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%
19221023.98%
19231021.19%
19241020.01%
19251015.69%
1926101.71%
192710-11.23%
19281011.51%
19291036.15%
1930108.18%
193110-6.56%
19321015.25%
193310-7.24%
193410-26.48%
19351030.22%
193610-8.86%
19371014.57%
1938107.64%
1939103.31%
194010-6.33%
1941106.90%
19421010.67%
1943105.46%
19441028.68%
19451015.76%
19461025.42%
194710-1.96%
1948109.26%
19491018.45%
195010-1.81%
1951106.30%
19521014.42%
195310-16.26%
195410-4.70%
19551020.03%
1956101.63%
1957100.56%
1958104.94%
195910-2.29%
1960107.74%
19611011.71%
1962108.68%
19631038.91%
1964107.72%
19651012.08%
196610-7.30%
19671010.26%
196810-11.90%
196910-23.99%
197010-7.30%
197110-9.01%
197210-12.35%
197310-5.63%
197410-21.64%
1975100.30%
197610-10.15%
19771010.38%
197810-13.33%
197910-0.82%
19801010.14%
1981109.25%
19821015.31%
198310-11.46%
198410-11.25%
19851017.02%
198610-6.76%
198710-5.03%
198810-1.32%
19891013.64%
19901012.91%
199110-0.02%
199210-7.81%
1993105.47%
1994103.53%
199510-6.90%
1996106.11%
199710-11.51%
19981017.14%
1999101.84%
20001011.96%
20011014.90%
20021019.92%
2003105.57%
2004103.03%
2005105.53%
20061012.47%
200710-9.70%
2008108.24%
20091023.02%
201010-5.83%
2011109.82%
20121016.61%
20131021.86%