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 8 Palmer Z-Index
July-September
Period
Z-Index
Rank
(out of 130)
July-September 20240.99104
July-September 20230.1578
July-September 20220.1177
July-September 20210.0171
July-September 2020-1.1734
July-September 20190.8697
July-September 20180.6594
July-September 2017-1.2031
July-September 20162.02118
July-September 20150.3486
July-September 20140.97102
July-September 2013-0.9739
July-September 2012-1.6417
July-September 20111.21106
July-September 2010-0.1567
July-September 2009-0.2264
July-September 20082.78127
July-September 20070.0673
July-September 20061.32107
July-September 2005-1.0436
July-September 20040.0874
July-September 2003-0.6548
July-September 2002-1.5519
July-September 20010.8296
July-September 20001.92116
July-September 1999-1.4724
July-September 1998-1.6018
July-September 19970.5188
July-September 1996-1.2927
July-September 1995-0.6548
July-September 19942.08122
July-September 19932.69126
July-September 19922.14123
July-September 1991-0.0270
July-September 19900.6493
July-September 19890.6795
July-September 1988-0.7145
July-September 19872.03119
July-September 19864.87130
July-September 19850.1076
July-September 1984-0.9938
July-September 1983-0.7943
July-September 19821.03105
July-September 19810.94101
July-September 19802.97129
July-September 1979-0.6946
July-September 19781.67112
July-September 19770.8798
July-September 1976-1.2528
July-September 19751.95117
July-September 1974-1.3725
July-September 1973-0.5851
July-September 19721.83114
July-September 1971-0.2763
July-September 19701.63111
July-September 1969-0.8442
July-September 19680.1679
July-September 1967-0.5950
July-September 1966-0.9640
July-September 19650.99104
July-September 1964-0.4756
July-September 1963-0.5652
July-September 1962-1.4922
July-September 19610.93100
July-September 1960-0.4558
July-September 1959-1.0935
July-September 19580.2081
July-September 1957-0.1966
July-September 1956-1.3426
July-September 1955-1.2230
July-September 19540.2683
July-September 1953-1.5320
July-September 19520.5590
July-September 19511.38108
July-September 19500.4987
July-September 1949-0.0569
July-September 1948-2.047
July-September 1947-0.1268
July-September 1946-2.842
July-September 19450.6493
July-September 1944-1.6716
July-September 19430.3185
July-September 19422.17125
July-September 1941-0.4954
July-September 19400.2784
July-September 1939-0.4159
July-September 19380.5289
July-September 19370.1880
July-September 1936-0.3561
July-September 19350.0673
July-September 1934-1.7711
July-September 1933-0.8941
July-September 1932-0.4756
July-September 1931-1.8210
July-September 1930-3.661
July-September 1929-2.145
July-September 1928-0.3960
July-September 1927-0.4855
July-September 19260.6391
July-September 19250.2582
July-September 19240.9099
July-September 1923-0.2165
July-September 1922-1.1932
July-September 1921-1.5320
July-September 1920-1.7711
July-September 1919-1.7215
July-September 1918-1.998
July-September 1917-0.7844
July-September 1916-1.4922
July-September 19152.06121
July-September 1914-1.2329
July-September 1913-2.145
July-September 19122.86128
July-September 1911-0.6647
July-September 1910-1.1932
July-September 1909-0.3362
July-September 1908-1.7314
July-September 19071.56110
July-September 1906-0.5652
July-September 19051.77113
July-September 19040.1076
July-September 19032.05120
July-September 19021.87115
July-September 1901-1.7413
July-September 19001.56110
July-September 1899-1.0436
July-September 1898-1.939
July-September 1897-2.373
July-September 18962.16124
July-September 1895-2.244

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