Regional Rankings

Regional Data Info
Please note, Palmer Indices are not available for NWS Regions. Degree Days are not available for Great Plains, Souther Plains and Gulf Coast Rockies and Westward, River Basins, or Agricultural Belts. 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, September 1927

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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Wettest/Driest
Since
Record
September 1927
1-Month
2.56"
(65.02mm)
1.36"
(34.54mm)
1.20"
(30.48mm)
125th Driest
Driest since:
1953, 1956
4th Wettest
Wettest to Date
2013
Aug–Sep 1927
2-Month
4.93"
(125.22mm)
3.38"
(85.85mm)
1.55"
(39.37mm)
124th Driest
Driest since:
2020
5th Wettest
Wettest to Date
2013
Jul–Sep 1927
3-Month
7.00"
(177.80mm)
5.25"
(133.35mm)
1.75"
(44.45mm)
122nd Driest
Driest since:
2020
7th Wettest
Wettest to Date
2013
Jun–Sep 1927
4-Month
8.82"
(224.03mm)
6.19"
(157.23mm)
2.63"
(66.80mm)
128th Driest
Driest since:
2020
1st Wettest
Wettest to Date
1927
May–Sep 1927
5-Month
9.17"
(232.92mm)
7.30"
(185.42mm)
1.87"
(47.50mm)
121st Driest
Driest since:
2020
8th Wettest
Wettest since:
1941
Apr–Sep 1927
6-Month
9.99"
(253.75mm)
8.36"
(212.34mm)
1.63"
(41.41mm)
114th Driest
Driest since:
2020
15th Wettest
Wettest since:
1941
Mar–Sep 1927
7-Month
11.38"
(289.05mm)
9.51"
(241.55mm)
1.87"
(47.50mm)
119th Driest
Driest since:
1956
10th Wettest
Wettest since:
1941
Feb–Sep 1927
8-Month
13.25"
(336.55mm)
10.52"
(267.21mm)
2.73"
(69.34mm)
126th Driest
Driest since:
1956
3rd Wettest
Wettest since:
1941
Jan–Sep 1927
9-Month
13.77"
(349.76mm)
11.50"
(292.10mm)
2.27"
(57.66mm)
121st Driest
Driest since:
1956
8th Wettest
Wettest since:
1941
Dec 1926–Sep 1927
10-Month
15.55"
(394.97mm)
12.51"
(317.75mm)
3.04"
(77.22mm)
124th Driest
Driest since:
1956
4th Wettest
Wettest since:
1941
Nov 1926–Sep 1927
11-Month
16.17"
(410.72mm)
13.40"
(340.36mm)
2.77"
(70.36mm)
117th Driest
Driest since:
1956
11th Wettest
Wettest since:
1941
Ties: 1993
Oct 1926–Sep 1927
12-Month
17.04"
(432.82mm)
14.53"
(369.06mm)
2.51"
(63.76mm)
109th Driest
Driest since:
1956
19th Wettest
Wettest since:
1941
Apr 1926–Sep 1927
18-Month
26.39"
(670.31mm)
22.92"
(582.17mm)
3.47"
(88.14mm)
116th Driest
Driest since:
2021
12th Wettest
Wettest since:
1941
Ties: 1986
Oct 1925–Sep 1927
24-Month
32.43"
(823.72mm)
29.08"
(738.63mm)
3.35"
(85.09mm)
110th Driest
Driest since:
1956
17th Wettest
Wettest since:
1942
Oct 1924–Sep 1927
36-Month
46.14"
(1,171.96mm)
43.57"
(1,106.68mm)
2.57"
(65.28mm)
99th Driest
Driest since:
1956
27th Wettest
Wettest since:
1907
Oct 1923–Sep 1927
48-Month
58.80"
(1,493.52mm)
58.05"
(1,474.47mm)
0.75"
(19.05mm)
78th Driest
Driest since:
1956
47th Wettest
Wettest since:
1986
Oct 1922–Sep 1927
60-Month
74.23"
(1,885.44mm)
72.53"
(1,842.26mm)
1.70"
(43.18mm)
83rd Driest
Driest since:
1957
41st Wettest
Wettest since:
1986

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