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 2021

View Period (Months):
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  • Record Wettest
Period Value 1901-2000
Mean		 Anomaly Rank
(1895-2022)		 Wettest/Driest
Since		 Record
August 2021
1-Month 		7.43"
(188.72mm)		 4.34"
(110.24mm)		 3.09"
(78.48mm)		 125th Driest
Driest since:
 1925
4th Wettest
Wettest since:
 1939
Jul–Aug 2021
2-Month 		14.92"
(378.97mm)		 9.79"
(248.67mm)		 5.13"
(130.30mm)		 125th Driest
Driest since:
 2000
4th Wettest
Wettest since:
 1916
Jun–Aug 2021
3-Month 		23.65"
(600.71mm)		 14.07"
(357.38mm)		 9.58"
(243.33mm)		 127th Driest
Driest since:
 1902
2nd Wettest
Wettest since:
 1916
May–Aug 2021
4-Month 		28.34"
(719.84mm)		 18.31"
(465.07mm)		 10.03"
(254.77mm)		 125th Driest
Driest since:
 2000
4th Wettest
Wettest since:
 2003
Apr–Aug 2021
5-Month 		33.89"
(860.81mm)		 23.11"
(586.99mm)		 10.78"
(273.82mm)		 126th Driest
Driest since:
 1902
3rd Wettest
Wettest since:
 2003
Mar–Aug 2021
6-Month 		41.94"
(1,065.28mm)		 29.28"
(743.71mm)		 12.66"
(321.57mm)		 128th Driest
Driest since:
 1925
1st Wettest
Wettest to Date
 2021
Feb–Aug 2021
7-Month 		46.16"
(1,172.46mm)		 34.46"
(875.28mm)		 11.70"
(297.18mm)		 125th Driest
Driest since:
 2007
4th Wettest
Wettest since:
 2003
Jan–Aug 2021
8-Month 		49.88"
(1,266.95mm)		 39.64"
(1,006.86mm)		 10.24"
(260.09mm)		 119th Driest
Driest since:
 2007
10th Wettest
Wettest since:
 1975
Dec 2020–Aug 2021
9-Month 		53.72"
(1,364.49mm)		 44.80"
(1,137.92mm)		 8.92"
(226.57mm)		 111th Driest
Driest since:
 2007
17th Wettest
Wettest since:
 1975
Nov 2020–Aug 2021
10-Month 		56.47"
(1,434.34mm)		 48.61"
(1,234.69mm)		 7.86"
(199.65mm)		 109th Driest
Driest since:
 2000
19th Wettest
Wettest since:
 1949
Oct 2020–Aug 2021
11-Month 		61.58"
(1,564.13mm)		 51.49"
(1,307.85mm)		 10.09"
(256.28mm)		 115th Driest
Driest since:
 2000
13th Wettest
Wettest since:
 2020
Sep 2020–Aug 2021
12-Month 		67.58"
(1,716.53mm)		 55.27"
(1,403.86mm)		 12.31"
(312.67mm)		 118th Driest
Driest since:
 2000
10th Wettest
Wettest since:
 2003
Mar 2020–Aug 2021
18-Month 		100.74"
(2,558.80mm)		 84.71"
(2,151.63mm)		 16.03"
(407.17mm)		 122nd Driest
Driest since:
 2007
6th Wettest
Wettest since:
 1949
Sep 2019–Aug 2021
24-Month 		135.92"
(3,452.37mm)		 110.77"
(2,813.56mm)		 25.15"
(638.81mm)		 125th Driest
Driest since:
 2007
2nd Wettest
Wettest since:
 1920
Sep 2018–Aug 2021
36-Month 		199.99"
(5,079.75mm)		 166.25"
(4,222.75mm)		 33.74"
(857.00mm)		 124th Driest
Driest since:
 2008
2nd Wettest
Wettest since:
 1975
Sep 2017–Aug 2021
48-Month 		253.47"
(6,438.14mm)		 221.53"
(5,626.86mm)		 31.94"
(811.28mm)		 121st Driest
Driest since:
 1899
4th Wettest
Wettest since:
 1976
Sep 2016–Aug 2021
60-Month 		312.64"
(7,941.06mm)		 276.69"
(7,027.93mm)		 35.95"
(913.13mm)		 121st Driest
Driest since:
 1955
3rd Wettest
Wettest since:
 1977

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