Alaska Statewide Anomalies

Alaska's weather observation history, much like its broader history, is unique and developed rapidly during the 20th Century. Therefore, NCDC uses a period of record for statewide-averaged temperature and precipitation that begins in 1918. Earlier statewide-averaged values are not calculated at this time. It should be noted that the methodology differs from that used for CONUS states, in that the Alaskan value represents a gridded approach (the statewide values are the composite of a set of grid boxes), and that coverage is not as complete as that for the CONUS. Alaska Statewide temperature and precipitation anomalies are calculated with respect to the 1971-2000 base period.


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DateAnomaly
191812-9.94%
19191217.61%
1920122.48%
19211213.87%
19221232.98%
192312-6.39%
192412-12.54%
19251254.42%
192612-13.37%
192712-17.83%
192812-2.19%
1929123.58%
19301212.60%
19311216.27%
193212-29.50%
193312-42.37%
193412-12.12%
1935126.41%
19361242.64%
193712-19.21%
19381219.60%
193912-14.28%
1940120.81%
1941122.70%
194212-35.10%
19431225.74%
194412-11.10%
194512-12.86%
19461236.27%
194712-2.04%
1948120.31%
1949121.19%
195012-19.74%
1951127.03%
195212-2.74%
195312-33.82%
195412-19.33%
195512-18.67%
195612-13.94%
195712-3.68%
195812-2.02%
195912-10.98%
1960120.70%
196112-1.01%
196212-33.47%
196312-23.78%
196412-16.76%
196512-5.06%
196612-11.58%
19671214.81%
196812-26.76%
196912-19.65%
19701213.21%
19711222.67%
1972121.74%
197312-14.67%
197412-5.19%
197512-32.54%
1976122.06%
197712-23.07%
19781228.69%
19791229.79%
198012-29.03%
198112-8.18%
198212-2.39%
198312-14.69%
198412-18.25%
1985128.29%
19861214.96%
1987127.93%
1988122.78%
1989125.71%
19901230.79%
199112-6.63%
19921216.47%
19931237.44%
19941228.64%
199512-44.65%
199612-23.28%
199712-1.85%
199812-13.10%
199912-7.90%
2000127.44%
200112-26.41%
2002124.06%
20031227.31%
20041232.02%
200512-1.62%
2006121.51%
2007122.19%
200812-12.32%
200912-3.82%
20101212.21%
20111237.10%
201212-14.03%
20131252.21%
201412-19.12%