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, August 1915

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
August 1915
1-Month
1.55"
(39.37mm)
2.02"
(51.31mm)
-0.47"
(-11.94mm)
31st Driest
Driest since:
1962
98th Wettest
Wettest since:
1963
Jul–Aug 1915
2-Month
3.81"
(96.77mm)
3.89"
(98.81mm)
-0.08"
(-2.04mm)
63rd Driest
Driest since:
2020
66th Wettest
Wettest since:
1921
Jun–Aug 1915
3-Month
4.64"
(117.86mm)
4.83"
(122.68mm)
-0.19"
(-4.82mm)
58th Driest
Driest since:
2020
71st Wettest
Wettest since:
1921
May–Aug 1915
4-Month
6.12"
(155.45mm)
5.94"
(150.88mm)
0.18"
(4.57mm)
77th Driest
Driest since:
2020
52nd Wettest
Wettest since:
1921
Ties: 1983
Apr–Aug 1915
5-Month
8.65"
(219.71mm)
7.00"
(177.80mm)
1.65"
(41.91mm)
120th Driest
Driest since:
2020
9th Wettest
Wettest since:
1999
Mar–Aug 1915
6-Month
9.57"
(243.08mm)
8.15"
(207.01mm)
1.42"
(36.07mm)
114th Driest
Driest since:
2002
15th Wettest
Wettest since:
1941
Feb–Aug 1915
7-Month
11.16"
(283.46mm)
9.16"
(232.66mm)
2.00"
(50.80mm)
119th Driest
Driest since:
2002
10th Wettest
Wettest since:
1941
Jan–Aug 1915
8-Month
12.58"
(319.53mm)
10.14"
(257.56mm)
2.44"
(61.97mm)
122nd Driest
Driest since:
2002
7th Wettest
Wettest since:
1941
Dec 1914–Aug 1915
9-Month
14.32"
(363.73mm)
11.15"
(283.21mm)
3.17"
(80.52mm)
124th Driest
Driest since:
2002
4th Wettest
Wettest since:
1941
Nov 1914–Aug 1915
10-Month
14.66"
(372.36mm)
12.04"
(305.82mm)
2.62"
(66.54mm)
117th Driest
Driest since:
2002
11th Wettest
Wettest since:
1941
Oct 1914–Aug 1915
11-Month
16.84"
(427.74mm)
13.17"
(334.52mm)
3.67"
(93.22mm)
123rd Driest
Driest since:
2002
5th Wettest
Wettest to Date
1941
Sep 1914–Aug 1915
12-Month
17.55"
(445.77mm)
14.54"
(369.32mm)
3.01"
(76.45mm)
115th Driest
Driest since:
2002
13th Wettest
Wettest since:
1941
Ties: 2015
Mar 1914–Aug 1915
18-Month
28.01"
(711.45mm)
22.69"
(576.33mm)
5.32"
(135.12mm)
123rd Driest
Driest since:
2002
5th Wettest
Wettest since:
1942
Sep 1913–Aug 1915
24-Month
35.57"
(903.48mm)
29.09"
(738.89mm)
6.48"
(164.59mm)
122nd Driest
Driest since:
2003
5th Wettest
Wettest since:
1942
Sep 1912–Aug 1915
36-Month
47.97"
(1,218.44mm)
43.58"
(1,106.93mm)
4.39"
(111.51mm)
108th Driest
Driest since:
1956
18th Wettest
Wettest since:
1907
Sep 1911–Aug 1915
48-Month
64.25"
(1,631.95mm)
58.05"
(1,474.47mm)
6.20"
(157.48mm)
111th Driest
Driest since:
1956
14th Wettest
Wettest since:
1986
Sep 1910–Aug 1915
60-Month
79.50"
(2,019.30mm)
72.53"
(1,842.26mm)
6.97"
(177.04mm)
109th Driest
Driest since:
2004
15th Wettest
Wettest since:
1987

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