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
191901-20.55%
192001-29.90%
19210115.04%
19220164.77%
19230168.80%
19240118.84%
192501-46.51%
19260126.92%
1927014.44%
19280123.14%
19290187.56%
193001-24.00%
193101-34.20%
19320161.10%
19330117.68%
193401-33.48%
19350146.21%
193601-20.62%
193701277.16%
193801-10.96%
193901-15.17%
19400118.26%
194101-39.65%
194201-14.00%
194301-37.01%
194401-12.70%
194501-35.97%
194601-7.56%
19470153.94%
19480140.14%
194901103.81%
19500147.24%
195101-36.46%
19520169.80%
195301-57.37%
195401-16.48%
19550120.61%
195601-25.96%
195701112.81%
195801-14.11%
195901-55.54%
19600145.18%
196101-17.45%
19620155.64%
196301120.04%
196401-34.84%
196501-16.57%
196601-47.62%
196701-20.28%
19680112.51%
196901-43.63%
197001-54.19%
197101-48.02%
197201-1.74%
19730126.81%
197401-42.41%
197501-4.73%
197601-6.43%
1977014.39%
197801-42.28%
197901-28.58%
19800120.79%
19810128.46%
19820114.50%
198301-42.26%
19840130.46%
19850127.39%
1986010.51%
19870122.73%
198801-32.39%
19890111.57%
19900112.66%
199101-5.16%
199201-8.86%
19930199.30%
199401-5.27%
199501-33.36%
199601-36.65%
199701-18.30%
199801-32.21%
19990119.42%
20000169.65%
20010120.72%
20020155.62%
200301-39.36%
200401-42.57%
2005011.69%
200601-49.18%
20070134.08%
20080133.23%
20090153.06%
201001-45.71%
201101-1.19%
201201-11.01%
20130155.71%
20140157.69%
201501-8.49%