"Figure 2. First Leaf and Bloom Dates in Alaska, 1950-2023",,,,
Source: EPA's Climate Change Indicators in the United States: www.epa.gov/climate-indicators,,,,
"Data source: Schwartz, 2024",,,,
Web update: June 2024,,,,
Units: days deviation from 1981-2010 average,,,,
,,,,
Year,Leaf Mean,Leaf 9-yr normal curve,Bloom Mean,Bloom 9-yr normal curve
1950,9.875,7.739542471,10.54166667,7.709228777
1951,3.25,7.856214229,4.107142857,7.725016638
1952,17.24137931,7.42113752,15.27586207,7.160177652
1953,-1.433333333,6.746682053,-1.166666667,6.682945865
1954,5.666666667,6.456315495,3.533333333,7.055438081
1955,10.90322581,6.380161557,15.77419355,7.520984809
1956,6.8,5.543595506,10.3,6.468614179
1957,3.206896552,4.028100424,-0.827586207,4.181224435
1958,-2,3.042837314,-0.870967742,2.551940638
1959,5.870967742,2.969348528,4.35483871,2.336465832
1960,3.066666667,3.577964432,1.066666667,3.15832023
1961,1.21875,4.687256016,3.25,4.556814915
1962,9.64516129,6.417377552,9.677419355,6.185245892
1963,2.677419355,8.539444855,4.225806452,7.802340684
1964,19.09677419,10.06578961,10.93548387,9.147033213
1965,8.90625,10.19086702,12.9375,9.583775187
1966,10.06896552,8.873698718,10.82758621,8.504533021
1967,6.75,6.889000805,4.59375,6.363368835
1968,5.294117647,5.052926694,4.147058824,4.407552756
1969,0.25,4.387912645,-0.28125,3.911037442
1970,-0.28125,5.642617697,0.9375,5.381312804
1971,14,7.778469923,12.2,7.777961144
1972,13.96774194,8.795017623,14,9.196358201
1973,6,8.170427234,9,8.988485426
1974,3.310344828,7.053155192,3.206896552,8.21371234
1975,10.625,5.932854842,10.875,7.492922011
1976,4.8,4.198778695,9.114285714,6.2269767
1977,2.416666667,1.645979515,3.694444444,3.966718246
1978,-3.578947368,-0.846302576,-0.078947368,1.471623989
1979,-3.972222222,-2.43198405,-2.527777778,-0.326475346
1980,-2.461538462,-2.676916018,0.41025641,-0.933492811
1981,-8.175,-1.655205314,-8.075,-0.231760728
1982,9.131578947,-0.129756137,9.973684211,1.161194356
1983,-4.609756098,1.466752692,-2.048780488,2.747973324
1984,1.627906977,3.098961457,2.023255814,4.337048361
1985,10.88095238,4.217432441,12.71428571,5.40696976
1986,6.166666667,3.817648514,5.571428571,5.049734625
1987,-1.159090909,2.13182902,2.886363636,3.35948883
1988,0.659090909,0.415061507,-0.068181818,1.419644185
1989,-0.547619048,-0.64259341,1.69047619,-0.118751496
1990,-4.880952381,-0.778530239,-6.261904762,-0.868639188
1991,0.146341463,-0.411788322,0.829268293,-1.119144665
1992,7.23255814,-0.711327103,4.069767442,-1.729673261
1993,-6.279069767,-2.128211728,-8.418604651,-2.904197872
1994,-4.837209302,-3.663116646,-3.046511628,-3.855631834
1995,-6.302325581,-4.215778754,-5.837209302,-3.896944133
1996,-2.372093023,-3.8104507,-2.627906977,-3.089260405
1997,-4.19047619,-2.622035166,-3.785714286,-1.46457389
1998,-4.348837209,-0.576422499,0.23255814,0.746333779
1999,5.772727273,1.825271029,5.795454545,2.735444884
2000,4.5,3.483208354,5.318181818,3.479537715
2001,6.409090909,3.320280669,5.5,2.437255034
2002,5.512195122,1.300117949,-0.609756098,0.037421872
2003,-6.642857143,-1.3617743,-2.714285714,-2.718331421
2004,-5.255813953,-2.769171283,-7.511627907,-4.441068001
2005,-7.15,-2.035532701,-10.475,-4.116967721
2006,6.476190476,-0.211123373,1.333333333,-2.061735191
2007,-1,1.235789365,0.317073171,0.178881932
2008,5.275,1.601005786,6.65,1.131783877
2009,0.564102564,1.319776675,-0.717948718,0.846972704
2010,-1.953488372,1.201556552,-2.651162791,0.469949231
2011,2.30952381,1.698650822,-0.380952381,0.698639689
2012,1.388888889,2.043379447,5.361111111,0.5909421
2013,11.42857143,0.636055467,3.657142857,-1.20686018
2014,-6.243243243,-2.768174444,-7.486486486,-4.377974932
2015,-8.473684211,-6.350444123,-9.710526316,-7.05876794
2016,-16.4,-7.752995045,-13.45714286,-7.671492927
2017,-4.515151515,-6.851609625,-4.666666667,-6.586880443
2018,-0.441176471,-5.331939313,-0.470588235,-5.396238318
2019,-7.735294118,-4.250682309,-7.441176471,-4.851102085
2020,-3.055555556,-3.269351906,-6.472222222,-4.388472504
2021,-3.342857143,-1.847326221,-1.828571429,-3.481473236
2022,1.090909091,-0.462000528,-3.606060606,-2.514429415
2023,4,0.099216386,1.666666667,-2.115774414