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
19181025.04%
191910-15.81%
19201020.37%
19211025.08%
19221023.97%
19231021.22%
19241020.00%
19251015.70%
1926101.72%
192710-11.24%
19281011.51%
19291036.17%
1930108.17%
193110-6.56%
19321015.24%
193310-7.24%
193410-26.47%
19351030.21%
193610-8.88%
19371014.56%
1938107.64%
1939103.31%
194010-6.32%
1941106.90%
19421010.67%
1943105.46%
19441028.67%
19451015.76%
19461025.42%
194710-1.96%
1948109.24%
19491018.44%
195010-1.81%
1951106.29%
19521014.42%
195310-16.26%
195410-4.70%
19551020.03%
1956101.63%
1957100.55%
1958104.94%
195910-2.29%
1960107.74%
19611011.70%
1962108.67%
19631038.90%
1964107.71%
19651012.08%
196610-7.31%
19671010.26%
196810-11.90%
196910-23.99%
197010-7.30%
197110-9.02%
197210-12.36%
197310-5.62%
197410-21.65%
1975100.29%
197610-10.15%
19771010.37%
197810-13.34%
197910-0.83%
19801010.13%
1981109.24%
19821015.31%
198310-11.47%
198410-11.25%
19851017.02%
198610-6.76%
198710-5.04%
198810-1.32%
19891013.63%
19901012.91%
199110-0.02%
199210-7.78%
1993105.45%
1994103.53%
199510-6.91%
1996106.11%
199710-11.50%
19981017.30%
1999101.78%
20001011.94%
20011014.87%
20021019.74%
2003105.45%
2004102.90%
2005105.29%
20061012.32%
200710-9.82%
2008108.11%
20091022.92%
201010-5.92%
2011109.71%
20121016.48%
20131020.78%
2014105.11%