th Wettest
Wettest since:
1942
Aug 1978–Jul 1981
36-Month
46.18"
(1,172.97mm)
43.55"
(1,106.17mm)
2.63"
(66.80mm)
98th Driest
Driest since:
1956
28th Wettest
Wettest since:
1907
Aug 1977–Jul 1981
48-Month
61.62"
(1,565.15mm)
58.02"
(1,473.71mm)
3.60"
(91.44mm)
100th Driest
Driest since:
1956
25th Wettest
Wettest since:
1986
Aug 1976–Jul 1981
60-Month
73.07"
(1,855.98mm)
72.50"
(1,841.50mm)
0.57"
(14.48mm)
73rd Driest
Driest since:
1904
51st Wettest
Wettest since:
1987
Ties: 2008

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