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 1899

View Period (Months):
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Wettest/Driest
Since
Record
July 1899
1-Month
2.44"
(61.98mm)
1.87"
(47.50mm)
0.57"
(14.48mm)
111th Driest
Driest since:
2003
18th Wettest
Wettest since:
1914
Jun–Jul 1899
2-Month
3.43"
(87.12mm)
2.81"
(71.37mm)
0.62"
(15.75mm)
107th Driest
Driest since:
1980
22nd Wettest
Wettest since:
1921
May–Jul 1899
3-Month
3.79"
(96.27mm)
3.93"
(99.82mm)
-0.14"
(-3.55mm)
58th Driest
Driest since:
2002
71st Wettest
Wettest since:
2015
Ties: 1896
Apr–Jul 1899
4-Month
4.28"
(108.71mm)
4.99"
(126.75mm)
-0.71"
(-18.04mm)
33rd Driest
Driest since:
2002
96th Wettest
Wettest since:
1914
Ties: 1959, 2005, 2006
Mar–Jul 1899
5-Month
5.27"
(133.86mm)
6.14"
(155.96mm)
-0.87"
(-22.10mm)
29th Driest
Driest since:
2002
100th Wettest
Wettest since:
1941
Ties: 1901, 2022
Feb–Jul 1899
6-Month
6.22"
(157.99mm)
7.14"
(181.36mm)
-0.92"
(-23.37mm)
39th Driest
Driest since:
2002
90th Wettest
Wettest since:
1941
Jan–Jul 1899
7-Month
6.98"
(177.29mm)
8.12"
(206.25mm)
-1.14"
(-28.96mm)
38th Driest
Driest since:
2002
91st Wettest
Wettest since:
1905
Ties: 1977
Dec 1898–Jul 1899
8-Month
8.17"
(207.52mm)
9.13"
(231.90mm)
-0.96"
(-24.38mm)
44th Driest
Driest since:
2002
84th Wettest
Wettest since:
1941
Nov 1898–Jul 1899
9-Month
8.95"
(227.33mm)
10.02"
(254.51mm)
-1.07"
(-27.18mm)
45th Driest
Driest since:
2002
83rd Wettest
Wettest since:
1941
Oct 1898–Jul 1899
10-Month
9.34"
(237.24mm)
11.15"
(283.21mm)
-1.81"
(-45.97mm)
32nd Driest
Driest since:
2002
96th Wettest
Wettest since:
1941
Sep 1898–Jul 1899
11-Month
9.84"
(249.94mm)
12.52"
(318.01mm)
-2.68"
(-68.07mm)
13th Driest
Driest since:
2002
115th Wettest
Wettest since:
1941
Aug 1898–Jul 1899
12-Month
11.67"
(296.42mm)
14.53"
(369.06mm)
-2.86"
(-72.64mm)
17th Driest
Driest since:
2002
111th Wettest
Wettest since:
1941
Feb 1898–Jul 1899
18-Month
19.29"
(489.97mm)
21.67"
(550.42mm)
-2.38"
(-60.45mm)
34th Driest
Driest since:
2002
94th Wettest
Wettest since:
1942
Aug 1897–Jul 1899
24-Month
27.62"
(701.55mm)
29.06"
(738.12mm)
-1.44"
(-36.57mm)
45th Driest
Driest since:
2003
82nd Wettest
Wettest since:
1942
Aug 1896–Jul 1899
36-Month
43.96"
(1,116.58mm)
43.55"
(1,106.17mm)
0.41"
(10.41mm)
75th Driest
Driest since:
1956
51st Wettest
Wettest since:
1907
Aug 1895–Jul 1899
48-Month
56.39"
(1,432.31mm)
58.02"
(1,473.71mm)
-1.63"
(-41.40mm)
51st Driest
Driest since:
1956
74th Wettest
Wettest to Date
1986

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