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
191812-9.89%
19191217.66%
1920122.49%
19211213.87%
19221232.99%
192312-6.39%
192412-12.51%
19251254.43%
192612-13.34%
192712-17.81%
192812-2.17%
1929123.62%
19301212.62%
19311216.29%
193212-29.46%
193312-42.34%
193412-12.04%
1935126.43%
19361242.72%
193712-19.20%
19381219.61%
193912-14.24%
1940120.83%
1941122.71%
194212-35.08%
19431225.74%
194412-11.07%
194512-12.86%
19461236.30%
194712-2.03%
1948120.35%
1949121.21%
195012-19.71%
1951127.04%
195212-2.72%
195312-33.82%
195412-19.31%
195512-18.66%
195612-13.92%
195712-3.66%
195812-2.00%
195912-10.98%
1960120.70%
196112-0.99%
196212-33.45%
196312-23.76%
196412-16.74%
196512-5.05%
196612-11.57%
19671214.81%
196812-26.75%
196912-19.63%
19701213.24%
19711222.70%
1972121.76%
197312-14.66%
197412-5.16%
197512-32.53%
1976122.07%
197712-23.05%
19781228.70%
19791229.80%
198012-29.01%
198112-8.17%
198212-2.38%
198312-14.68%
198412-18.25%
1985128.30%
19861214.97%
1987127.94%
1988122.78%
1989125.73%
19901230.80%
199112-6.61%
19921216.38%
19931237.45%
19941228.65%
199512-44.64%
199612-23.27%
199712-1.81%
199812-13.66%
199912-7.88%
2000127.73%
200112-26.43%
2002123.90%
20031226.05%
20041232.27%
200512-1.54%
2006121.77%
2007122.31%
200812-12.12%
200912-4.65%
20101212.35%
20111237.25%
201212-13.89%
20131252.86%