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
Michigan, Climate Division 1 Palmer Z-Index
September-November
Period
Z-Index
Rank
(out of 130)
September-November 2024-2.5310
September-November 2023-2.4513
September-November 2022-0.5254
September-November 2021-3.214
September-November 20201.33102
September-November 20191.77113
September-November 20182.49125
September-November 20171.0595
September-November 20160.6087
September-November 2015-1.7224
September-November 20142.55127
September-November 20130.3981
September-November 2012-0.2765
September-November 2011-1.8322
September-November 20101.79114
September-November 2009-0.6949
September-November 2008-2.2916
September-November 20071.0494
September-November 2006-2.4911
September-November 20050.3578
September-November 2004-1.3932
September-November 2003-1.1637
September-November 20021.63111
September-November 2001-0.9440
September-November 2000-1.7723
September-November 1999-0.8346
September-November 1998-2.639
September-November 1997-1.5928
September-November 19960.2374
September-November 19951.1798
September-November 1994-0.8544
September-November 19930.1673
September-November 19921.0293
September-November 19912.17121
September-November 19900.5586
September-November 1989-2.867
September-November 19881.83115
September-November 1987-0.0567
September-November 1986-0.2964
September-November 19853.57130
September-November 19840.0872
September-November 19832.08118
September-November 19822.23123
September-November 1981-0.9143
September-November 19801.49107
September-November 19791.0091
September-November 19780.5485
September-November 19771.56109
September-November 1976-4.081
September-November 1975-0.1266
September-November 19741.1798
September-November 1973-1.3333
September-November 19721.34103
September-November 1971-0.3862
September-November 19701.2299
September-November 1969-0.5552
September-November 19681.57110
September-November 19670.2575
September-November 1966-0.3763
September-November 19651.39104
September-November 19640.0872
September-November 1963-3.802
September-November 1962-0.7847
September-November 1961-0.4258
September-November 19600.4282
September-November 19592.51126
September-November 19580.2977
September-November 19570.3680
September-November 1956-1.2734
September-November 1955-0.5453
September-November 19541.46105
September-November 1953-1.6727
September-November 1952-2.0918
September-November 19511.55108
September-November 1950-0.9242
September-November 19490.7889
September-November 1948-3.025
September-November 1947-2.4812
September-November 1946-0.5056
September-November 19451.0192
September-November 1944-0.4357
September-November 1943-1.9919
September-November 19421.74112
September-November 19411.95116
September-November 1940-1.2734
September-November 1939-2.838
September-November 19380.0570
September-November 19370.2676
September-November 1936-1.6826
September-November 19350.0369
September-November 19342.71128
September-November 1933-1.0738
September-November 1932-1.5329
September-November 19312.12120
September-November 1930-2.2817
September-November 1929-0.3961
September-November 19282.42124
September-November 1927-0.9440
September-November 19263.38129
September-November 1925-0.0368
September-November 1924-1.2336
September-November 1923-1.9820
September-November 1922-0.8445
September-November 1921-2.3815
September-November 1920-2.3914
September-November 19190.7889
September-November 19180.4984
September-November 1917-0.5254
September-November 19161.26100
September-November 19151.99117
September-November 1914-1.7025
September-November 19130.3680
September-November 1912-0.5651
September-November 19112.19122
September-November 1910-2.996
September-November 1909-0.7548
September-November 1908-3.463
September-November 1907-1.0539
September-November 19061.0896
September-November 19050.4984
September-November 19041.28101
September-November 19031.48106
September-November 1902-0.5950
September-November 1901-0.4060
September-November 19002.10119
September-November 1899-0.4159
September-November 1898-1.5130
September-November 1897-1.9521
September-November 18960.9190
September-November 1895-1.4531

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