Please note, Degree Days and Palmer Indices are not available for Alaska or Hawaii. Palmer Drought Severity Index (PDSI), Palmer Hydrological Drought Index (PHDI), and Palmer Modified Drought Index (PMDI) are not offered for multiple-month time scales. Data are available for bulk download.
Base Period
Trend

Filter
Oregon, Climate Division 6 Palmer Z-Index
September-November
Period
Z-Index
Rank
(out of 130)
September-November 2024-1.0125
September-November 2023-0.3450
September-November 2022-0.8729
September-November 2021-0.0764
September-November 2020-0.5244
September-November 2019-0.8331
September-November 2018-1.1618
September-November 20170.6091
September-November 20160.5990
September-November 2015-1.0324
September-November 2014-0.8133
September-November 20130.3078
September-November 2012-0.1061
September-November 2011-1.5012
September-November 20101.36115
September-November 2009-0.5343
September-November 2008-1.7010
September-November 20070.3580
September-November 20060.4182
September-November 2005-0.3549
September-November 2004-1.1022
September-November 2003-1.1816
September-November 2002-2.186
September-November 2001-0.3450
September-November 2000-0.0468
September-November 1999-1.2914
September-November 1998-0.0862
September-November 19970.1476
September-November 19961.53120
September-November 19951.08108
September-November 19941.00105
September-November 1993-2.029
September-November 1992-0.0369
September-November 1991-0.2656
September-November 1990-1.1520
September-November 1989-1.5111
September-November 1988-0.5244
September-November 1987-2.791
September-November 19860.7398
September-November 19851.34113
September-November 19842.00124
September-November 19830.3580
September-November 19822.21126
September-November 19810.5288
September-November 1980-0.3253
September-November 19790.6996
September-November 1978-0.8430
September-November 19770.7097
September-November 1976-2.177
September-November 1975-0.1359
September-November 1974-2.038
September-November 19732.94129
September-November 1972-1.0125
September-November 19710.7799
September-November 19700.4885
September-November 1969-1.0823
September-November 19680.84101
September-November 1967-1.1717
September-November 19660.4081
September-November 1965-1.1618
September-November 1964-0.3848
September-November 1963-0.0270
September-November 19621.23110
September-November 1961-0.1658
September-November 1960-0.0862
September-November 1959-0.1260
September-November 1958-0.6540
September-November 19570.6494
September-November 1956-0.8828
September-November 19552.04125
September-November 1954-0.5941
September-November 1953-0.8037
September-November 1952-2.315
September-November 19510.6595
September-November 19502.54127
September-November 1949-0.2557
September-November 19480.86102
September-November 19473.56130
September-November 19461.23110
September-November 19450.5086
September-November 1944-0.8133
September-November 1943-0.3154
September-November 19420.92104
September-November 19410.84101
September-November 19401.51119
September-November 1939-2.482
September-November 1938-0.8232
September-November 19370.0272
September-November 1936-2.434
September-November 1935-1.4413
September-November 19340.4484
September-November 19330.0573
September-November 1932-0.5742
September-November 1931-0.0468
September-November 1930-0.3352
September-November 1929-2.463
September-November 1928-0.8133
September-November 19272.81128
September-November 19261.39116
September-November 1925-0.7338
September-November 19241.07106
September-November 1923-0.0665
September-November 1922-0.8133
September-November 19211.93123
September-November 19201.35114
September-November 19191.40117
September-November 19180.1074
September-November 1917-1.1321
September-November 1916-0.4047
September-November 19150.1275
September-November 19140.0171
September-November 19130.6293
September-November 1912-0.2755
September-November 19110.5990
September-November 19100.6192
September-November 19091.51119
September-November 1908-0.7338
September-November 1907-0.9527
September-November 19060.5187
September-November 19050.89103
September-November 1904-1.2715
September-November 19031.08108
September-November 19020.4283
September-November 19010.2077
September-November 19001.76122
September-November 18991.71121
September-November 1898-0.0468
September-November 18971.30112
September-November 18961.27111
September-November 1895-0.5146

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