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 2020

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PeriodValue1901-2000
Mean		AnomalyRank
(1895-2022)		Warmest/Coolest
Since		Record
December 2020
1-Month		33.1°F
(0.6°C)		28.1°F
(-2.2°C)		5.0°F
(2.8°C)		110th Coolest
Coolest since:
1989
19th Warmest
Warmest since:
2015
Nov–Dec 2020
2-Month		38.9°F
(3.8°C)		33.7°F
(0.9°C)		5.2°F
(2.9°C)		121st Coolest
Coolest since:
1917
8th Warmest
Warmest since:
2015
Oct–Dec 2020
3-Month		43.4°F
(6.3°C)		39.1°F
(3.9°C)		4.3°F
(2.4°C)		121st Coolest
Coolest since:
1917
8th Warmest
Warmest since:
2015
Sep–Dec 2020
4-Month		48.3°F
(9.1°C)		44.4°F
(6.9°C)		3.9°F
(2.2°C)		124th Coolest
Coolest since:
1917
5th Warmest
Warmest since:
2015
Ties: 2006
Aug–Dec 2020
5-Month		52.9°F
(11.6°C)		49.1°F
(9.5°C)		3.8°F
(2.1°C)		123rd Coolest
Coolest since:
1904
6th Warmest
Warmest since:
2015
Jul–Dec 2020
6-Month		56.6°F
(13.7°C)		52.5°F
(11.4°C)		4.1°F
(2.3°C)		124th Coolest
Coolest since:
1904
5th Warmest
Warmest since:
2015
Jun–Dec 2020
7-Month		58.1°F
(14.5°C)		54.2°F
(12.3°C)		3.9°F
(2.2°C)		126th Coolest
Coolest since:
1904
3rd Warmest
Warmest since:
2021
Ties: 2011
May–Dec 2020
8-Month		57.9°F
(14.4°C)		54.4°F
(12.4°C)		3.5°F
(2.0°C)		124th Coolest
Coolest since:
1917
5th Warmest
Warmest since:
2015
Apr–Dec 2020
9-Month		56.2°F
(13.4°C)		53.3°F
(11.8°C)		2.9°F
(1.6°C)		122nd Coolest
Coolest since:
1917
7th Warmest
Warmest since:
2015
Mar–Dec 2020
10-Month		54.6°F
(12.6°C)		51.4°F
(10.8°C)		3.2°F
(1.8°C)		123rd Coolest
Coolest since:
1917
6th Warmest
Warmest since:
2021
Feb–Dec 2020
11-Month		52.6°F
(11.4°C)		49.0°F
(9.4°C)		3.6°F
(2.0°C)		125th Coolest
Coolest since:
1917
4th Warmest
Warmest since:
2012
Ties: 2010
Jan–Dec 2020
12-Month		50.9°F
(10.5°C)		46.9°F
(8.3°C)		4.0°F
(2.2°C)		127th Coolest
Coolest since:
1904
2nd Warmest
Warmest since:
2012
Jul 2019–Dec 2020
18-Month		52.0°F
(11.1°C)		48.8°F
(9.3°C)		3.2°F
(1.8°C)		123rd Coolest
Coolest since:
1904
5th Warmest
Warmest since:
2012
Jan 2019–Dec 2020
24-Month		49.7°F
(9.8°C)		46.9°F
(8.3°C)		2.8°F
(1.5°C)		120th Coolest
Coolest since:
1905
8th Warmest
Warmest since:
2021
Jan 2018–Dec 2020
36-Month		49.6°F
(9.8°C)		46.9°F
(8.3°C)		2.7°F
(1.5°C)		121st Coolest
Coolest since:
1905
6th Warmest
Warmest since:
2022
Jan 2017–Dec 2020
48-Month		49.6°F
(9.8°C)		46.9°F
(8.3°C)		2.7°F
(1.5°C)		121st Coolest
Coolest since:
1907
5th Warmest
Warmest since:
2022
Jan 2016–Dec 2020
60-Month		49.8°F
(9.9°C)		46.9°F
(8.3°C)		2.9°F
(1.6°C)		122nd Coolest
Coolest since:
1907
3rd Warmest
Warmest to Date
2022

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