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 2012

View Period (Months):
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  • Record Wettest
Period Value 1925-2000
Mean
Anomaly Rank
(1925-2022)
Wettest/Driest
Since
Record
September 2012
1-Month
7.25"
(184.15mm)
4.57"
(116.08mm)
2.68"
(68.07mm)
97th Driest
Driest since:
1969
2nd Wettest
Wettest since:
1925
Aug–Sep 2012
2-Month
11.77"
(298.96mm)
8.95"
(227.33mm)
2.82"
(71.63mm)
97th Driest
Driest since:
1941
2nd Wettest
Wettest to Date
2022
Jul–Sep 2012
3-Month
15.98"
(405.89mm)
12.23"
(310.64mm)
3.75"
(95.25mm)
97th Driest
Driest since:
1968
2nd Wettest
Wettest to Date
2022
Jun–Sep 2012
4-Month
18.86"
(479.04mm)
14.57"
(370.08mm)
4.29"
(108.96mm)
98th Driest
Driest since:
1968
1st Wettest
Wettest to Date
2012
May–Sep 2012
5-Month
21.49"
(545.85mm)
16.68"
(423.67mm)
4.81"
(122.18mm)
98th Driest
Driest since:
1969
1st Wettest
Wettest to Date
2012
Apr–Sep 2012
6-Month
22.54"
(572.52mm)
18.57"
(471.68mm)
3.97"
(100.84mm)
95th Driest
Driest since:
1969
4th Wettest
Wettest since:
1961
Mar–Sep 2012
7-Month
24.36"
(618.74mm)
20.80"
(528.32mm)
3.56"
(90.42mm)
94th Driest
Driest since:
1969
5th Wettest
Wettest since:
2016
Feb–Sep 2012
8-Month
27.10"
(688.34mm)
23.12"
(587.25mm)
3.98"
(101.09mm)
94th Driest
Driest since:
1969
5th Wettest
Wettest since:
1928
Jan–Sep 2012
9-Month
29.89"
(759.21mm)
25.85"
(656.59mm)
4.04"
(102.62mm)
93rd Driest
Driest since:
1969
6th Wettest
Wettest since:
1928
Dec 2011–Sep 2012
10-Month
34.55"
(877.57mm)
28.92"
(734.57mm)
5.63"
(143.00mm)
94th Driest
Driest since:
1969
4th Wettest
Wettest since:
1928
Ties: 2022
Nov 2011–Sep 2012
11-Month
37.83"
(960.88mm)
32.29"
(820.17mm)
5.54"
(140.71mm)
94th Driest
Driest since:
1969
4th Wettest
Wettest since:
1944
Oct 2011–Sep 2012
12-Month
41.99"
(1,066.55mm)
36.68"
(931.67mm)
5.31"
(134.88mm)
92nd Driest
Driest since:
1969
6th Wettest
Wettest since:
1944
Apr 2011–Sep 2012
18-Month
62.38"
(1,584.45mm)
55.22"
(1,402.59mm)
7.16"
(181.86mm)
93rd Driest
Driest since:
1969
5th Wettest
Wettest since:
1944
Oct 2010–Sep 2012
24-Month
78.95"
(2,005.33mm)
73.25"
(1,860.55mm)
5.70"
(144.78mm)
78th Driest
Driest since:
1969
19th Wettest
Wettest since:
1930
Oct 2009–Sep 2012
36-Month
111.74"
(2,838.20mm)
109.82"
(2,789.43mm)
1.92"
(48.77mm)
47th Driest
Driest since:
1974
49th Wettest
Wettest since:
1930
Oct 2008–Sep 2012
48-Month
148.02"
(3,759.71mm)
146.31"
(3,716.27mm)
1.71"
(43.44mm)
44th Driest
Driest since:
1969
51st Wettest
Wettest since:
1932
Oct 2007–Sep 2012
60-Month
184.79"
(4,693.67mm)
182.77"
(4,642.36mm)
2.02"
(51.31mm)
45th Driest
Driest since:
1972
49th Wettest
Wettest since:
1932

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