Regional Rankings

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Please note, Palmer Indices are not available for NWS Regions. Degree Days are not available for Great Plains, Souther Plains and Gulf Coast Rockies and Westward, River Basins, or Agricultural Belts. 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 2021

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Record Coolest

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
May 2021 1-Month	54.0°F (12.2°C)	52.2°F (11.2°C)	1.8°F (1.0°C)	92nd Coolest	Coolest since: 2020	1917
	54.0°F (12.2°C)	52.2°F (11.2°C)	1.8°F (1.0°C)	37th Warmest	Warmest since: 2018	1911, 2015
	Ties: 1953
Apr–May 2021 2-Month	49.2°F (9.6°C)	46.3°F (7.9°C)	2.9°F (1.7°C)	120th Coolest	Coolest since: 2020	1917
	49.2°F (9.6°C)	46.3°F (7.9°C)	2.9°F (1.7°C)	9th Warmest	Warmest since: 2012	2010
	Ties: 1941
Mar–May 2021 3-Month	43.5°F (6.4°C)	40.4°F (4.7°C)	3.1°F (1.7°C)	120th Coolest	Coolest since: 2020	1926
	43.5°F (6.4°C)	40.4°F (4.7°C)	3.1°F (1.7°C)	9th Warmest	Warmest since: 2012	2010
	Ties: 1999, 2022
Feb–May 2021 4-Month	37.9°F (3.3°C)	34.8°F (1.6°C)	3.1°F (1.7°C)	119th Coolest	Coolest since: 2020	1923
Feb–May 2021 4-Month	37.9°F (3.3°C)	34.8°F (1.6°C)	3.1°F (1.7°C)	10th Warmest	Warmest since: 2016	2010
Jan–May 2021 5-Month	35.0°F (1.7°C)	31.2°F (-0.4°C)	3.8°F (2.1°C)	124th Coolest	Coolest since: 2020	1923
	35.0°F (1.7°C)	31.2°F (-0.4°C)	3.8°F (2.1°C)	5th Warmest	Warmest since: 2016	2010
	Ties: 2016
Dec 2020–May 2021 6-Month	33.9°F (1.1°C)	29.6°F (-1.3°C)	4.3°F (2.4°C)	122nd Coolest	Coolest since: 2020	1907, 1923
Dec 2020–May 2021 6-Month	33.9°F (1.1°C)	29.6°F (-1.3°C)	4.3°F (2.4°C)	6th Warmest	Warmest since: 2016	2012
Nov 2020–May 2021 7-Month	34.7°F (1.5°C)	30.2°F (-1.0°C)	4.5°F (2.5°C)	124th Coolest	Coolest since: 2020	1905
	34.7°F (1.5°C)	30.2°F (-1.0°C)	4.5°F (2.5°C)	4th Warmest	Warmest since: 2016	2012
	Ties: 2002
Oct 2020–May 2021 8-Month	36.2°F (2.3°C)	32.2°F (0.1°C)	4.0°F (2.2°C)	123rd Coolest	Coolest since: 2020	1905
Oct 2020–May 2021 8-Month	36.2°F (2.3°C)	32.2°F (0.1°C)	4.0°F (2.2°C)	5th Warmest	Warmest since: 2016	2012
Sep 2020–May 2021 9-Month	38.7°F (3.7°C)	34.9°F (1.6°C)	3.8°F (2.1°C)	123rd Coolest	Coolest since: 2020	1905
Sep 2020–May 2021 9-Month	38.7°F (3.7°C)	34.9°F (1.6°C)	3.8°F (2.1°C)	5th Warmest	Warmest since: 2016	2012
Aug 2020–May 2021 10-Month	41.5°F (5.3°C)	37.9°F (3.3°C)	3.6°F (2.0°C)	123rd Coolest	Coolest since: 2020	1905
	41.5°F (5.3°C)	37.9°F (3.3°C)	3.6°F (2.0°C)	5th Warmest	Warmest since: 2016	2012
	Ties: 2022
Jul 2020–May 2021 11-Month	44.2°F (6.8°C)	40.5°F (4.7°C)	3.7°F (2.1°C)	125th Coolest	Coolest since: 2020	1905
Jul 2020–May 2021 11-Month	44.2°F (6.8°C)	40.5°F (4.7°C)	3.7°F (2.1°C)	3rd Warmest	Warmest since: 2016	2012
Jun 2020–May 2021 12-Month	45.8°F (7.7°C)	42.2°F (5.7°C)	3.6°F (2.0°C)	125th Coolest	Coolest since: 2020	1905
Jun 2020–May 2021 12-Month	45.8°F (7.7°C)	42.2°F (5.7°C)	3.6°F (2.0°C)	3rd Warmest	Warmest since: 2016	2012
Dec 2019–May 2021 18-Month	41.6°F (5.3°C)	38.0°F (3.3°C)	3.6°F (2.0°C)	123rd Coolest	Coolest since: 2020	1905
	41.6°F (5.3°C)	38.0°F (3.3°C)	3.6°F (2.0°C)	4th Warmest	Warmest since: 2017	2013
	Ties: 2012
Jun 2019–May 2021 24-Month	45.1°F (7.3°C)	42.2°F (5.7°C)	2.9°F (1.6°C)	122nd Coolest	Coolest since: 2020	1905
Jun 2019–May 2021 24-Month	45.1°F (7.3°C)	42.2°F (5.7°C)	2.9°F (1.6°C)	5th Warmest	Warmest since: 2017	2013
Jun 2018–May 2021 36-Month	44.5°F (6.9°C)	42.2°F (5.7°C)	2.3°F (1.2°C)	118th Coolest	Coolest since: 2020	1906
	44.5°F (6.9°C)	42.2°F (5.7°C)	2.3°F (1.2°C)	8th Warmest	Warmest since: 2018	2012
	Ties: 2008
Jun 2017–May 2021 48-Month	44.5°F (6.9°C)	42.2°F (5.7°C)	2.3°F (1.2°C)	118th Coolest	Coolest since: 2020	1907
	44.5°F (6.9°C)	42.2°F (5.7°C)	2.3°F (1.2°C)	7th Warmest	Warmest since: 2019	2013
	Ties: 2002
Jun 2016–May 2021 60-Month	44.6°F (7.0°C)	42.1°F (5.6°C)	2.5°F (1.4°C)	118th Coolest	Coolest since: 2019	1908
	44.6°F (7.0°C)	42.1°F (5.6°C)	2.5°F (1.4°C)	6th Warmest	Warmest since: 2020	2013
	Ties: 2016

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Regional Rankings, published March 2023, retrieved on March 21, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/regional/rankings