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
19180475.23%
191904-41.90%
192004-52.76%
19210428.34%
19220453.70%
1923041.95%
19240420.70%
192504-5.09%
19260455.93%
192704-13.12%
192804-44.23%
19290439.82%
193004-9.48%
193104-22.68%
193204-68.51%
193304-9.76%
1934048.84%
19350442.68%
193604-60.18%
1937048.70%
193804-23.02%
19390416.96%
194004-28.17%
19410419.97%
1942045.90%
194304-44.51%
194404-41.13%
194504-27.22%
19460421.08%
194704-20.46%
19480468.02%
194904-13.22%
1950048.45%
19510411.47%
1952049.58%
195304-46.59%
195404-49.31%
1955044.68%
195604-17.65%
195704-20.42%
195804-6.02%
19590417.26%
1960049.26%
19610485.98%
196204-4.15%
19630496.96%
19640468.33%
19650447.48%
196604-8.16%
19670475.11%
196804-3.26%
196904-46.07%
19700419.68%
197104-28.25%
197204-6.19%
197304-16.35%
197404-19.37%
19750448.00%
197604-18.49%
19770473.92%
197804-4.55%
19790485.61%
198004-17.07%
198104-20.27%
19820424.48%
19830488.26%
198404-0.24%
198504-28.94%
198604-25.90%
198704-41.92%
198804-15.81%
19890435.87%
199004-14.32%
199104-17.45%
199204-31.07%
199304-48.82%
199404-13.77%
1995048.96%
199604-40.36%
199704-25.45%
19980447.29%
19990451.62%
200004-29.41%
20010465.70%
20020497.79%
200304-14.09%
20040411.19%
200504-32.82%
20060442.06%
200704-22.54%
20080474.70%
20090422.88%
20100430.65%
2011044.61%
2012042.20%
201304-12.65%
201404-23.32%