Divisional Time Series

Data Info Data Service
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 9 Palmer Z-Index
August-October
Period
Z-Index
Rank
(out of 130)
August-October 2024-1.0430
August-October 20230.2873
August-October 2022-0.1459
August-October 20212.82127
August-October 2020-0.0963
August-October 20192.10117
August-October 20181.0097
August-October 20170.2974
August-October 20162.61125
August-October 2015-0.2958
August-October 20140.8390
August-October 20130.3475
August-October 20120.1369
August-October 20110.9493
August-October 2010-1.3220
August-October 20091.67113
August-October 20082.26122
August-October 20071.45110
August-October 20061.44109
August-October 2005-2.562
August-October 2004-0.3057
August-October 20030.5382
August-October 2002-1.879
August-October 20012.32123
August-October 20001.42108
August-October 1999-1.5815
August-October 1998-0.7737
August-October 19970.9896
August-October 1996-0.4945
August-October 1995-0.3852
August-October 19940.9795
August-October 19932.77126
August-October 19922.09116
August-October 19910.8188
August-October 19901.33106
August-October 19890.6084
August-October 19882.25120
August-October 19872.15118
August-October 19863.55130
August-October 19851.0198
August-October 1984-0.4747
August-October 1983-0.6542
August-October 1982-1.2026
August-October 19812.96129
August-October 19802.23119
August-October 1979-0.7239
August-October 19780.1268
August-October 19770.4679
August-October 1976-1.2821
August-October 19752.26122
August-October 1974-1.0231
August-October 1973-1.0829
August-October 19722.33124
August-October 1971-1.1428
August-October 19700.6385
August-October 1969-1.6613
August-October 1968-0.0266
August-October 19670.3576
August-October 1966-0.9733
August-October 19650.9594
August-October 1964-0.6741
August-October 1963-2.175
August-October 1962-1.2224
August-October 19610.6686
August-October 1960-1.2423
August-October 19590.4478
August-October 19580.5081
August-October 19570.2372
August-October 1956-2.027
August-October 1955-0.3254
August-October 19541.13103
August-October 1953-2.175
August-October 1952-1.3318
August-October 19511.04100
August-October 1950-0.1459
August-October 1949-0.4249
August-October 1948-2.394
August-October 1947-0.0565
August-October 1946-1.8410
August-October 19451.57111
August-October 1944-1.958
August-October 1943-0.3453
August-October 19421.11102
August-October 1941-0.0864
August-October 19401.0299
August-October 1939-0.3951
August-October 1938-0.8336
August-October 1937-0.4150
August-October 19360.8891
August-October 1935-0.5044
August-October 1934-1.1627
August-October 19330.0167
August-October 19321.68114
August-October 1931-1.6014
August-October 1930-2.781
August-October 1929-1.4316
August-October 1928-0.3156
August-October 1927-0.1161
August-October 19261.70115
August-October 19251.21105
August-October 1924-0.4846
August-October 19230.2071
August-October 1922-1.2821
August-October 19210.4980
August-October 1920-1.3318
August-October 1919-0.5543
August-October 1918-1.3517
August-October 19170.6084
August-October 1916-0.7040
August-October 19151.64112
August-October 1914-0.1062
August-October 1913-0.9134
August-October 19120.7087
August-October 19111.41107
August-October 1910-0.4747
August-October 1909-0.8835
August-October 1908-1.8211
August-October 19070.8992
August-October 1906-0.3254
August-October 19051.11102
August-October 19040.4277
August-October 19031.15104
August-October 19020.8289
August-October 1901-0.9832
August-October 1900-0.7538
August-October 1899-1.2224
August-October 18980.1870
August-October 1897-2.562
August-October 18962.87128
August-October 1895-1.8211

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