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 2015

View Period (Months):
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  • Record Driest
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  • Record Wettest
Period Value 1925-2000
Mean
Anomaly Rank
(1925-2022)
Wettest/Driest
Since
Record
September 2015
1-Month
6.21"
(157.73mm)
4.57"
(116.08mm)
1.64"
(41.65mm)
92nd Driest
Driest since:
1969
7th Wettest
Wettest since:
1925
Aug–Sep 2015
2-Month
11.09"
(281.69mm)
8.95"
(227.33mm)
2.14"
(54.36mm)
90th Driest
Driest since:
1941
9th Wettest
Wettest since:
2022
Ties: 1925, 2016
Jul–Sep 2015
3-Month
15.01"
(381.25mm)
12.23"
(310.64mm)
2.78"
(70.61mm)
91st Driest
Driest since:
1968
8th Wettest
Wettest since:
2022
Jun–Sep 2015
4-Month
17.08"
(433.83mm)
14.57"
(370.08mm)
2.51"
(63.75mm)
81st Driest
Driest since:
1968
18th Wettest
Wettest since:
2012
May–Sep 2015
5-Month
18.90"
(480.06mm)
16.68"
(423.67mm)
2.22"
(56.39mm)
80th Driest
Driest since:
1969
19th Wettest
Wettest since:
2012
Apr–Sep 2015
6-Month
21.63"
(549.40mm)
18.57"
(471.68mm)
3.06"
(77.72mm)
92nd Driest
Driest since:
1969
7th Wettest
Wettest since:
1961
Mar–Sep 2015
7-Month
23.89"
(606.81mm)
20.80"
(528.32mm)
3.09"
(78.49mm)
91st Driest
Driest since:
1969
8th Wettest
Wettest since:
2016
Feb–Sep 2015
8-Month
25.73"
(653.54mm)
23.12"
(587.25mm)
2.61"
(66.29mm)
81st Driest
Driest since:
1969
18th Wettest
Wettest since:
1928
Jan–Sep 2015
9-Month
28.90"
(734.06mm)
25.85"
(656.59mm)
3.05"
(77.47mm)
84th Driest
Driest since:
1969
15th Wettest
Wettest since:
1928
Dec 2014–Sep 2015
10-Month
31.74"
(806.20mm)
28.92"
(734.57mm)
2.82"
(71.63mm)
79th Driest
Driest since:
1969
19th Wettest
Wettest since:
2022
Nov 2014–Sep 2015
11-Month
34.26"
(870.20mm)
32.29"
(820.17mm)
1.97"
(50.03mm)
63rd Driest
Driest since:
1969
35th Wettest
Wettest since:
1944
Oct 2014–Sep 2015
12-Month
37.46"
(951.48mm)
36.68"
(931.67mm)
0.78"
(19.81mm)
51st Driest
Driest since:
1969
47th Wettest
Wettest since:
1944
Apr 2014–Sep 2015
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: 1937
Oct 2013–Sep 2015
24-Month
79.25"
(2,012.95mm)
73.25"
(1,860.55mm)
6.00"
(152.40mm)
82nd Driest
Driest since:
1969
15th Wettest
Wettest since:
1930
Oct 2012–Sep 2015
36-Month
113.85"
(2,891.79mm)
109.82"
(2,789.43mm)
4.03"
(102.36mm)
59th Driest
Driest since:
1974
37th Wettest
Wettest since:
1930
Oct 2011–Sep 2015
48-Month
155.84"
(3,958.34mm)
146.31"
(3,716.27mm)
9.53"
(242.07mm)
81st Driest
Driest since:
1969
14th Wettest
Wettest since:
1932
Oct 2010–Sep 2015
60-Month
192.80"
(4,897.12mm)
182.77"
(4,642.36mm)
10.03"
(254.76mm)
75th Driest
Driest since:
1972
19th Wettest
Wettest since:
1932

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