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

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Wyoming, Climate Division 8 Palmer Z-IndexOctober-December18952024190519151925193519451955196519751985199520052015-2.004.00-1.000.001.002.003.00-2.004.00-1.000.001.002.003.00ZingChart
Wyoming, Climate Division 8 Palmer Z-Index
October-December
Period
Z-Index
Rank
(out of 130)
October-December 2024-1.615
October-December 2023-0.3840
October-December 2022-0.8720
October-December 2021-0.4238
October-December 2020-1.189
October-December 20191.07104
October-December 20180.2674
October-December 2017-0.6431
October-December 2016-1.1012
October-December 20150.9296
October-December 20140.1971
October-December 20131.71123
October-December 2012-1.1310
October-December 20110.8894
October-December 20100.8290
October-December 20091.52118
October-December 2008-0.8819
October-December 20070.3876
October-December 2006-0.1454
October-December 2005-0.2648
October-December 2004-0.0261
October-December 2003-0.5933
October-December 2002-0.2746
October-December 2001-0.8422
October-December 20000.1166
October-December 1999-1.684
October-December 19982.47126
October-December 19970.1568
October-December 19960.5380
October-December 19950.7786
October-December 19941.53119
October-December 19931.63120
October-December 19920.2172
October-December 1991-0.1951
October-December 19900.0965
October-December 1989-0.8621
October-December 1988-1.238
October-December 19870.2674
October-December 19861.36111
October-December 19850.9898
October-December 19840.1770
October-December 19831.65122
October-December 19821.15106
October-December 1981-0.7226
October-December 1980-0.5933
October-December 19790.7987
October-December 19780.4579
October-December 1977-0.7127
October-December 1976-0.8918
October-December 1975-0.0360
October-December 1974-0.6630
October-December 19731.42114
October-December 19720.7584
October-December 1971-0.0659
October-December 19700.9195
October-December 19691.45115
October-December 1968-0.3344
October-December 19670.6983
October-December 1966-0.2648
October-December 1965-0.9616
October-December 1964-0.9915
October-December 1963-1.852
October-December 1962-0.5635
October-December 1961-0.2945
October-December 19600.1770
October-December 1959-0.2746
October-December 1958-0.3939
October-December 19571.01101
October-December 1956-0.1255
October-December 19550.0563
October-December 1954-0.6928
October-December 1953-1.1310
October-December 1952-0.4337
October-December 19511.24108
October-December 1950-1.0613
October-December 1949-0.0757
October-December 19480.4178
October-December 19471.42114
October-December 19461.30109
October-December 19450.0664
October-December 1944-0.1653
October-December 1943-0.6729
October-December 19422.69129
October-December 19410.8491
October-December 1940-1.0314
October-December 1939-1.396
October-December 1938-0.3840
October-December 19370.9497
October-December 19360.7786
October-December 1935-0.7824
October-December 1934-1.723
October-December 1933-1.891
October-December 1932-0.1752
October-December 19310.3876
October-December 19301.36111
October-December 19290.6582
October-December 19281.05102
October-December 19270.8290
October-December 19261.06103
October-December 19253.34130
October-December 19241.46116
October-December 19232.50127
October-December 19221.08105
October-December 19210.0262
October-December 19200.9999
October-December 19192.63128
October-December 1918-0.0757
October-December 1917-0.6032
October-December 19161.18107
October-December 19151.64121
October-December 1914-0.9616
October-December 19131.51117
October-December 19121.40112
October-December 19111.00100
October-December 1910-0.3840
October-December 19090.6281
October-December 19081.77124
October-December 1907-0.3840
October-December 19061.96125
October-December 1905-0.2050
October-December 1904-1.396
October-December 1903-0.7625
October-December 19020.8088
October-December 19010.1367
October-December 1900-0.8323
October-December 18990.8894
October-December 18980.4077
October-December 1897-0.1156
October-December 1896-0.5536
October-December 18950.8592

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