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
Pennsylvania, Climate Division 10 Palmer Z-Index
November-January
Period
Z-Index
Rank
(out of 130)
November 2024-January 2025-0.8023
November 2023-January 20240.3578
November 2022-January 20231.10110
November 2021-January 2022-0.5233
November 2020-January 2021-0.5530
November 2019-January 20200.5989
November 2018-January 20191.52121
November 2017-January 20180.82100
November 2016-January 20170.6291
November 2015-January 2016-0.5233
November 2014-January 2015-0.4139
November 2013-January 20140.92102
November 2012-January 20130.5384
November 2011-January 20121.48119
November 2010-January 20110.4281
November 2009-January 2010-0.2749
November 2008-January 20090.98106
November 2007-January 20081.45118
November 2006-January 20070.98106
November 2005-January 2006-0.1654
November 2004-January 20051.66123
November 2003-January 20040.93103
November 2002-January 2003-0.1056
November 2001-January 2002-0.7024
November 2000-January 2001-0.9718
November 1999-January 2000-0.4637
November 1998-January 1999-0.9321
November 1997-January 19981.23112
November 1996-January 19970.7898
November 1995-January 19960.90101
November 1994-January 19950.5588
November 1993-January 19941.16111
November 1992-January 19931.69124
November 1991-January 1992-1.974
November 1990-January 19911.50120
November 1989-January 1990-0.3146
November 1988-January 1989-0.5331
November 1987-January 1988-1.2412
November 1986-January 19870.1564
November 1985-January 19862.19125
November 1984-January 19850.5083
November 1983-January 19840.82100
November 1982-January 1983-0.4041
November 1981-January 19820.2070
November 1980-January 1981-1.4411
November 1979-January 1980-0.6426
November 1978-January 19790.7494
November 1977-January 19782.51128
November 1976-January 1977-1.538
November 1975-January 19760.5487
November 1974-January 19750.5487
November 1973-January 19740.2774
November 1972-January 19731.02107
November 1971-January 19720.3176
November 1970-January 19710.7795
November 1969-January 19700.2171
November 1968-January 19691.03108
November 1967-January 19680.3176
November 1966-January 1967-0.3842
November 1965-January 19660.1867
November 1964-January 19650.7898
November 1963-January 1964-0.3743
November 1962-January 1963-1.1914
November 1961-January 1962-0.4637
November 1960-January 1961-2.612
November 1959-January 19601.30117
November 1958-January 19590.3780
November 1957-January 1958-0.0258
November 1956-January 1957-0.3544
November 1955-January 1956-1.1515
November 1954-January 1955-0.2848
November 1953-January 1954-1.816
November 1952-January 1953-0.5331
November 1951-January 19522.62129
November 1950-January 19512.28126
November 1949-January 19500.2673
November 1948-January 19490.6592
November 1947-January 1948-1.0116
November 1946-January 19470.0762
November 1945-January 1946-0.6328
November 1944-January 1945-0.6426
November 1943-January 1944-1.835
November 1942-January 19431.30117
November 1941-January 1942-1.5210
November 1940-January 19410.0260
November 1939-January 1940-1.617
November 1938-January 1939-0.6725
November 1937-January 1938-0.4139
November 1936-January 19372.37127
November 1935-January 1936-0.5036
November 1934-January 1935-0.8322
November 1933-January 1934-0.1951
November 1932-January 1933-0.5929
November 1931-January 19320.7898
November 1930-January 1931-3.561
November 1929-January 19301.24114
November 1928-January 19290.1766
November 1927-January 19282.76130
November 1926-January 19270.3780
November 1925-January 1926-0.2749
November 1924-January 1925-0.9917
November 1923-January 19241.26115
November 1922-January 19230.1063
November 1921-January 19220.6090
November 1920-January 1921-0.3445
November 1919-January 1920-0.1951
November 1918-January 1919-0.9420
November 1917-January 1918-1.538
November 1916-January 1917-0.3047
November 1915-January 19160.5487
November 1914-January 19150.3477
November 1913-January 19140.0661
November 1912-January 19131.24114
November 1911-January 19120.4382
November 1910-January 19110.95104
November 1909-January 19100.1564
November 1908-January 1909-2.193
November 1907-January 19080.2070
November 1906-January 19071.04109
November 1905-January 19060.1968
November 1904-January 1905-0.9519
November 1903-January 19040.2673
November 1902-January 1903-0.0159
November 1901-January 19020.7093
November 1900-January 1901-0.1853
November 1899-January 1900-0.1355
November 1898-January 1899-0.0457
November 1897-January 18981.53122
November 1896-January 1897-1.2213
November 1895-January 1896-0.5135

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