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 1920

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  • Record Wettest
Period Value 1901-2000
Mean		 Anomaly Rank
(1895-2022)		 Wettest/Driest
Since		 Record
September 1920
1-Month 		3.03"
(76.96mm)		 3.78"
(96.01mm)		 -0.75"
(-19.05mm)		 48th Driest
Driest since:
 2019
81st Wettest
Wettest since:
 1988
Aug–Sep 1920
2-Month 		9.88"
(250.95mm)		 8.12"
(206.25mm)		 1.76"
(44.70mm)		 97th Driest
Driest since:
 1954
32nd Wettest
Wettest since:
 1939
Jul–Sep 1920
3-Month 		15.01"
(381.25mm)		 13.57"
(344.68mm)		 1.44"
(36.57mm)		 85th Driest
Driest since:
 1954
44th Wettest
Wettest since:
 1916
Jun–Sep 1920
4-Month 		19.55"
(496.57mm)		 17.84"
(453.14mm)		 1.71"
(43.43mm)		 82nd Driest
Driest since:
 1954
47th Wettest
Wettest since:
 2021
May–Sep 1920
5-Month 		24.61"
(625.09mm)		 22.09"
(561.09mm)		 2.52"
(64.00mm)		 92nd Driest
Driest since:
 1954
37th Wettest
Wettest since:
 2003
Apr–Sep 1920
6-Month 		33.95"
(862.33mm)		 26.89"
(683.01mm)		 7.06"
(179.32mm)		 116th Driest
Driest since:
 1954
13th Wettest
Wettest since:
 2003
Mar–Sep 1920
7-Month 		41.39"
(1,051.31mm)		 33.05"
(839.47mm)		 8.34"
(211.84mm)		 116th Driest
Driest since:
 1954
13th Wettest
Wettest since:
 2021
Feb–Sep 1920
8-Month 		45.54"
(1,156.72mm)		 38.23"
(971.04mm)		 7.31"
(185.68mm)		 107th Driest
Driest since:
 1954
22nd Wettest
Wettest since:
 1975
Jan–Sep 1920
9-Month 		52.08"
(1,322.83mm)		 43.41"
(1,102.61mm)		 8.67"
(220.22mm)		 113th Driest
Driest since:
 1954
16th Wettest
Wettest since:
 1975
Dec 1919–Sep 1920
10-Month 		59.12"
(1,501.65mm)		 48.58"
(1,233.93mm)		 10.54"
(267.72mm)		 119th Driest
Driest since:
 2007
9th Wettest
Wettest since:
 1975
Nov 1919–Sep 1920
11-Month 		64.15"
(1,629.41mm)		 52.38"
(1,330.45mm)		 11.77"
(298.96mm)		 118th Driest
Driest since:
 2000
10th Wettest
Wettest since:
 1975
Oct 1919–Sep 1920
12-Month 		68.81"
(1,747.77mm)		 55.27"
(1,403.86mm)		 13.54"
(343.91mm)		 120th Driest
Driest since:
 2000
8th Wettest
Wettest since:
 2020
Apr 1919–Sep 1920
18-Month 		98.11"
(2,491.99mm)		 82.32"
(2,090.93mm)		 15.79"
(401.06mm)		 123rd Driest
Driest since:
 2007
5th Wettest
Wettest since:
 1975
Oct 1918–Sep 1920
24-Month 		137.59"
(3,494.79mm)		 110.77"
(2,813.56mm)		 26.82"
(681.23mm)		 125th Driest
Driest since:
 2007
2nd Wettest
Wettest to Date
 2021
Oct 1917–Sep 1920
36-Month 		178.53"
(4,534.66mm)		 166.30"
(4,224.02mm)		 12.23"
(310.64mm)		 104th Driest
Driest since:
 2008
22nd Wettest
Wettest to Date
 1975
Oct 1916–Sep 1920
48-Month 		236.51"
(6,007.35mm)		 221.61"
(5,628.89mm)		 14.90"
(378.46mm)		 105th Driest
Driest since:
 1899
20th Wettest
Wettest to Date
 1976
Oct 1915–Sep 1920
60-Month 		295.96"
(7,517.38mm)		 276.82"
(7,031.23mm)		 19.14"
(486.15mm)		 107th Driest
Driest since:
 1955
17th Wettest
Wettest to Date
 1977

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