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
191811-19.26%
1919110.09%
192011-8.75%
192111-47.77%
19221153.83%
192311-5.80%
192411-27.98%
19251171.63%
192611-31.75%
192711-56.34%
19281120.28%
19291149.65%
19301116.20%
19311131.93%
193211-54.01%
1933117.18%
193411-76.01%
19351130.85%
19361153.73%
193711-1.45%
19381139.05%
193911-38.07%
194011-17.20%
1941116.80%
194211-38.56%
19431126.85%
194411-33.28%
194511-27.25%
194611-12.92%
19471110.76%
1948112.92%
194911-5.41%
195011-19.36%
1951116.18%
19521114.59%
195311-41.85%
195411-10.24%
195511-44.16%
19561117.21%
19571116.76%
1958113.83%
195911-0.28%
196011-14.62%
196111-9.30%
196211-46.93%
196311-69.07%
196411-13.83%
19651112.57%
1966118.46%
19671153.89%
196811-21.00%
196911-16.98%
19701114.66%
197111-12.97%
197211-20.76%
197311-10.89%
19741115.82%
197511-59.20%
19761143.93%
197711-51.52%
19781117.19%
197911102.63%
198011-33.60%
1981112.77%
1982114.40%
198311-12.83%
198411-38.79%
198511-3.76%
1986116.91%
1987112.53%
198811-22.50%
198911-9.29%
19901118.18%
199111-21.10%
19921136.29%
19931180.00%
19941164.92%
199511-60.34%
199611-12.65%
19971117.68%
199811-36.80%
199911-36.17%
20001129.90%
200111-49.76%
200211-5.62%
20031174.65%
20041128.70%
2005114.60%
200611-43.74%
20071123.76%
200811-17.18%
20091119.77%
20101174.01%
2011116.52%
201211-31.51%
20131138.28%