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 8 Palmer Z-Index
October-December
Period
Z-Index
Rank
(out of 130)
October-December 2024-0.8535
October-December 20230.2269
October-December 2022-0.6640
October-December 20210.8191
October-December 2020-0.6542
October-December 20191.94120
October-December 20181.06100
October-December 20172.55129
October-December 20160.4277
October-December 2015-0.3646
October-December 20141.08102
October-December 20131.15106
October-December 2012-0.0654
October-December 20110.4879
October-December 2010-1.7114
October-December 20091.33109
October-December 20081.87118
October-December 2007-0.5443
October-December 20061.60115
October-December 2005-1.5121
October-December 20040.5080
October-December 20030.6884
October-December 2002-1.6416
October-December 20011.45113
October-December 20000.9798
October-December 1999-2.643
October-December 1998-2.119
October-December 1997-0.8037
October-December 19960.0460
October-December 19950.1668
October-December 19940.7889
October-December 19930.1567
October-December 19921.76117
October-December 19912.49127
October-December 19903.55130
October-December 1989-0.5044
October-December 19882.54128
October-December 19871.36112
October-December 1986-0.1252
October-December 19851.88119
October-December 19840.7086
October-December 19830.0963
October-December 19821.25108
October-December 19810.0359
October-December 19800.2670
October-December 19791.15106
October-December 19780.7187
October-December 19770.6985
October-December 1976-1.4023
October-December 19750.3472
October-December 1974-0.9734
October-December 19730.1064
October-December 19722.02123
October-December 1971-0.7039
October-December 19700.7288
October-December 19690.2971
October-December 19681.08102
October-December 19671.99121
October-December 19661.06100
October-December 19651.09104
October-December 1964-1.5620
October-December 1963-2.277
October-December 1962-1.5818
October-December 1961-0.3547
October-December 1960-2.148
October-December 19591.54114
October-December 1958-1.6515
October-December 19571.20107
October-December 1956-3.531
October-December 19550.3975
October-December 19542.44126
October-December 1953-2.912
October-December 1952-1.1428
October-December 19512.02123
October-December 1950-0.8535
October-December 1949-0.2448
October-December 1948-1.8411
October-December 1947-1.3824
October-December 1946-1.3527
October-December 1945-0.0455
October-December 1944-2.486
October-December 1943-1.7812
October-December 19421.09104
October-December 19412.05124
October-December 19400.0862
October-December 1939-1.4522
October-December 1938-2.505
October-December 1937-0.2151
October-December 19360.3874
October-December 1935-0.0356
October-December 1934-0.2448
October-December 19330.6582
October-December 19320.8492
October-December 1931-0.3845
October-December 1930-2.554
October-December 19290.1064
October-December 19280.9395
October-December 19271.76117
October-December 19260.8191
October-December 19250.3773
October-December 1924-1.3625
October-December 19230.4778
October-December 1922-1.1030
October-December 19211.36112
October-December 1920-1.3625
October-December 1919-0.7438
October-December 19180.8993
October-December 1917-0.0257
October-December 19160.0460
October-December 1915-0.9832
October-December 1914-1.6017
October-December 1913-1.5818
October-December 19120.6884
October-December 19112.09125
October-December 1910-1.1229
October-December 19090.5681
October-December 1908-1.9710
October-December 19070.9697
October-December 19060.4076
October-December 19050.1366
October-December 1904-1.7213
October-December 1903-0.1053
October-December 19020.9194
October-December 1901-0.6640
October-December 19000.0058
October-December 1899-0.9832
October-December 18980.9697
October-December 1897-1.0331
October-December 1896-0.2448
October-December 18951.35110

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