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 1900

View Period (Months):
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Wettest/Driest
Since
Record
July 1900
1-Month
1.00"
(25.40mm)
1.87"
(47.50mm)
-0.87"
(-22.10mm)
4th Driest
Driest since:
2003
125th Wettest
Wettest since:
1914
Jun–Jul 1900
2-Month
1.76"
(44.70mm)
2.81"
(71.37mm)
-1.05"
(-26.67mm)
5th Driest
Driest since:
1980
124th Wettest
Wettest since:
1921
May–Jul 1900
3-Month
2.70"
(68.58mm)
3.93"
(99.82mm)
-1.23"
(-31.24mm)
9th Driest
Driest since:
2002
120th Wettest
Wettest since:
2015
Apr–Jul 1900
4-Month
5.53"
(140.46mm)
4.99"
(126.75mm)
0.54"
(13.71mm)
100th Driest
Driest since:
2002
29th Wettest
Wettest since:
1914
Mar–Jul 1900
5-Month
6.06"
(153.92mm)
6.14"
(155.96mm)
-0.08"
(-2.04mm)
72nd Driest
Driest since:
2002
57th Wettest
Wettest since:
1941
Ties: 1918
Feb–Jul 1900
6-Month
6.62"
(168.15mm)
7.14"
(181.36mm)
-0.52"
(-13.21mm)
53rd Driest
Driest since:
2002
76th Wettest
Wettest since:
1941
Jan–Jul 1900
7-Month
7.01"
(178.05mm)
8.12"
(206.25mm)
-1.11"
(-28.20mm)
40th Driest
Driest since:
2002
89th Wettest
Wettest since:
1905
Dec 1899–Jul 1900
8-Month
7.82"
(198.63mm)
9.13"
(231.90mm)
-1.31"
(-33.27mm)
34th Driest
Driest since:
2002
94th Wettest
Wettest since:
1941
Ties: 1996
Nov 1899–Jul 1900
9-Month
8.65"
(219.71mm)
10.02"
(254.51mm)
-1.37"
(-34.80mm)
34th Driest
Driest since:
2002
94th Wettest
Wettest since:
1941
Oct 1899–Jul 1900
10-Month
9.71"
(246.63mm)
11.15"
(283.21mm)
-1.44"
(-36.58mm)
38th Driest
Driest since:
2002
90th Wettest
Wettest since:
1941
Ties: 1933
Sep 1899–Jul 1900
11-Month
10.63"
(270.00mm)
12.52"
(318.01mm)
-1.89"
(-48.01mm)
33rd Driest
Driest since:
2002
95th Wettest
Wettest since:
1941
Aug 1899–Jul 1900
12-Month
12.08"
(306.83mm)
14.53"
(369.06mm)
-2.45"
(-62.23mm)
24th Driest
Driest since:
2002
104th Wettest
Wettest since:
1941
Feb 1899–Jul 1900
18-Month
18.30"
(464.82mm)
21.67"
(550.42mm)
-3.37"
(-85.60mm)
22nd Driest
Driest since:
2002
106th Wettest
Wettest since:
1942
Aug 1898–Jul 1900
24-Month
23.75"
(603.25mm)
29.06"
(738.12mm)
-5.31"
(-134.87mm)
12th Driest
Driest since:
2003
115th Wettest
Wettest since:
1942
Aug 1897–Jul 1900
36-Month
39.70"
(1,008.38mm)
43.55"
(1,106.17mm)
-3.85"
(-97.79mm)
32nd Driest
Driest since:
1956
94th Wettest
Wettest since:
1907
Aug 1896–Jul 1900
48-Month
56.04"
(1,423.42mm)
58.02"
(1,473.71mm)
-1.98"
(-50.29mm)
49th Driest
Driest since:
1956
76th Wettest
Wettest since:
1986
Aug 1895–Jul 1900
60-Month
68.47"
(1,739.14mm)
72.50"
(1,841.50mm)
-4.03"
(-102.36mm)
34th Driest
Driest since:
1904
90th Wettest
Wettest to Date
1987
Ties: 1977

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