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 2020

View Period (Months):
Download: csv json xml
  • Record Driest
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Wettest/Driest
Since
Record
September 2020
1-Month
6.00"
(152.40mm)
3.78"
(96.01mm)
2.22"
(56.39mm)
112th Driest
Driest since:
2019
17th Wettest
Wettest since:
1988
Aug–Sep 2020
2-Month
11.78"
(299.21mm)
8.12"
(206.25mm)
3.66"
(92.96mm)
119th Driest
Driest since:
1954
10th Wettest
Wettest since:
1939
Jul–Sep 2020
3-Month
17.08"
(433.83mm)
13.57"
(344.68mm)
3.51"
(89.15mm)
111th Driest
Driest since:
1954
18th Wettest
Wettest since:
1916
Jun–Sep 2020
4-Month
22.24"
(564.90mm)
17.84"
(453.14mm)
4.40"
(111.76mm)
113th Driest
Driest since:
1954
16th Wettest
Wettest since:
2021
May–Sep 2020
5-Month
25.88"
(657.35mm)
22.09"
(561.09mm)
3.79"
(96.26mm)
106th Driest
Driest since:
1954
23rd Wettest
Wettest since:
2003
Apr–Sep 2020
6-Month
32.98"
(837.69mm)
26.89"
(683.01mm)
6.09"
(154.68mm)
111th Driest
Driest since:
1954
18th Wettest
Wettest since:
2003
Mar–Sep 2020
7-Month
39.16"
(994.66mm)
33.05"
(839.47mm)
6.11"
(155.19mm)
106th Driest
Driest since:
1954
23rd Wettest
Wettest since:
2021
Feb–Sep 2020
8-Month
49.53"
(1,258.06mm)
38.23"
(971.04mm)
11.30"
(287.02mm)
122nd Driest
Driest since:
1954
7th Wettest
Wettest since:
1975
Jan–Sep 2020
9-Month
56.97"
(1,447.04mm)
43.41"
(1,102.61mm)
13.56"
(344.43mm)
126th Driest
Driest since:
1954
3rd Wettest
Wettest since:
1975
Dec 2019–Sep 2020
10-Month
63.57"
(1,614.68mm)
48.58"
(1,233.93mm)
14.99"
(380.75mm)
126th Driest
Driest since:
2007
2nd Wettest
Wettest since:
1975
Nov 2019–Sep 2020
11-Month
66.81"
(1,696.97mm)
52.38"
(1,330.45mm)
14.43"
(366.52mm)
124th Driest
Driest since:
2000
4th Wettest
Wettest since:
1975
Oct 2019–Sep 2020
12-Month
73.93"
(1,877.82mm)
55.27"
(1,403.86mm)
18.66"
(473.96mm)
127th Driest
Driest since:
2000
1st Wettest
Wettest to Date
2020
Apr 2019–Sep 2020
18-Month
97.65"
(2,480.31mm)
82.32"
(2,090.93mm)
15.33"
(389.38mm)
122nd Driest
Driest since:
2007
6th Wettest
Wettest since:
1975
Oct 2018–Sep 2020
24-Month
132.20"
(3,357.88mm)
110.77"
(2,813.56mm)
21.43"
(544.32mm)
122nd Driest
Driest since:
2007
5th Wettest
Wettest since:
2021
Oct 2017–Sep 2020
36-Month
188.64"
(4,791.46mm)
166.30"
(4,224.02mm)
22.34"
(567.44mm)
119th Driest
Driest since:
2008
7th Wettest
Wettest since:
1975
Oct 2016–Sep 2020
48-Month
249.34"
(6,333.24mm)
221.61"
(5,628.89mm)
27.73"
(704.35mm)
119th Driest
Driest since:
1899
6th Wettest
Wettest since:
1976
Oct 2015–Sep 2020
60-Month
308.47"
(7,835.14mm)
276.82"
(7,031.23mm)
31.65"
(803.91mm)
116th Driest
Driest since:
1955
8th Wettest
Wettest since:
1977

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