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 1937

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
July 1937
1-Month
1.73"
(43.94mm)
1.87"
(47.50mm)
-0.14"
(-3.56mm)
51st Driest
Driest since:
2003
78th Wettest
Wettest since:
1914
Ties: 1945, 2009
Jun–Jul 1937
2-Month
2.89"
(73.41mm)
2.81"
(71.37mm)
0.08"
(2.04mm)
71st Driest
Driest since:
1980
58th Wettest
Wettest since:
1921
May–Jul 1937
3-Month
4.26"
(108.20mm)
3.93"
(99.82mm)
0.33"
(8.38mm)
96th Driest
Driest since:
2002
33rd Wettest
Wettest since:
2015
Apr–Jul 1937
4-Month
4.79"
(121.67mm)
4.99"
(126.75mm)
-0.20"
(-5.08mm)
60th Driest
Driest since:
2002
69th Wettest
Wettest since:
1914
Ties: 2016
Mar–Jul 1937
5-Month
6.34"
(161.04mm)
6.14"
(155.96mm)
0.20"
(5.08mm)
84th Driest
Driest since:
2002
45th Wettest
Wettest since:
1941
Ties: 1897
Feb–Jul 1937
6-Month
7.70"
(195.58mm)
7.14"
(181.36mm)
0.56"
(14.22mm)
95th Driest
Driest since:
2002
34th Wettest
Wettest since:
1941
Jan–Jul 1937
7-Month
8.75"
(222.25mm)
8.12"
(206.25mm)
0.63"
(16.00mm)
85th Driest
Driest since:
2002
44th Wettest
Wettest since:
1905
Dec 1936–Jul 1937
8-Month
10.14"
(257.56mm)
9.13"
(231.90mm)
1.01"
(25.66mm)
95th Driest
Driest since:
2002
33rd Wettest
Wettest since:
1941
Nov 1936–Jul 1937
9-Month
10.62"
(269.75mm)
10.02"
(254.51mm)
0.60"
(15.24mm)
86th Driest
Driest since:
2002
42nd Wettest
Wettest since:
1941
Oct 1936–Jul 1937
10-Month
11.65"
(295.91mm)
11.15"
(283.21mm)
0.50"
(12.70mm)
79th Driest
Driest since:
2002
49th Wettest
Wettest since:
1941
Sep 1936–Jul 1937
11-Month
13.38"
(339.85mm)
12.52"
(318.01mm)
0.86"
(21.84mm)
90th Driest
Driest since:
2002
38th Wettest
Wettest since:
1941
Aug 1936–Jul 1937
12-Month
15.46"
(392.68mm)
14.53"
(369.06mm)
0.93"
(23.62mm)
87th Driest
Driest since:
2002
41st Wettest
Wettest since:
1941
Feb 1936–Jul 1937
18-Month
22.40"
(568.96mm)
21.67"
(550.42mm)
0.73"
(18.54mm)
85th Driest
Driest since:
2002
43rd Wettest
Wettest since:
1942
Ties: 1930
Aug 1935–Jul 1937
24-Month
29.43"
(747.52mm)
29.06"
(738.12mm)
0.37"
(9.40mm)
78th Driest
Driest since:
2003
49th Wettest
Wettest since:
1942
Aug 1934–Jul 1937
36-Month
43.13"
(1,095.50mm)
43.55"
(1,106.17mm)
-0.42"
(-10.67mm)
59th Driest
Driest since:
1956
67th Wettest
Wettest since:
1907
Aug 1933–Jul 1937
48-Month
53.96"
(1,370.58mm)
58.02"
(1,473.71mm)
-4.06"
(-103.13mm)
29th Driest
Driest since:
1956
96th Wettest
Wettest since:
1986
Aug 1932–Jul 1937
60-Month
66.92"
(1,699.77mm)
72.50"
(1,841.50mm)
-5.58"
(-141.73mm)
22nd Driest
Driest since:
1904
102nd Wettest
Wettest since:
1987

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