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, August 2020

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 2020
1-Month
5.78"
(146.81mm)
4.34"
(110.24mm)
1.44"
(36.57mm)
102nd Driest
Driest since:
1925
27th Wettest
Wettest since:
1939
Jul–Aug 2020
2-Month
11.08"
(281.43mm)
9.79"
(248.67mm)
1.29"
(32.76mm)
87th Driest
Driest since:
2000
42nd Wettest
Wettest since:
1916
Ties: 2009
Jun–Aug 2020
3-Month
16.24"
(412.50mm)
14.07"
(357.38mm)
2.17"
(55.12mm)
97th Driest
Driest since:
1902
32nd Wettest
Wettest since:
1916
May–Aug 2020
4-Month
19.88"
(504.95mm)
18.31"
(465.07mm)
1.57"
(39.88mm)
82nd Driest
Driest since:
2000
47th Wettest
Wettest since:
2003
Apr–Aug 2020
5-Month
26.98"
(685.29mm)
23.11"
(586.99mm)
3.87"
(98.30mm)
104th Driest
Driest since:
1902
25th Wettest
Wettest since:
2003
Mar–Aug 2020
6-Month
33.16"
(842.26mm)
29.28"
(743.71mm)
3.88"
(98.55mm)
98th Driest
Driest since:
1925
31st Wettest
Wettest since:
2021
Feb–Aug 2020
7-Month
43.53"
(1,105.66mm)
34.46"
(875.28mm)
9.07"
(230.38mm)
116th Driest
Driest since:
2007
13th Wettest
Wettest since:
2003
Jan–Aug 2020
8-Month
50.97"
(1,294.64mm)
39.64"
(1,006.86mm)
11.33"
(287.78mm)
126th Driest
Driest since:
2007
3rd Wettest
Wettest since:
1975
Dec 2019–Aug 2020
9-Month
57.57"
(1,462.28mm)
44.80"
(1,137.92mm)
12.77"
(324.36mm)
124th Driest
Driest since:
2007
4th Wettest
Wettest since:
1975
Nov 2019–Aug 2020
10-Month
60.81"
(1,544.57mm)
48.61"
(1,234.69mm)
12.20"
(309.88mm)
121st Driest
Driest since:
2000
7th Wettest
Wettest since:
1949
Oct 2019–Aug 2020
11-Month
67.93"
(1,725.42mm)
51.49"
(1,307.85mm)
16.44"
(417.57mm)
127th Driest
Driest since:
2000
1st Wettest
Wettest to Date
2020
Sep 2019–Aug 2020
12-Month
68.34"
(1,735.84mm)
55.27"
(1,403.86mm)
13.07"
(331.98mm)
120th Driest
Driest since:
2000
8th Wettest
Wettest since:
2003
Mar 2019–Aug 2020
18-Month
95.05"
(2,414.27mm)
84.71"
(2,151.63mm)
10.34"
(262.64mm)
110th Driest
Driest since:
2007
18th Wettest
Wettest since:
1949
Sep 2018–Aug 2020
24-Month
132.41"
(3,363.21mm)
110.77"
(2,813.56mm)
21.64"
(549.65mm)
124th Driest
Driest since:
2007
3rd Wettest
Wettest since:
1920
Sep 2017–Aug 2020
36-Month
185.89"
(4,721.61mm)
166.25"
(4,222.75mm)
19.64"
(498.86mm)
115th Driest
Driest since:
2008
11th Wettest
Wettest since:
1975
Sep 2016–Aug 2020
48-Month
245.06"
(6,224.52mm)
221.53"
(5,626.86mm)
23.53"
(597.66mm)
118th Driest
Driest since:
1899
7th Wettest
Wettest since:
1976
Sep 2015–Aug 2020
60-Month
305.18"
(7,751.57mm)
276.69"
(7,027.93mm)
28.49"
(723.64mm)
115th Driest
Driest since:
1955
9th Wettest
Wettest since:
1977

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