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 1987

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 1987
1-Month
2.49"
(63.25mm)
2.02"
(51.31mm)
0.47"
(11.94mm)
102nd Driest
Driest since:
1962
27th Wettest
Wettest since:
1963
Jul–Aug 1987
2-Month
3.85"
(97.79mm)
3.89"
(98.81mm)
-0.04"
(-1.02mm)
64th Driest
Driest since:
2020
65th Wettest
Wettest since:
1921
Jun–Aug 1987
3-Month
4.93"
(125.22mm)
4.83"
(122.68mm)
0.10"
(2.54mm)
70th Driest
Driest since:
2020
59th Wettest
Wettest since:
1921
May–Aug 1987
4-Month
6.76"
(171.70mm)
5.94"
(150.88mm)
0.82"
(20.82mm)
104th Driest
Driest since:
2020
25th Wettest
Wettest since:
1921
Apr–Aug 1987
5-Month
7.30"
(185.42mm)
7.00"
(177.80mm)
0.30"
(7.62mm)
87th Driest
Driest since:
2020
42nd Wettest
Wettest since:
1999
Mar–Aug 1987
6-Month
8.37"
(212.60mm)
8.15"
(207.01mm)
0.22"
(5.59mm)
81st Driest
Driest since:
2002
48th Wettest
Wettest since:
1941
Feb–Aug 1987
7-Month
9.85"
(250.19mm)
9.16"
(232.66mm)
0.69"
(17.53mm)
95th Driest
Driest since:
2002
34th Wettest
Wettest since:
1941
Jan–Aug 1987
8-Month
10.86"
(275.84mm)
10.14"
(257.56mm)
0.72"
(18.28mm)
89th Driest
Driest since:
2002
40th Wettest
Wettest since:
1941
Ties: 1919
Dec 1986–Aug 1987
9-Month
11.91"
(302.51mm)
11.15"
(283.21mm)
0.76"
(19.30mm)
87th Driest
Driest since:
2002
41st Wettest
Wettest since:
1941
Nov 1986–Aug 1987
10-Month
13.53"
(343.66mm)
12.04"
(305.82mm)
1.49"
(37.84mm)
101st Driest
Driest since:
2002
27th Wettest
Wettest since:
1941
Oct 1986–Aug 1987
11-Month
15.31"
(388.87mm)
13.17"
(334.52mm)
2.14"
(54.35mm)
109th Driest
Driest since:
2002
19th Wettest
Wettest since:
1941
Sep 1986–Aug 1987
12-Month
17.11"
(434.59mm)
14.54"
(369.32mm)
2.57"
(65.27mm)
109th Driest
Driest since:
2002
19th Wettest
Wettest since:
1941
Mar 1986–Aug 1987
18-Month
26.66"
(677.16mm)
22.69"
(576.33mm)
3.97"
(100.83mm)
116th Driest
Driest since:
2002
12th Wettest
Wettest since:
1942
Sep 1985–Aug 1987
24-Month
34.86"
(885.44mm)
29.09"
(738.89mm)
5.77"
(146.55mm)
119th Driest
Driest since:
2003
8th Wettest
Wettest since:
1942
Sep 1984–Aug 1987
36-Month
51.64"
(1,311.66mm)
43.58"
(1,106.93mm)
8.06"
(204.73mm)
120th Driest
Driest since:
1956
6th Wettest
Wettest since:
1907
Sep 1983–Aug 1987
48-Month
69.42"
(1,763.27mm)
58.05"
(1,474.47mm)
11.37"
(288.80mm)
123rd Driest
Driest since:
1956
2nd Wettest
Wettest since:
1986
Sep 1982–Aug 1987
60-Month
87.48"
(2,221.99mm)
72.53"
(1,842.26mm)
14.95"
(379.73mm)
123rd Driest
Driest since:
2004
1st Wettest
Wettest to Date
1987

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