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.


Place mouse on axis and left-click to pan; wheel up/down for zoom in/out (or shift key+left-click).

Download: xml csv json
DateAnomaly
1918096.20%
191909-1.93%
19200918.75%
192109-8.94%
19220927.39%
192309-1.67%
19240937.20%
19250943.17%
192609-6.90%
192709-14.30%
19280941.62%
19290930.54%
19300928.02%
1931098.09%
19320920.34%
193309-23.45%
193409-27.36%
193509-0.21%
193609-10.55%
1937094.49%
19380918.86%
19390926.71%
19400915.01%
194109-13.13%
19420921.49%
19430917.82%
19440927.87%
19450929.34%
19460925.21%
1947098.22%
19480925.44%
1949091.36%
1950093.69%
19510918.61%
1952095.74%
195309-0.43%
19540917.67%
19550914.75%
1956097.18%
195709-13.05%
19580914.71%
19590910.58%
19600927.52%
19610934.79%
196209-10.27%
1963092.50%
196409-18.98%
19650916.19%
196609-0.43%
19670916.78%
196809-29.43%
196909-17.01%
197009-4.52%
197109-1.43%
197209-18.97%
197309-8.40%
197409-15.90%
197509-1.33%
197609-16.72%
197709-10.17%
197809-19.62%
197909-6.63%
1980091.51%
1981097.81%
19820914.49%
198309-1.26%
198409-9.97%
1985099.32%
1986099.32%
198709-3.82%
198809-9.40%
1989097.89%
19900915.65%
199109-11.01%
199209-7.40%
1993094.18%
1994097.47%
199509-8.23%
199609-6.23%
1997098.60%
19980928.61%
19990910.21%
20000931.43%
20010911.60%
2002098.18%
2003093.83%
200409-10.13%
20050919.35%
20060911.71%
2007095.60%
200809-4.78%
200909-7.12%
2010099.76%
20110917.49%
20120931.50%
20130912.93%
20140916.76%