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Boston, Massachusetts

Average Temperature Rankings, December 1939

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Period Value 1991-2020
Mean
Anomaly Rank
(1936-2022)
Warmest/Coolest
Since
Record
December 1939
1-Month
32.9°F
(0.5°C)
35.9°F
(2.2°C)
-3.0°F
(-1.7°C)
30th Coolest
Coolest since:
1989
58th Warmest
Warmest since:
2015
Nov–Dec 1939
2-Month
36.3°F
(2.4°C)
40.4°F
(4.7°C)
-4.1°F
(-2.3°C)
11th Coolest
Coolest to Date
1989
77th Warmest
Warmest since:
2015
Ties: 1944, 1945
Oct–Dec 1939
3-Month
42.1°F
(5.6°C)
45.2°F
(7.3°C)
-3.1°F
(-1.7°C)
15th Coolest
Coolest since:
1989
73rd Warmest
Warmest since:
2011, 2015
Sep–Dec 1939
4-Month
47.7°F
(8.7°C)
50.4°F
(10.2°C)
-2.7°F
(-1.5°C)
16th Coolest
Coolest since:
1989
72nd Warmest
Warmest since:
2015
Ties: 1944
Aug–Dec 1939
5-Month
52.9°F
(11.6°C)
54.9°F
(12.7°C)
-2.0°F
(-1.1°C)
23rd Coolest
Coolest since:
1989
65th Warmest
Warmest since:
2015
Ties: 1995
Jul–Dec 1939
6-Month
56.1°F
(13.4°C)
58.1°F
(14.5°C)
-2.0°F
(-1.1°C)
20th Coolest
Coolest since:
1962
68th Warmest
Warmest since:
2011
Ties: 1937
Jun–Dec 1939
7-Month
57.5°F
(14.2°C)
59.5°F
(15.3°C)
-2.0°F
(-1.1°C)
18th Coolest
Coolest since:
1962
70th Warmest
Warmest since:
2011
May–Dec 1939
8-Month
57.4°F
(14.1°C)
59.4°F
(15.2°C)
-2.0°F
(-1.1°C)
14th Coolest
Coolest since:
1940, 1962
74th Warmest
Warmest since:
2011, 2015
Ties: 1936, 1980
Apr–Dec 1939
9-Month
55.9°F
(13.3°C)
58.2°F
(14.6°C)
-2.3°F
(-1.3°C)
8th Coolest
Coolest to Date
1940
80th Warmest
Warmest since:
2011
Mar–Dec 1939
10-Month
53.6°F
(12.0°C)
56.2°F
(13.4°C)
-2.6°F
(-1.4°C)
6th Coolest
Coolest to Date
1940
82nd Warmest
Warmest since:
2010, 2011, 2021, 2022
Feb–Dec 1939
11-Month
51.6°F
(10.9°C)
54.0°F
(12.2°C)
-2.4°F
(-1.3°C)
9th Coolest
Coolest to Date
1967
79th Warmest
Warmest since:
2010, 2012, 2022
Jan–Dec 1939
12-Month
49.5°F
(9.7°C)
52.0°F
(11.1°C)
-2.5°F
(-1.4°C)
4th Coolest
Coolest to Date
1940
84th Warmest
Warmest since:
2012
Ties: 1978, 1992
Jul 1938–Dec 1939
18-Month
52.0°F
(11.1°C)
54.0°F
(12.2°C)
-2.0°F
(-1.1°C)
7th Coolest
Coolest to Date
1940
80th Warmest
Warmest since:
2012
Jan 1938–Dec 1939
24-Month
50.2°F
(10.1°C)
52.0°F
(11.1°C)
-1.8°F
(-1.0°C)
9th Coolest
Coolest to Date
1940
78th Warmest
Warmest since:
2021
Ties: 1987, 1993
Jan 1937–Dec 1939
36-Month
50.4°F
(10.2°C)
52.0°F
(11.1°C)
-1.6°F
(-0.9°C)
16th Coolest
Coolest to Date
1940, 1941
70th Warmest
Warmest since:
2012, 2022
Ties: 1962, 1988
Jan 1936–Dec 1939
48-Month
50.2°F
(10.1°C)
52.0°F
(11.1°C)
-1.8°F
(-1.0°C)
5th Coolest
Coolest to Date
1942, 1943
80th Warmest
Warmest to Date
2013, 2022
Ties: 1965, 1968, 1970

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