Climate at a Glance

City Rankings

Look up monthly rankings for 1-12, 18, 24, 36, 48, and 60-month time periods using the options below. Data and statistics are as of March 2021. For more information, please see Climatological Rankings.


Boston, Massachusetts

Average Temperature Rankings, December 1999

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  • Record Warmest
Period Value 1981-2010
Mean
Anomaly Rank
(1895-2020)
Warmest/Coolest
Since
Record
December 1999
1-Month
37.3°F
(2.9°C)
34.4°F
(1.3°C)
2.9°F
(1.6°C)
70th Coolest Coolest since: 1997 1989
16th Warmest Warmest since: 1998 2015
Nov–Dec 1999
2-Month
42.7°F
(5.9°C)
39.5°F
(4.2°C)
3.2°F
(1.7°C)
78th Coolest Coolest since: 1998 1989
8th Warmest Warmest since: 1994 2015
Ties: 1953
Oct–Dec 1999
3-Month
46.1°F
(7.8°C)
44.2°F
(6.8°C)
1.9°F
(1.0°C)
77th Coolest Coolest since: 1998 1976
9th Warmest Warmest since: 1994 2011, 2015
Sep–Dec 1999
4-Month
51.4°F
(10.8°C)
49.4°F
(9.7°C)
2.0°F
(1.1°C)
79th Coolest Coolest since: 1998 1976
7th Warmest Warmest since: 1990 2015
Ties: 1953
Aug–Dec 1999
5-Month
55.3°F
(12.9°C)
53.8°F
(12.1°C)
1.5°F
(0.8°C)
77th Coolest Coolest since: 1997 1976
9th Warmest Warmest since: 1998 2015
Ties: 1953, 2012
Jul–Dec 1999
6-Month
58.7°F
(14.8°C)
57.0°F
(13.9°C)
1.7°F
(0.9°C)
78th Coolest Coolest since: 1998 1976
8th Warmest Warmest since: 1990 2011
Ties: 2010
Jun–Dec 1999
7-Month
60.5°F
(15.8°C)
58.6°F
(14.8°C)
1.9°F
(1.0°C)
79th Coolest Coolest since: 1998 1962
7th Warmest Warmest to Date 2011
May–Dec 1999
8-Month
60.2°F
(15.7°C)
58.4°F
(14.7°C)
1.8°F
(1.0°C)
79th Coolest Coolest since: 1998 1962
7th Warmest Warmest to Date 2011, 2015
Ties: 2006
Apr–Dec 1999
9-Month
59.0°F
(15.0°C)
57.3°F
(14.1°C)
1.7°F
(0.9°C)
79th Coolest Coolest since: 1998 1940
7th Warmest Warmest to Date 2011
Ties: 2006, 2016
Mar–Dec 1999
10-Month
57.0°F
(13.9°C)
55.3°F
(12.9°C)
1.7°F
(1.0°C)
79th Coolest Coolest since: 1998 1940
7th Warmest Warmest to Date 2010, 2011
Ties: 2006
Feb–Dec 1999
11-Month
54.9°F
(12.7°C)
53.2°F
(11.8°C)
1.7°F
(0.9°C)
80th Coolest Coolest since: 1998 1967
6th Warmest Warmest to Date 2010, 2012
Jan–Dec 1999
12-Month
52.8°F
(11.6°C)
51.2°F
(10.7°C)
1.6°F
(0.9°C)
77th Coolest Coolest since: 1997 1940
9th Warmest Warmest since: 1998 2012, 2020
Jul 1998–Dec 1999
18-Month
54.7°F
(12.6°C)
53.1°F
(11.7°C)
1.6°F
(0.9°C)
76th Coolest Coolest since: 1998 1940
9th Warmest Warmest to Date 2012
Jan 1998–Dec 1999
24-Month
52.9°F
(11.6°C)
51.0°F
(10.6°C)
1.9°F
(1.0°C)
80th Coolest Coolest since: 1998 1940
5th Warmest Warmest to Date 2012
Ties: 2020
Jan 1997–Dec 1999
36-Month
52.2°F
(11.2°C)
51.0°F
(10.6°C)
1.2°F
(0.6°C)
75th Coolest Coolest since: 1998 1940
9th Warmest Warmest to Date 2012
Ties: 2010, 2019
Jan 1996–Dec 1999
48-Month
51.8°F
(11.0°C)
50.9°F
(10.5°C)
0.9°F
(0.5°C)
67th Coolest Coolest since: 1998 1942, 1943
16th Warmest Warmest to Date 2013
Ties: 2000
Jan 1995–Dec 1999
60-Month
51.6°F
(10.9°C)
50.9°F
(10.5°C)
0.7°F
(0.4°C)
65th Coolest Coolest since: 1998 1940, 1943
17th Warmest Warmest to Date 2014, 2020
Ties: 2000, 2006

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: City Time Series, published April 2021, retrieved on April 10, 2021 from https://www.ncdc.noaa.gov/cag/