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 2011 Palmer Z-Index Rankings

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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2025)	Driest/Wettest Since	Record
December 2011 1-Month	1.04	0.08	0.96	94th Driest	Driest since: 2010	1965
December 2011 1-Month	1.04	0.08	0.96	37th Wettest	Wettest since: 2009	2009
Nov–Dec 2011 2-Month	1.28	-0.08	1.36	106th Driest	Driest since: 2010	2021
Nov–Dec 2011 2-Month	1.28	-0.08	1.36	25th Wettest	Wettest since: 2009	2009
Oct–Dec 2011 3-Month	1.10	-0.12	1.22	110th Driest	Driest since: 2010	2001
Oct–Dec 2011 3-Month	1.10	-0.12	1.22	21st Wettest	Wettest since: 2009	2018
Sep–Dec 2011 4-Month	1.33	-0.10	1.43	115th Driest	Driest since: 2010	1933, 1998
Sep–Dec 2011 4-Month	1.33	-0.10	1.43	16th Wettest	Wettest since: 2009	2018
Aug–Dec 2011 5-Month	0.74	-0.06	0.80	99th Driest	Driest since: 2010	1941
Aug–Dec 2011 5-Month	0.74	-0.06	0.80	32nd Wettest	Wettest since: 2009	2018
Jul–Dec 2011 6-Month	0.25	-0.07	0.32	84th Driest	Driest since: 2010	1930
	0.25	-0.07	0.32	47th Wettest	Wettest since: 2009	2018
	Ties: 1962
Jun–Dec 2011 7-Month	0.04	-0.02	0.06	71st Driest	Driest since: 2010	1930
Jun–Dec 2011 7-Month	0.04	-0.02	0.06	60th Wettest	Wettest since: 2009	2018
May–Dec 2011 8-Month	0.10	-0.04	0.14	74th Driest	Driest since: 2010	1930
May–Dec 2011 8-Month	0.10	-0.04	0.14	57th Wettest	Wettest since: 2009	2018
Apr–Dec 2011 9-Month	0.19	-0.04	0.23	79th Driest	Driest since: 2010	1930
Apr–Dec 2011 9-Month	0.19	-0.04	0.23	52nd Wettest	Wettest since: 2009	2018
Mar–Dec 2011 10-Month	0.31	-0.03	0.34	91st Driest	Driest since: 2010	1930
	0.31	-0.03	0.34	40th Wettest	Wettest since: 2009	2018
	Ties: 1978
Feb–Dec 2011 11-Month	0.08	-0.03	0.11	72nd Driest	Driest since: 2010	1930
Feb–Dec 2011 11-Month	0.08	-0.03	0.11	59th Wettest	Wettest since: 2009	2003
Jan–Dec 2011 12-Month	-0.10	-0.01	-0.09	54th Driest	Driest since: 2010	1930
	-0.10	-0.01	-0.09	77th Wettest	Wettest since: 2009	2003
	Ties: 1910
Jul 2010–Dec 2011 18-Month	-0.21	-0.04	-0.17	47th Driest	Driest since: 2008	1931, 1999
Jul 2010–Dec 2011 18-Month	-0.21	-0.04	-0.17	83rd Wettest	Wettest since: 2010	2003
Jan 2010–Dec 2011 24-Month	-0.23	-0.01	-0.22	43rd Driest	Driest since: 2008	1931
	-0.23	-0.01	-0.22	87th Wettest	Wettest since: 2010	2004
	Ties: 1910, 1932, 1978
Jan 2009–Dec 2011 36-Month	0.17	-0.01	0.18	87th Driest	Driest since: 2010	1965
Jan 2009–Dec 2011 36-Month	0.17	-0.01	0.18	42nd Wettest	Wettest since: 2005	2020
Jan 2008–Dec 2011 48-Month	0.01	-0.01	0.02	72nd Driest	Driest since: 2010	1933
	0.01	-0.01	0.02	56th Wettest	Wettest since: 2006	2020
	Ties: 1977, 2003
Jan 2007–Dec 2011 60-Month	-0.20	-0.01	-0.19	26th Driest	Driest since: 2010	1967
Jan 2007–Dec 2011 60-Month	-0.20	-0.01	-0.19	101st Wettest	Wettest since: 2010	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 2011 Palmer Z-Index Rankings

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