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 2004

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 2004
1-Month
1.68"
(42.67mm)
2.02"
(51.31mm)
-0.34"
(-8.64mm)
39th Driest
Driest since:
1962
90th Wettest
Wettest since:
1963
Jul–Aug 2004
2-Month
3.40"
(86.36mm)
3.89"
(98.81mm)
-0.49"
(-12.45mm)
41st Driest
Driest since:
2020
88th Wettest
Wettest since:
1921
Jun–Aug 2004
3-Month
4.39"
(111.51mm)
4.83"
(122.68mm)
-0.44"
(-11.17mm)
47th Driest
Driest since:
2020
82nd Wettest
Wettest since:
1921
Ties: 2016
May–Aug 2004
4-Month
4.74"
(120.40mm)
5.94"
(150.88mm)
-1.20"
(-30.48mm)
17th Driest
Driest since:
2020
112th Wettest
Wettest since:
1921
Apr–Aug 2004
5-Month
6.98"
(177.29mm)
7.00"
(177.80mm)
-0.02"
(-0.51mm)
69th Driest
Driest since:
2020
60th Wettest
Wettest since:
1999
Mar–Aug 2004
6-Month
7.65"
(194.31mm)
8.15"
(207.01mm)
-0.50"
(-12.70mm)
46th Driest
Driest since:
2002
83rd Wettest
Wettest since:
1941
Feb–Aug 2004
7-Month
8.93"
(226.82mm)
9.16"
(232.66mm)
-0.23"
(-5.84mm)
64th Driest
Driest since:
2002
65th Wettest
Wettest since:
1941
Jan–Aug 2004
8-Month
9.60"
(243.84mm)
10.14"
(257.56mm)
-0.54"
(-13.72mm)
57th Driest
Driest since:
2002
72nd Wettest
Wettest since:
1941
Dec 2003–Aug 2004
9-Month
10.38"
(263.65mm)
11.15"
(283.21mm)
-0.77"
(-19.56mm)
51st Driest
Driest since:
2002
77th Wettest
Wettest since:
1941
Ties: 2022
Nov 2003–Aug 2004
10-Month
11.53"
(292.86mm)
12.04"
(305.82mm)
-0.51"
(-12.96mm)
62nd Driest
Driest since:
2002
66th Wettest
Wettest since:
1941
Oct 2003–Aug 2004
11-Month
12.11"
(307.59mm)
13.17"
(334.52mm)
-1.06"
(-26.93mm)
52nd Driest
Driest since:
2002
76th Wettest
Wettest since:
1941
Sep 2003–Aug 2004
12-Month
13.16"
(334.26mm)
14.54"
(369.32mm)
-1.38"
(-35.06mm)
42nd Driest
Driest since:
2002
86th Wettest
Wettest since:
1941
Mar 2003–Aug 2004
18-Month
19.46"
(494.28mm)
22.69"
(576.33mm)
-3.23"
(-82.05mm)
22nd Driest
Driest since:
2002
106th Wettest
Wettest since:
1942
Sep 2002–Aug 2004
24-Month
26.51"
(673.35mm)
29.09"
(738.89mm)
-2.58"
(-65.54mm)
31st Driest
Driest since:
2003
96th Wettest
Wettest since:
1942
Sep 2001–Aug 2004
36-Month
34.28"
(870.71mm)
43.58"
(1,106.93mm)
-9.30"
(-236.22mm)
3rd Driest
Driest since:
1956
123rd Wettest
Wettest since:
1907
Sep 2000–Aug 2004
48-Month
49.16"
(1,248.66mm)
58.05"
(1,474.47mm)
-8.89"
(-225.81mm)
7th Driest
Driest since:
1956
118th Wettest
Wettest since:
1986
Sep 1999–Aug 2004
60-Month
60.16"
(1,528.06mm)
72.53"
(1,842.26mm)
-12.37"
(-314.20mm)
1st Driest
Driest since:
2004
123rd Wettest
Wettest since:
1987

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