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.

Massachusetts, Climate Division 2

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	-0.73	-0.02	-0.71	44th Driest	Driest since: 1995	1943
December 1997 1-Month	-0.73	-0.02	-0.71	87th Wettest	Wettest since: 1996	1901
Nov–Dec 1997 2-Month	0.30	-0.13	0.43	83rd Driest	Driest since: 1995	2001
	0.30	-0.13	0.43	48th Wettest	Wettest since: 1996	1972
	Ties: 1988
Oct–Dec 1997 3-Month	-0.39	-0.11	-0.28	53rd Driest	Driest since: 1994	2001
	-0.39	-0.11	-0.28	78th Wettest	Wettest since: 1996	2005
	Ties: 1960
Sep–Dec 1997 4-Month	-0.85	-0.09	-0.76	31st Driest	Driest since: 1984	1914
Sep–Dec 1997 4-Month	-0.85	-0.09	-0.76	100th Wettest	Wettest since: 1996	2018
Aug–Dec 1997 5-Month	-0.61	-0.06	-0.55	33rd Driest	Driest since: 1984	2001
	-0.61	-0.06	-0.55	98th Wettest	Wettest since: 1996	2011
	Ties: 1968
Jul–Dec 1997 6-Month	-0.68	-0.03	-0.65	33rd Driest	Driest since: 1984	1949
Jul–Dec 1997 6-Month	-0.68	-0.03	-0.65	98th Wettest	Wettest since: 1996	2018
Jun–Dec 1997 7-Month	-0.97	-0.04	-0.93	21st Driest	Driest since: 1980	1949
Jun–Dec 1997 7-Month	-0.97	-0.04	-0.93	110th Wettest	Wettest since: 1996	1938
May–Dec 1997 8-Month	-0.86	-0.06	-0.80	22nd Driest	Driest since: 1980	1964
May–Dec 1997 8-Month	-0.86	-0.06	-0.80	109th Wettest	Wettest since: 1996	1938
Apr–Dec 1997 9-Month	-0.59	-0.06	-0.53	31st Driest	Driest since: 1993	1964
Apr–Dec 1997 9-Month	-0.59	-0.06	-0.53	100th Wettest	Wettest since: 1996	1996
Mar–Dec 1997 10-Month	-0.47	-0.05	-0.42	36th Driest	Driest since: 1995	1965
Mar–Dec 1997 10-Month	-0.47	-0.05	-0.42	95th Wettest	Wettest since: 1996	1972
Feb–Dec 1997 11-Month	-0.57	-0.05	-0.52	25th Driest	Driest since: 1980	1965
	-0.57	-0.05	-0.52	106th Wettest	Wettest since: 1996	2008
	Ties: 1918
Jan–Dec 1997 12-Month	-0.54	-0.05	-0.49	23rd Driest	Driest since: 1980	1965
Jan–Dec 1997 12-Month	-0.54	-0.05	-0.49	108th Wettest	Wettest since: 1996	2008
Jul 1996–Dec 1997 18-Month	0.35	-0.05	0.40	86th Driest	Driest since: 1995	1965
Jul 1996–Dec 1997 18-Month	0.35	-0.05	0.40	44th Wettest	Wettest since: 1996	2019
Jan 1996–Dec 1997 24-Month	0.50	-0.05	0.55	112th Driest	Driest since: 1995	1965
Jan 1996–Dec 1997 24-Month	0.50	-0.05	0.55	18th Wettest	Wettest since: 1996	2009
Jan 1995–Dec 1997 36-Month	0.17	-0.05	0.22	80th Driest	Driest since: 1995	1965
Jan 1995–Dec 1997 36-Month	0.17	-0.05	0.22	49th Wettest	Wettest since: 1996	2010
Jan 1994–Dec 1997 48-Month	0.17	-0.05	0.22	76th Driest	Driest since: 1995	1966
	0.17	-0.05	0.22	52nd Wettest	Wettest since: 1996	2011
	Ties: 1953
Jan 1993–Dec 1997 60-Month	0.08	-0.05	0.13	66th Driest	Driest since: 1995	1966
Jan 1993–Dec 1997 60-Month	0.08	-0.05	0.13	61st Wettest	Wettest since: 1996	2009

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

Massachusetts, Climate Division 2

December 1997 Palmer Z-Index Rankings

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