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.

Virginia, Climate Division 3

December 1997 Palmer Z-Index Rankings

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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2025)	Driest/Wettest Since	Record
December 1997 1-Month	-0.22	0.08	-0.30	59th Driest	Driest since: 1995	1965
December 1997 1-Month	-0.22	0.08	-0.30	72nd Wettest	Wettest since: 1996	2009
Nov–Dec 1997 2-Month	0.22	-0.08	0.30	80th Driest	Driest since: 1995	2021
Nov–Dec 1997 2-Month	0.22	-0.08	0.30	51st Wettest	Wettest since: 1996	2009
Oct–Dec 1997 3-Month	-0.18	-0.12	-0.06	59th Driest	Driest since: 1994	2001
	-0.18	-0.12	-0.06	72nd Wettest	Wettest since: 1996	2018
	Ties: 1918
Sep–Dec 1997 4-Month	-0.11	-0.10	-0.01	61st Driest	Driest since: 1994	1933, 1998
Sep–Dec 1997 4-Month	-0.11	-0.10	-0.01	70th Wettest	Wettest since: 1996	2018
Aug–Dec 1997 5-Month	-0.45	-0.06	-0.39	49th Driest	Driest since: 1994	1941
Aug–Dec 1997 5-Month	-0.45	-0.06	-0.39	82nd Wettest	Wettest since: 1996	2018
Jul–Dec 1997 6-Month	-0.49	-0.07	-0.42	37th Driest	Driest since: 1993	1930
	-0.49	-0.07	-0.42	94th Wettest	Wettest since: 1996	2018
	Ties: 1955
Jun–Dec 1997 7-Month	-0.40	-0.02	-0.38	40th Driest	Driest since: 1994	1930
Jun–Dec 1997 7-Month	-0.40	-0.02	-0.38	91st Wettest	Wettest since: 1996	2018
May–Dec 1997 8-Month	-0.63	-0.04	-0.59	31st Driest	Driest since: 1993	1930
May–Dec 1997 8-Month	-0.63	-0.04	-0.59	100th Wettest	Wettest since: 1996	2018
Apr–Dec 1997 9-Month	-0.44	-0.04	-0.40	40th Driest	Driest since: 1994	1930
Apr–Dec 1997 9-Month	-0.44	-0.04	-0.40	91st Wettest	Wettest since: 1996	2018
Mar–Dec 1997 10-Month	-0.40	-0.03	-0.37	42nd Driest	Driest since: 1991	1930
Mar–Dec 1997 10-Month	-0.40	-0.03	-0.37	89th Wettest	Wettest since: 1996	2018
Feb–Dec 1997 11-Month	-0.40	-0.03	-0.37	38th Driest	Driest since: 1991	1930
	-0.40	-0.03	-0.37	93rd Wettest	Wettest since: 1996	2003
	Ties: 1956
Jan–Dec 1997 12-Month	-0.39	-0.01	-0.38	36th Driest	Driest since: 1991	1930
Jan–Dec 1997 12-Month	-0.39	-0.01	-0.38	95th Wettest	Wettest since: 1996	2003
Jul 1996–Dec 1997 18-Month	0.38	-0.04	0.42	104th Driest	Driest since: 1995	1931, 1999
Jul 1996–Dec 1997 18-Month	0.38	-0.04	0.42	26th Wettest	Wettest since: 1996	2003
Jan 1996–Dec 1997 24-Month	0.44	-0.01	0.45	110th Driest	Driest since: 1995	1931
	0.44	-0.01	0.45	20th Wettest	Wettest since: 1996	2004
	Ties: 1902, 1906, 1976
Jan 1995–Dec 1997 36-Month	0.44	-0.01	0.45	113th Driest	Driest since: 1995	1965
Jan 1995–Dec 1997 36-Month	0.44	-0.01	0.45	16th Wettest	Wettest since: 1996	2020
Jan 1994–Dec 1997 48-Month	0.36	-0.01	0.37	111th Driest	Driest since: 1995	1933
Jan 1994–Dec 1997 48-Month	0.36	-0.01	0.37	17th Wettest	Wettest since: 1996	2020
Jan 1993–Dec 1997 60-Month	0.31	-0.01	0.32	109th Driest	Driest since: 1995	1967
Jan 1993–Dec 1997 60-Month	0.31	-0.01	0.32	18th Wettest	Wettest since: 1996	2020

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

Virginia, Climate Division 3

December 1997 Palmer Z-Index Rankings

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