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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Idaho, Climate Division 9 Palmer Z-IndexOctober-December18952024190519151925193519451955196519751985199520052015-3.003.00-2.00-1.000.001.002.00-3.003.00-2.00-1.000.001.002.00ZingChart
Idaho, Climate Division 9 Palmer Z-Index
October-December
Period
Z-Index
Rank
(out of 130)
October-December 2024-0.7727
October-December 2023-0.5441
October-December 20220.6599
October-December 20210.76102
October-December 2020-1.2114
October-December 2019-0.5441
October-December 2018-0.1462
October-December 2017-0.4546
October-December 20162.07125
October-December 20150.2583
October-December 2014-0.6933
October-December 2013-1.398
October-December 20120.2481
October-December 20110.0874
October-December 20101.87123
October-December 2009-0.4050
October-December 20080.5696
October-December 20070.2380
October-December 20060.4992
October-December 20051.29112
October-December 20040.2985
October-December 2003-0.8026
October-December 2002-0.7430
October-December 2001-0.0865
October-December 2000-0.1661
October-December 1999-2.121
October-December 1998-0.1759
October-December 1997-0.5540
October-December 19961.67117
October-December 1995-0.1263
October-December 19941.31113
October-December 1993-0.6236
October-December 19920.2583
October-December 1991-0.4447
October-December 1990-1.1117
October-December 1989-0.9721
October-December 19880.3788
October-December 1987-0.9023
October-December 1986-1.398
October-December 19850.3486
October-December 19840.68100
October-December 19832.96130
October-December 19822.04124
October-December 19811.80122
October-December 1980-0.2257
October-December 1979-0.6137
October-December 1978-1.1416
October-December 1977-0.2656
October-December 1976-1.703
October-December 19750.4992
October-December 19740.5493
October-December 19731.09109
October-December 19720.92106
October-December 19712.11128
October-December 19701.72120
October-December 19690.0272
October-December 19680.87104
October-December 19670.0473
October-December 1966-0.4148
October-December 1965-0.6137
October-December 19642.77129
October-December 1963-0.0964
October-December 1962-1.615
October-December 19610.6198
October-December 1960-0.4050
October-December 1959-1.2912
October-December 1958-1.3311
October-December 1957-0.3253
October-December 19560.2380
October-December 19550.4190
October-December 1954-1.2613
October-December 1953-1.742
October-December 1952-0.8924
October-December 19510.2380
October-December 1950-0.7629
October-December 19490.0272
October-December 1948-0.0568
October-December 1947-0.2257
October-December 19461.67117
October-December 1945-0.4148
October-December 1944-0.0369
October-December 1943-0.6634
October-December 19421.21111
October-December 19410.91105
October-December 19400.5997
October-December 1939-1.516
October-December 19382.08127
October-December 19370.2177
October-December 1936-1.487
October-December 1935-0.3552
October-December 1934-0.6137
October-December 1933-1.664
October-December 1932-1.0718
October-December 19310.1476
October-December 19300.2784
October-December 1929-0.9522
October-December 19280.73101
October-December 19270.1476
October-December 1926-0.4645
October-December 19250.3989
October-December 19240.5595
October-December 19230.95107
October-December 1922-0.2755
October-December 1921-0.7132
October-December 19201.75121
October-December 1919-0.0568
October-December 1918-0.4944
October-December 1917-1.398
October-December 19161.04108
October-December 1915-0.7231
October-December 1914-1.0420
October-December 19130.5595
October-December 19121.71119
October-December 19111.63115
October-December 1910-0.1759
October-December 19091.58114
October-December 19081.15110
October-December 1907-0.0766
October-December 1906-0.0270
October-December 1905-0.5243
October-December 1904-1.0519
October-December 1903-0.2954
October-December 1902-0.6335
October-December 1901-0.7727
October-December 19000.3587
October-December 18990.85103
October-December 1898-1.1615
October-December 18972.08127
October-December 18961.71119
October-December 1895-0.8325

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