Statewide Rankings

Statewide Data Info
Please note, Degree Days and Palmer Indices are not available for Alaska. Palmer Drought Severity Index (PDSI), Palmer Hydrological Drought Index (PHDI), and Palmer Modified Drought Index (PMDI) are not offered for multiple-month time scales.

Alabama

Precipitation Rankings, September 1939

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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Wettest/Driest
Since
Record
September 1939
1-Month
3.88"
(98.55mm)
3.78"
(96.01mm)
0.10"
(2.54mm)
77th Driest
Driest since:
2019
52nd Wettest
Wettest since:
1988
Aug–Sep 1939
2-Month
14.19"
(360.43mm)
8.12"
(206.25mm)
6.07"
(154.18mm)
128th Driest
Driest since:
1954
1st Wettest
Wettest to Date
1939
Jul–Sep 1939
3-Month
19.16"
(486.66mm)
13.57"
(344.68mm)
5.59"
(141.98mm)
122nd Driest
Driest since:
1954
7th Wettest
Wettest since:
1916
Jun–Sep 1939
4-Month
25.86"
(656.84mm)
17.84"
(453.14mm)
8.02"
(203.70mm)
125th Driest
Driest since:
1954
4th Wettest
Wettest since:
2021
May–Sep 1939
5-Month
31.53"
(800.86mm)
22.09"
(561.09mm)
9.44"
(239.77mm)
125th Driest
Driest since:
1954
4th Wettest
Wettest to Date
2003
Apr–Sep 1939
6-Month
35.02"
(889.51mm)
26.89"
(683.01mm)
8.13"
(206.50mm)
121st Driest
Driest since:
1954
8th Wettest
Wettest since:
2003
Mar–Sep 1939
7-Month
40.03"
(1,016.76mm)
33.05"
(839.47mm)
6.98"
(177.29mm)
109th Driest
Driest since:
1954
20th Wettest
Wettest since:
2021
Feb–Sep 1939
8-Month
50.14"
(1,273.56mm)
38.23"
(971.04mm)
11.91"
(302.52mm)
123rd Driest
Driest since:
1954
6th Wettest
Wettest since:
1975
Jan–Sep 1939
9-Month
54.92"
(1,394.97mm)
43.41"
(1,102.61mm)
11.51"
(292.36mm)
122nd Driest
Driest since:
1954
7th Wettest
Wettest since:
1975
Dec 1938–Sep 1939
10-Month
57.71"
(1,465.83mm)
48.58"
(1,233.93mm)
9.13"
(231.90mm)
112th Driest
Driest since:
2007
16th Wettest
Wettest since:
1975
Nov 1938–Sep 1939
11-Month
61.09"
(1,551.69mm)
52.38"
(1,330.45mm)
8.71"
(221.24mm)
112th Driest
Driest since:
2000
16th Wettest
Wettest since:
1975
Oct 1938–Sep 1939
12-Month
61.47"
(1,561.34mm)
55.27"
(1,403.86mm)
6.20"
(157.48mm)
102nd Driest
Driest since:
2000
26th Wettest
Wettest since:
2020
Apr 1938–Sep 1939
18-Month
91.75"
(2,330.45mm)
82.32"
(2,090.93mm)
9.43"
(239.52mm)
103rd Driest
Driest since:
2007
25th Wettest
Wettest since:
1975
Oct 1937–Sep 1939
24-Month
115.57"
(2,935.48mm)
110.77"
(2,813.56mm)
4.80"
(121.92mm)
83rd Driest
Driest since:
2007
44th Wettest
Wettest since:
2021
Oct 1936–Sep 1939
36-Month
173.70"
(4,411.98mm)
166.30"
(4,224.02mm)
7.40"
(187.96mm)
91st Driest
Driest since:
2008
35th Wettest
Wettest since:
1975
Oct 1935–Sep 1939
48-Month
231.07"
(5,869.18mm)
221.61"
(5,628.89mm)
9.46"
(240.29mm)
90th Driest
Driest since:
1899
35th Wettest
Wettest since:
1976
Oct 1934–Sep 1939
60-Month
284.38"
(7,223.25mm)
276.82"
(7,031.23mm)
7.56"
(192.02mm)
85th Driest
Driest since:
1955
39th Wettest
Wettest since:
1977

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