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 1921

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 1921
1-Month
2.87"
(72.90mm)
2.02"
(51.31mm)
0.85"
(21.59mm)
123rd Driest
Driest since:
1962
6th Wettest
Wettest since:
1963
Jul–Aug 1921
2-Month
5.99"
(152.15mm)
3.89"
(98.81mm)
2.10"
(53.34mm)
128th Driest
Driest since:
2020
1st Wettest
Wettest to Date
1921
Jun–Aug 1921
3-Month
7.72"
(196.09mm)
4.83"
(122.68mm)
2.89"
(73.41mm)
128th Driest
Driest since:
2020
1st Wettest
Wettest to Date
1921
May–Aug 1921
4-Month
9.10"
(231.14mm)
5.94"
(150.88mm)
3.16"
(80.26mm)
128th Driest
Driest since:
2020
1st Wettest
Wettest to Date
1921
Apr–Aug 1921
5-Month
10.19"
(258.83mm)
7.00"
(177.80mm)
3.19"
(81.03mm)
127th Driest
Driest since:
2020
2nd Wettest
Wettest to Date
1999
Mar–Aug 1921
6-Month
11.05"
(280.67mm)
8.15"
(207.01mm)
2.90"
(73.66mm)
126th Driest
Driest since:
2002
3rd Wettest
Wettest to Date
1941
Feb–Aug 1921
7-Month
11.61"
(294.89mm)
9.16"
(232.66mm)
2.45"
(62.23mm)
125th Driest
Driest since:
2002
4th Wettest
Wettest since:
1941
Jan–Aug 1921
8-Month
12.61"
(320.29mm)
10.14"
(257.56mm)
2.47"
(62.73mm)
123rd Driest
Driest since:
2002
6th Wettest
Wettest since:
1941
Dec 1920–Aug 1921
9-Month
13.20"
(335.28mm)
11.15"
(283.21mm)
2.05"
(52.07mm)
114th Driest
Driest since:
2002
14th Wettest
Wettest since:
1941
Nov 1920–Aug 1921
10-Month
13.70"
(347.98mm)
12.04"
(305.82mm)
1.66"
(42.16mm)
106th Driest
Driest since:
2002
22nd Wettest
Wettest since:
1941
Oct 1920–Aug 1921
11-Month
15.50"
(393.70mm)
13.17"
(334.52mm)
2.33"
(59.18mm)
111th Driest
Driest since:
2002
17th Wettest
Wettest since:
1941
Ties: 1985
Sep 1920–Aug 1921
12-Month
16.52"
(419.61mm)
14.54"
(369.32mm)
1.98"
(50.29mm)
104th Driest
Driest since:
2002
24th Wettest
Wettest since:
1941
Mar 1920–Aug 1921
18-Month
25.02"
(635.51mm)
22.69"
(576.33mm)
2.33"
(59.18mm)
103rd Driest
Driest since:
2002
25th Wettest
Wettest since:
1942
Sep 1919–Aug 1921
24-Month
33.84"
(859.54mm)
29.09"
(738.89mm)
4.75"
(120.65mm)
115th Driest
Driest since:
2003
12th Wettest
Wettest since:
1942
Sep 1918–Aug 1921
36-Month
49.91"
(1,267.71mm)
43.58"
(1,106.93mm)
6.33"
(160.78mm)
113th Driest
Driest since:
1956
13th Wettest
Wettest since:
1907
Sep 1917–Aug 1921
48-Month
62.20"
(1,579.88mm)
58.05"
(1,474.47mm)
4.15"
(105.41mm)
102nd Driest
Driest since:
1956
23rd Wettest
Wettest since:
1986
Sep 1916–Aug 1921
60-Month
76.79"
(1,950.47mm)
72.53"
(1,842.26mm)
4.26"
(108.21mm)
98th Driest
Driest since:
2004
26th Wettest
Wettest since:
1987

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