Statewide Rankings

Statewide Data Info
Please note, Degree Days and Palmer Indices are not available for Alaska. 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

Average Temperature Rankings, December 2019

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PeriodValue1901-2000
Mean		AnomalyRank
(1895-2022)		Warmest/Coolest
Since		Record
December 2019
1-Month		30.5°F
(-0.8°C)		28.1°F
(-2.2°C)		2.4°F
(1.4°C)		81st Coolest
Coolest since:
1989
48th Warmest
Warmest since:
2015
Ties: 1965
Nov–Dec 2019
2-Month		34.0°F
(1.1°C)		33.7°F
(0.9°C)		0.3°F
(0.2°C)		58th Coolest
Coolest since:
1917
71st Warmest
Warmest since:
2015
Ties: 1899, 1932, 1940, 1965, 1981
Oct–Dec 2019
3-Month		40.1°F
(4.5°C)		39.1°F
(3.9°C)		1.0°F
(0.6°C)		80th Coolest
Coolest since:
1917
49th Warmest
Warmest since:
2015
Ties: 2008, 2010, 2018
Sep–Dec 2019
4-Month		45.6°F
(7.6°C)		44.4°F
(6.9°C)		1.2°F
(0.7°C)		83rd Coolest
Coolest since:
1917
46th Warmest
Warmest since:
2015
Ties: 1954, 2009
Aug–Dec 2019
5-Month		50.4°F
(10.2°C)		49.1°F
(9.5°C)		1.3°F
(0.7°C)		91st Coolest
Coolest since:
1904
38th Warmest
Warmest since:
2015
Ties: 1900, 1920, 1938, 2004
Jul–Dec 2019
6-Month		54.3°F
(12.4°C)		52.5°F
(11.4°C)		1.8°F
(1.0°C)		103rd Coolest
Coolest since:
1904
26th Warmest
Warmest since:
2015
Ties: 1979, 2007
Jun–Dec 2019
7-Month		55.9°F
(13.3°C)		54.2°F
(12.3°C)		1.7°F
(1.0°C)		104th Coolest
Coolest since:
1904
25th Warmest
Warmest since:
2021
Ties: 1971, 2007
May–Dec 2019
8-Month		55.8°F
(13.2°C)		54.4°F
(12.4°C)		1.4°F
(0.8°C)		99th Coolest
Coolest since:
1917
30th Warmest
Warmest since:
2015
Ties: 1984, 2003
Apr–Dec 2019
9-Month		54.9°F
(12.7°C)		53.3°F
(11.8°C)		1.6°F
(0.9°C)		102nd Coolest
Coolest since:
1917
27th Warmest
Warmest since:
2015
Ties: 1941
Mar–Dec 2019
10-Month		52.8°F
(11.6°C)		51.4°F
(10.8°C)		1.4°F
(0.8°C)		102nd Coolest
Coolest since:
1917
27th Warmest
Warmest since:
2021
Feb–Dec 2019
11-Month		50.6°F
(10.3°C)		49.0°F
(9.4°C)		1.6°F
(0.9°C)		104th Coolest
Coolest since:
1917
25th Warmest
Warmest since:
2012
Jan–Dec 2019
12-Month		48.5°F
(9.2°C)		46.9°F
(8.3°C)		1.6°F
(0.9°C)		106th Coolest
Coolest since:
1904
23rd Warmest
Warmest since:
2012
Ties: 1983, 2015
Jul 2018–Dec 2019
18-Month		50.8°F
(10.4°C)		48.8°F
(9.3°C)		2.0°F
(1.1°C)		110th Coolest
Coolest since:
1904
18th Warmest
Warmest since:
2012
Ties: 2007
Jan 2018–Dec 2019
24-Month		49.0°F
(9.4°C)		46.9°F
(8.3°C)		2.1°F
(1.1°C)		113th Coolest
Coolest since:
1905
15th Warmest
Warmest since:
2021
Ties: 1953, 2010
Jan 2017–Dec 2019
36-Month		49.2°F
(9.6°C)		46.9°F
(8.3°C)		2.3°F
(1.3°C)		117th Coolest
Coolest since:
1905
10th Warmest
Warmest since:
2022
Ties: 1999, 2000
Jan 2016–Dec 2019
48-Month		49.5°F
(9.7°C)		46.9°F
(8.3°C)		2.6°F
(1.4°C)		120th Coolest
Coolest since:
1907
6th Warmest
Warmest since:
2022
Ties: 2018
Jan 2015–Dec 2019
60-Month		49.3°F
(9.6°C)		46.9°F
(8.3°C)		2.4°F
(1.3°C)		118th Coolest
Coolest since:
1907
7th Warmest
Warmest since:
2022
Ties: 2016

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