Regional Rankings

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Please note, Palmer Indices are not available for NWS Regions. 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 England Basin

Average Temperature Rankings, May 1999

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
May 1999 1-Month	55.9°F (13.3°C)	52.2°F (11.2°C)	3.7°F (2.1°C)	115th Coolest	Coolest since: 1997	1917
May 1999 1-Month	55.9°F (13.3°C)	52.2°F (11.2°C)	3.7°F (2.1°C)	14th Warmest	Warmest since: 1998	1911, 2015
Apr–May 1999 2-Month	49.1°F (9.5°C)	46.3°F (7.9°C)	2.8°F (1.6°C)	118th Coolest	Coolest since: 1997	1917
	49.1°F (9.5°C)	46.3°F (7.9°C)	2.8°F (1.6°C)	11th Warmest	Warmest since: 1998	2010
	Ties: 2015
Mar–May 1999 3-Month	43.5°F (6.4°C)	40.4°F (4.7°C)	3.1°F (1.7°C)	120th Coolest	Coolest since: 1997	1926
	43.5°F (6.4°C)	40.4°F (4.7°C)	3.1°F (1.7°C)	9th Warmest	Warmest since: 1998	2010
	Ties: 2021, 2022
Feb–May 1999 4-Month	38.6°F (3.7°C)	34.8°F (1.6°C)	3.8°F (2.1°C)	123rd Coolest	Coolest since: 1997	1923
Feb–May 1999 4-Month	38.6°F (3.7°C)	34.8°F (1.6°C)	3.8°F (2.1°C)	6th Warmest	Warmest since: 1998	2010
Jan–May 1999 5-Month	34.5°F (1.4°C)	31.1°F (-0.5°C)	3.4°F (1.9°C)	119th Coolest	Coolest since: 1997	1923
	34.5°F (1.4°C)	31.1°F (-0.5°C)	3.4°F (1.9°C)	10th Warmest	Warmest since: 1998	2010
	Ties: 1991
Dec 1998–May 1999 6-Month	33.6°F (0.9°C)	29.5°F (-1.4°C)	4.1°F (2.3°C)	121st Coolest	Coolest since: 1997	1907, 1923
Dec 1998–May 1999 6-Month	33.6°F (0.9°C)	29.5°F (-1.4°C)	4.1°F (2.3°C)	7th Warmest	Warmest since: 1998	2012
Nov 1998–May 1999 7-Month	34.0°F (1.1°C)	30.3°F (-0.9°C)	3.7°F (2.0°C)	121st Coolest	Coolest since: 1997	1905
Nov 1998–May 1999 7-Month	34.0°F (1.1°C)	30.3°F (-0.9°C)	3.7°F (2.0°C)	7th Warmest	Warmest since: 1998	2012
Oct 1998–May 1999 8-Month	35.6°F (2.0°C)	32.2°F (0.1°C)	3.4°F (1.9°C)	120th Coolest	Coolest since: 1998	1905
	35.6°F (2.0°C)	32.2°F (0.1°C)	3.4°F (1.9°C)	8th Warmest	Warmest since: 1998	2012
	Ties: 1998, 2022
Sep 1998–May 1999 9-Month	38.2°F (3.4°C)	34.9°F (1.6°C)	3.3°F (1.8°C)	120th Coolest	Coolest since: 1998	1905
	38.2°F (3.4°C)	34.9°F (1.6°C)	3.3°F (1.8°C)	8th Warmest	Warmest to Date	2012
	Ties: 2017
Aug 1998–May 1999 10-Month	41.0°F (5.0°C)	37.9°F (3.3°C)	3.1°F (1.7°C)	119th Coolest	Coolest since: 1998	1905
	41.0°F (5.0°C)	37.9°F (3.3°C)	3.1°F (1.7°C)	9th Warmest	Warmest since: 1991	2012
	Ties: 1991
Jul 1998–May 1999 11-Month	43.4°F (6.3°C)	40.5°F (4.7°C)	2.9°F (1.6°C)	119th Coolest	Coolest since: 1998	1905
	43.4°F (6.3°C)	40.5°F (4.7°C)	2.9°F (1.6°C)	9th Warmest	Warmest since: 1991	2012
	Ties: 1991
Jun 1998–May 1999 12-Month	44.9°F (7.2°C)	42.2°F (5.7°C)	2.7°F (1.5°C)	117th Coolest	Coolest since: 1998	1905
	44.9°F (7.2°C)	42.2°F (5.7°C)	2.7°F (1.5°C)	11th Warmest	Warmest since: 1991	2012
	Ties: 2013
Dec 1997–May 1999 18-Month	41.4°F (5.2°C)	38.0°F (3.3°C)	3.4°F (1.9°C)	121st Coolest	Coolest since: 1998	1905
Dec 1997–May 1999 18-Month	41.4°F (5.2°C)	38.0°F (3.3°C)	3.4°F (1.9°C)	6th Warmest	Warmest to Date	2013, 2017
Jun 1997–May 1999 24-Month	44.7°F (7.1°C)	42.2°F (5.7°C)	2.5°F (1.4°C)	118th Coolest	Coolest since: 1998	1905
	44.7°F (7.1°C)	42.2°F (5.7°C)	2.5°F (1.4°C)	9th Warmest	Warmest to Date	2013
	Ties: 2011
Jun 1996–May 1999 36-Month	44.1°F (6.7°C)	42.2°F (5.7°C)	1.9°F (1.0°C)	113th Coolest	Coolest since: 1998	1906
	44.1°F (6.7°C)	42.2°F (5.7°C)	1.9°F (1.0°C)	13th Warmest	Warmest to Date	2012
	Ties: 2001, 2007, 2010
Jun 1995–May 1999 48-Month	43.7°F (6.5°C)	42.2°F (5.7°C)	1.5°F (0.8°C)	104th Coolest	Coolest since: 1998	1907
	43.7°F (6.5°C)	42.2°F (5.7°C)	1.5°F (0.8°C)	21st Warmest	Warmest since: 1954	2013
	Ties: 2003
Jun 1994–May 1999 60-Month	43.8°F (6.6°C)	42.2°F (5.7°C)	1.6°F (0.9°C)	104th Coolest	Coolest since: 1998	1908
	43.8°F (6.6°C)	42.2°F (5.7°C)	1.6°F (0.9°C)	20th Warmest	Warmest to Date	2013
	Ties: 2006

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Regional Rankings, published January 2023, retrieved on February 2, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/regional/rankings