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 1917

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 1917
1-Month
1.56"
(39.62mm)
2.02"
(51.31mm)
-0.46"
(-11.69mm)
32nd Driest
Driest since:
1962
97th Wettest
Wettest since:
1963
Jul–Aug 1917
2-Month
3.41"
(86.61mm)
3.89"
(98.81mm)
-0.48"
(-12.20mm)
42nd Driest
Driest since:
2020
87th Wettest
Wettest since:
1921
Jun–Aug 1917
3-Month
3.66"
(92.96mm)
4.83"
(122.68mm)
-1.17"
(-29.72mm)
15th Driest
Driest since:
2020
114th Wettest
Wettest since:
1921
May–Aug 1917
4-Month
5.59"
(141.99mm)
5.94"
(150.88mm)
-0.35"
(-8.89mm)
53rd Driest
Driest since:
2020
76th Wettest
Wettest since:
1921
Ties: 2016
Apr–Aug 1917
5-Month
7.04"
(178.82mm)
7.00"
(177.80mm)
0.04"
(1.02mm)
73rd Driest
Driest since:
2020
56th Wettest
Wettest since:
1999
Ties: 2006
Mar–Aug 1917
6-Month
7.55"
(191.77mm)
8.15"
(207.01mm)
-0.60"
(-15.24mm)
43rd Driest
Driest since:
2002
86th Wettest
Wettest since:
1941
Feb–Aug 1917
7-Month
8.36"
(212.34mm)
9.16"
(232.66mm)
-0.80"
(-20.32mm)
42nd Driest
Driest since:
2002
87th Wettest
Wettest since:
1941
Jan–Aug 1917
8-Month
9.72"
(246.89mm)
10.14"
(257.56mm)
-0.42"
(-10.67mm)
61st Driest
Driest since:
2002
68th Wettest
Wettest since:
1941
Ties: 1955
Dec 1916–Aug 1917
9-Month
10.65"
(270.51mm)
11.15"
(283.21mm)
-0.50"
(-12.70mm)
63rd Driest
Driest since:
2002
65th Wettest
Wettest since:
1941
Nov 1916–Aug 1917
10-Month
10.95"
(278.13mm)
12.04"
(305.82mm)
-1.09"
(-27.69mm)
53rd Driest
Driest since:
2002
75th Wettest
Wettest since:
1941
Oct 1916–Aug 1917
11-Month
13.59"
(345.19mm)
13.17"
(334.52mm)
0.42"
(10.67mm)
77th Driest
Driest since:
2002
51st Wettest
Wettest since:
1941
Sep 1916–Aug 1917
12-Month
14.59"
(370.59mm)
14.54"
(369.32mm)
0.05"
(1.27mm)
71st Driest
Driest since:
2002
57th Wettest
Wettest since:
1941
Ties: 1980
Mar 1916–Aug 1917
18-Month
22.61"
(574.29mm)
22.69"
(576.33mm)
-0.08"
(-2.04mm)
76th Driest
Driest since:
2002
52nd Wettest
Wettest since:
1942
Sep 1915–Aug 1917
24-Month
30.45"
(773.43mm)
29.09"
(738.89mm)
1.36"
(34.54mm)
93rd Driest
Driest since:
2003
34th Wettest
Wettest since:
1942
Sep 1914–Aug 1917
36-Month
48.00"
(1,219.20mm)
43.58"
(1,106.93mm)
4.42"
(112.27mm)
109th Driest
Driest since:
1956
17th Wettest
Wettest since:
1907
Sep 1913–Aug 1917
48-Month
66.02"
(1,676.91mm)
58.05"
(1,474.47mm)
7.97"
(202.44mm)
115th Driest
Driest since:
1956
10th Wettest
Wettest since:
1986
Sep 1912–Aug 1917
60-Month
78.42"
(1,991.87mm)
72.53"
(1,842.26mm)
5.89"
(149.61mm)
104th Driest
Driest since:
2004
20th Wettest
Wettest since:
1987

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