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.

Alaska

Precipitation Rankings, September 1937

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Period Value 1925-2000
Mean		 Anomaly Rank
(1925-2022)		 Wettest/Driest
Since		 Record
September 1937
1-Month 		4.56"
(115.82mm)		 4.57"
(116.08mm)		 -0.01"
(-0.26mm)		 47th Driest
Driest since:
 1969
52nd Wettest
Wettest since:
 1925
Aug–Sep 1937
2-Month 		9.52"
(241.81mm)		 8.95"
(227.33mm)		 0.57"
(14.48mm)		 61st Driest
Driest since:
 1941
38th Wettest
Wettest since:
 2022
Jul–Sep 1937
3-Month 		12.41"
(315.21mm)		 12.23"
(310.64mm)		 0.18"
(4.57mm)		 54th Driest
Driest since:
 1968
45th Wettest
Wettest since:
 2022
Jun–Sep 1937
4-Month 		14.55"
(369.57mm)		 14.57"
(370.08mm)		 -0.02"
(-0.51mm)		 46th Driest
Driest since:
 1968
53rd Wettest
Wettest since:
 2012
May–Sep 1937
5-Month 		16.51"
(419.35mm)		 16.68"
(423.67mm)		 -0.17"
(-4.32mm)		 42nd Driest
Driest since:
 1969
57th Wettest
Wettest since:
 2012
Apr–Sep 1937
6-Month 		18.84"
(478.54mm)		 18.57"
(471.68mm)		 0.27"
(6.86mm)		 47th Driest
Driest since:
 1969
52nd Wettest
Wettest since:
 1961
Mar–Sep 1937
7-Month 		20.31"
(515.87mm)		 20.80"
(528.32mm)		 -0.49"
(-12.45mm)		 36th Driest
Driest since:
 1969
63rd Wettest
Wettest since:
 2016
Feb–Sep 1937
8-Month 		22.15"
(562.61mm)		 23.12"
(587.25mm)		 -0.97"
(-24.64mm)		 29th Driest
Driest since:
 1969
70th Wettest
Wettest since:
 1928
Jan–Sep 1937
9-Month 		26.49"
(672.85mm)		 25.85"
(656.59mm)		 0.64"
(16.26mm)		 54th Driest
Driest since:
 1969
45th Wettest
Wettest since:
 1928
Ties: 2018
Dec 1936–Sep 1937
10-Month 		29.76"
(755.90mm)		 28.92"
(734.57mm)		 0.84"
(21.33mm)		 55th Driest
Driest since:
 1969
43rd Wettest
Wettest since:
 2022
Nov 1936–Sep 1937
11-Month 		36.03"
(915.16mm)		 32.29"
(820.17mm)		 3.74"
(94.99mm)		 84th Driest
Driest since:
 1969
14th Wettest
Wettest since:
 1944
Oct 1936–Sep 1937
12-Month 		43.48"
(1,104.39mm)		 36.68"
(931.67mm)		 6.80"
(172.72mm)		 96th Driest
Driest since:
 1969
2nd Wettest
Wettest to Date
 1944
Apr 1936–Sep 1937
18-Month 		58.74"
(1,492.00mm)		 55.22"
(1,402.59mm)		 3.52"
(89.41mm)		 73rd Driest
Driest since:
 1969
25th Wettest
Wettest since:
 1944
Ties: 2015
Oct 1935–Sep 1937
24-Month 		77.05"
(1,957.07mm)		 73.25"
(1,860.55mm)		 3.80"
(96.52mm)		 67th Driest
Driest since:
 1969
30th Wettest
Wettest since:
 1930
Oct 1934–Sep 1937
36-Month 		116.24"
(2,952.50mm)		 109.82"
(2,789.43mm)		 6.42"
(163.07mm)		 70th Driest
Driest since:
 1974
26th Wettest
Wettest since:
 1930
Oct 1933–Sep 1937
48-Month 		149.09"
(3,786.89mm)		 146.31"
(3,716.27mm)		 2.78"
(70.62mm)		 48th Driest
Driest since:
 1969
47th Wettest
Wettest since:
 1932
Oct 1932–Sep 1937
60-Month 		179.20"
(4,551.68mm)		 182.77"
(4,642.36mm)		 -3.57"
(-90.68mm)		 28th Driest
Driest since:
 1972
66th Wettest
Wettest since:
 1932

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