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, August 2018

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  • Record Wettest
Period Value 1925-2000
Mean		 Anomaly Rank
(1925-2022)		 Wettest/Driest
Since		 Record
August 2018
1-Month 		6.53"
(165.86mm)		 4.37"
(111.00mm)		 2.16"
(54.86mm)		 98th Driest
Driest since:
 1941
1st Wettest
Wettest to Date
 2018
Jul–Aug 2018
2-Month 		9.30"
(236.22mm)		 7.66"
(194.56mm)		 1.64"
(41.66mm)		 83rd Driest
Driest since:
 1977
16th Wettest
Wettest since:
 2022
Ties: 1932
Jun–Aug 2018
3-Month 		12.31"
(312.67mm)		 10.00"
(254.00mm)		 2.31"
(58.67mm)		 89th Driest
Driest since:
 1957
10th Wettest
Wettest since:
 2014
May–Aug 2018
4-Month 		15.29"
(388.37mm)		 12.11"
(307.59mm)		 3.18"
(80.78mm)		 97th Driest
Driest since:
 1957
2nd Wettest
Wettest since:
 1998
Apr–Aug 2018
5-Month 		17.37"
(441.20mm)		 14.00"
(355.60mm)		 3.37"
(85.60mm)		 96th Driest
Driest since:
 1957
3rd Wettest
Wettest since:
 1998
Mar–Aug 2018
6-Month 		19.40"
(492.76mm)		 16.23"
(412.24mm)		 3.17"
(80.52mm)		 95th Driest
Driest since:
 1957
4th Wettest
Wettest since:
 1998
Feb–Aug 2018
7-Month 		21.48"
(545.59mm)		 18.55"
(471.17mm)		 2.93"
(74.42mm)		 90th Driest
Driest since:
 1957
9th Wettest
Wettest since:
 1963
Jan–Aug 2018
8-Month 		23.92"
(607.57mm)		 21.28"
(540.51mm)		 2.64"
(67.06mm)		 85th Driest
Driest since:
 1969
14th Wettest
Wettest since:
 1963
Dec 2017–Aug 2018
9-Month 		27.47"
(697.74mm)		 24.38"
(619.25mm)		 3.09"
(78.49mm)		 86th Driest
Driest since:
 1969
12th Wettest
Wettest since:
 1944
Nov 2017–Aug 2018
10-Month 		29.81"
(757.17mm)		 27.76"
(705.10mm)		 2.05"
(52.07mm)		 65th Driest
Driest since:
 1969
33rd Wettest
Wettest since:
 1944
Oct 2017–Aug 2018
11-Month 		35.04"
(890.02mm)		 32.15"
(816.61mm)		 2.89"
(73.41mm)		 75th Driest
Driest since:
 1969
23rd Wettest
Wettest since:
 1944
Sep 2017–Aug 2018
12-Month 		40.36"
(1,025.14mm)		 36.70"
(932.18mm)		 3.66"
(92.96mm)		 77th Driest
Driest since:
 1969
21st Wettest
Wettest since:
 1944
Mar 2017–Aug 2018
18-Month 		56.74"
(1,441.20mm)		 52.92"
(1,344.17mm)		 3.82"
(97.03mm)		 77th Driest
Driest since:
 1969
21st Wettest
Wettest since:
 1944
Sep 2016–Aug 2018
24-Month 		74.57"
(1,894.08mm)		 73.26"
(1,860.80mm)		 1.31"
(33.28mm)		 53rd Driest
Driest since:
 1969
44th Wettest
Wettest since:
 1930
Ties: 1999
Sep 2015–Aug 2018
36-Month 		116.46"
(2,958.08mm)		 109.83"
(2,789.68mm)		 6.63"
(168.40mm)		 75th Driest
Driest since:
 1974
21st Wettest
Wettest since:
 1931
Sep 2014–Aug 2018
48-Month 		152.53"
(3,874.26mm)		 146.33"
(3,716.78mm)		 6.20"
(157.48mm)		 61st Driest
Driest since:
 1972
34th Wettest
Wettest since:
 1932
Sep 2013–Aug 2018
60-Month 		194.92"
(4,950.97mm)		 182.81"
(4,643.37mm)		 12.11"
(307.60mm)		 86th Driest
Driest since:
 1976
8th Wettest
Wettest since:
 1932
Ties: 1941

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