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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.

New Hampshire, Climate Division 1

December 1978 Palmer Z-Index Rankings

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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2025)	Driest/Wettest Since	Record
December 1978 1-Month	-0.43	-0.23	-0.20	56th Driest	Driest since: 1976	1896
December 1978 1-Month	-0.43	-0.23	-0.20	75th Wettest	Wettest since: 1977	1973
Nov–Dec 1978 2-Month	-1.57	-0.33	-1.24	18th Driest	Driest since: 1960	1904
Nov–Dec 1978 2-Month	-1.57	-0.33	-1.24	113th Wettest	Wettest since: 1977	1983
Oct–Dec 1978 3-Month	-1.21	-0.23	-0.98	21st Driest	Driest since: 1961	1914
Oct–Dec 1978 3-Month	-1.21	-0.23	-0.98	110th Wettest	Wettest since: 1977	2005
Sep–Dec 1978 4-Month	-1.46	-0.15	-1.31	12th Driest	Driest since: 1961	1908
Sep–Dec 1978 4-Month	-1.46	-0.15	-1.31	119th Wettest	Wettest since: 1977	2005
Aug–Dec 1978 5-Month	-1.48	-0.12	-1.36	9th Driest	Driest since: 1961	1908
Aug–Dec 1978 5-Month	-1.48	-0.12	-1.36	122nd Wettest	Wettest since: 1977	2005
Jul–Dec 1978 6-Month	-1.58	-0.10	-1.48	5th Driest	Driest since: 1947	1908
Jul–Dec 1978 6-Month	-1.58	-0.10	-1.48	126th Wettest	Wettest since: 1977	2005, 2008
Jun–Dec 1978 7-Month	-0.83	-0.10	-0.73	23rd Driest	Driest since: 1963	1908
Jun–Dec 1978 7-Month	-0.83	-0.10	-0.73	108th Wettest	Wettest since: 1977	2008
May–Dec 1978 8-Month	-0.95	-0.10	-0.85	16th Driest	Driest since: 1961	1908
	-0.95	-0.10	-0.85	115th Wettest	Wettest since: 1977	1954
	Ties: 1919
Apr–Dec 1978 9-Month	-0.82	-0.10	-0.72	18th Driest	Driest since: 1963	2001
Apr–Dec 1978 9-Month	-0.82	-0.10	-0.72	113th Wettest	Wettest since: 1977	1954
Mar–Dec 1978 10-Month	-0.80	-0.08	-0.72	13th Driest	Driest since: 1965	1908
Mar–Dec 1978 10-Month	-0.80	-0.08	-0.72	118th Wettest	Wettest since: 1977	1954
Feb–Dec 1978 11-Month	-0.93	-0.08	-0.85	9th Driest	Driest since: 1949	1921
Feb–Dec 1978 11-Month	-0.93	-0.08	-0.85	122nd Wettest	Wettest since: 1977	1954
Jan–Dec 1978 12-Month	-0.44	-0.07	-0.37	32nd Driest	Driest since: 1970	1921
Jan–Dec 1978 12-Month	-0.44	-0.07	-0.37	99th Wettest	Wettest since: 1977	1954
Jul 1977–Dec 1978 18-Month	0.04	-0.08	0.12	69th Driest	Driest since: 1971	1948
Jul 1977–Dec 1978 18-Month	0.04	-0.08	0.12	61st Wettest	Wettest since: 1977	2008
Jan 1977–Dec 1978 24-Month	0.00	-0.07	0.07	66th Driest	Driest since: 1971	1949
Jan 1977–Dec 1978 24-Month	0.00	-0.07	0.07	64th Wettest	Wettest since: 1977	2006
Jan 1976–Dec 1978 36-Month	0.36	-0.08	0.44	105th Driest	Driest since: 1972	1949
Jan 1976–Dec 1978 36-Month	0.36	-0.08	0.44	24th Wettest	Wettest since: 1977	2008
Jan 1975–Dec 1978 48-Month	0.26	-0.08	0.34	102nd Driest	Driest since: 1973	1911
Jan 1975–Dec 1978 48-Month	0.26	-0.08	0.34	26th Wettest	Wettest since: 1977	2008
Jan 1974–Dec 1978 60-Month	0.37	-0.08	0.45	112th Driest	Driest since: 1974	1967
Jan 1974–Dec 1978 60-Month	0.37	-0.08	0.45	15th Wettest	Wettest since: 1977	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

New Hampshire, Climate Division 1

December 1978 Palmer Z-Index Rankings

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