Climate at a Glance | Divisional Rankings | National Centers for Environmental Information (NCEI)

Divisional Rankings

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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.

Washington, Climate Division 1

December 1995 Palmer Z-Index Rankings

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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2025)	Driest/Wettest Since	Record
December 1995 1-Month	0.10	-0.19	0.29	72nd Driest	Driest since: 1993	1985
December 1995 1-Month	0.10	-0.19	0.29	59th Wettest	Wettest since: 1994	1933
Nov–Dec 1995 2-Month	1.67	-0.03	1.70	116th Driest	Driest since: 1994	1976
Nov–Dec 1995 2-Month	1.67	-0.03	1.70	15th Wettest	Wettest since: 1975	1998
Oct–Dec 1995 3-Month	1.48	-0.04	1.52	122nd Driest	Driest since: 1994	2013
	1.48	-0.04	1.52	9th Wettest	Wettest since: 1990	1975
	Ties: 1915
Sep–Dec 1995 4-Month	0.98	-0.03	1.01	119th Driest	Driest since: 1994	1976
Sep–Dec 1995 4-Month	0.98	-0.03	1.01	12th Wettest	Wettest since: 1975	1933
Aug–Dec 1995 5-Month	1.16	-0.05	1.21	122nd Driest	Driest since: 1994	1929
Aug–Dec 1995 5-Month	1.16	-0.05	1.21	9th Wettest	Wettest since: 1977	1975
Jul–Dec 1995 6-Month	0.95	-0.08	1.03	121st Driest	Driest since: 1994	1930
	0.95	-0.08	1.03	10th Wettest	Wettest since: 1983	1975
	Ties: 1977
Jun–Dec 1995 7-Month	0.72	-0.06	0.78	113th Driest	Driest since: 1994	1944
Jun–Dec 1995 7-Month	0.72	-0.06	0.78	18th Wettest	Wettest since: 1983	1997
May–Dec 1995 8-Month	0.34	-0.04	0.38	95th Driest	Driest since: 1994	2023
May–Dec 1995 8-Month	0.34	-0.04	0.38	36th Wettest	Wettest since: 1990	1997
Apr–Dec 1995 9-Month	0.30	-0.04	0.34	96th Driest	Driest since: 1994	1935
	0.30	-0.04	0.34	35th Wettest	Wettest since: 1984	1997
	Ties: 1953
Mar–Dec 1995 10-Month	0.29	-0.05	0.34	93rd Driest	Driest since: 1994	1992
Mar–Dec 1995 10-Month	0.29	-0.05	0.34	38th Wettest	Wettest since: 1984	1997
Feb–Dec 1995 11-Month	0.29	-0.06	0.35	96th Driest	Driest since: 1994	1992
	0.29	-0.06	0.35	35th Wettest	Wettest since: 1984	1997
	Ties: 1903
Jan–Dec 1995 12-Month	0.25	-0.06	0.31	95th Driest	Driest since: 1994	2019
Jan–Dec 1995 12-Month	0.25	-0.06	0.31	36th Wettest	Wettest since: 1990	1997
Jul 1994–Dec 1995 18-Month	0.23	-0.06	0.29	95th Driest	Driest since: 1994	2023
Jul 1994–Dec 1995 18-Month	0.23	-0.06	0.29	35th Wettest	Wettest since: 1984	1997
Jan 1994–Dec 1995 24-Month	0.17	-0.05	0.22	88th Driest	Driest since: 1994	1930
Jan 1994–Dec 1995 24-Month	0.17	-0.05	0.22	42nd Wettest	Wettest since: 1991	1997
Jan 1993–Dec 1995 36-Month	-0.04	-0.05	0.01	69th Driest	Driest since: 1994	1930
Jan 1993–Dec 1995 36-Month	-0.04	-0.05	0.01	60th Wettest	Wettest since: 1985	1997
Jan 1992–Dec 1995 48-Month	-0.33	-0.05	-0.28	32nd Driest	Driest since: 1994	1925
Jan 1992–Dec 1995 48-Month	-0.33	-0.05	-0.28	96th Wettest	Wettest since: 1993	1999
Jan 1991–Dec 1995 60-Month	-0.23	-0.05	-0.18	38th Driest	Driest since: 1993	1926
	-0.23	-0.05	-0.18	89th Wettest	Wettest since: 1994	1903
	Ties: 1917

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published March 2025, retrieved on March 31, 2025 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/rankings

Climate at a Glance Divisional Rankings

Divisional Rankings

Washington, Climate Division 1

December 1995 Palmer Z-Index Rankings

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