Climate at a Glance

National 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 October 2021. For more information, please see Climatological Rankings.


Contiguous U.S.

Maximum Temperature Rankings, December 1999

View Period (Months):All1234567891011121824364860
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  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2020)
Warmest/Coolest
Since
Record
December 1999
1-Month
47.10°F
(8.39°C)
42.76°F
(5.98°C)
4.34°F
(2.41°C)
120th Coolest Coolest since: 1998 1983
7th Warmest Warmest since: 1979 1939
Ties: 2006
Nov–Dec 1999
2-Month
54.13°F
(12.29°C)
47.73°F
(8.74°C)
6.40°F
(3.55°C)
126th Coolest Coolest since: 1998 2000
1st Warmest Warmest to Date 1999
Oct–Dec 1999
3-Month
59.05°F
(15.03°C)
54.09°F
(12.27°C)
4.96°F
(2.76°C)
126th Coolest Coolest since: 1998 1972
1st Warmest Warmest to Date 1999
Sep–Dec 1999
4-Month
63.77°F
(17.65°C)
60.02°F
(15.57°C)
3.75°F
(2.08°C)
126th Coolest Coolest since: 1998 1972
1st Warmest Warmest to Date 1999
Aug–Dec 1999
5-Month
68.20°F
(20.11°C)
65.04°F
(18.36°C)
3.16°F
(1.75°C)
126th Coolest Coolest since: 1998 1972
1st Warmest Warmest to Date 1999
Jul–Dec 1999
6-Month
71.31°F
(21.84°C)
68.65°F
(20.36°C)
2.66°F
(1.48°C)
125th Coolest Coolest since: 1998 1972
2nd Warmest Warmest since: 1939 1939
Jun–Dec 1999
7-Month
72.61°F
(22.56°C)
70.47°F
(21.37°C)
2.14°F
(1.19°C)
120th Coolest Coolest since: 1998 1972
7th Warmest Warmest since: 1939 1933
May–Dec 1999
8-Month
72.62°F
(22.57°C)
70.77°F
(21.54°C)
1.85°F
(1.03°C)
117th Coolest Coolest since: 1998 1972
10th Warmest Warmest since: 1939 1934
Apr–Dec 1999
9-Month
71.60°F
(22.00°C)
69.96°F
(21.09°C)
1.64°F
(0.91°C)
115th Coolest Coolest since: 1998 1972
12th Warmest Warmest since: 1939 2012
Mar–Dec 1999
10-Month
69.91°F
(21.06°C)
68.26°F
(20.14°C)
1.65°F
(0.92°C)
115th Coolest Coolest since: 1998 1912
12th Warmest Warmest since: 1939 2012
Feb–Dec 1999
11-Month
68.17°F
(20.09°C)
66.13°F
(18.96°C)
2.04°F
(1.13°C)
121st Coolest Coolest since: 1998 1912
6th Warmest Warmest since: 1934 2012
Jan–Dec 1999
12-Month
66.20°F
(19.00°C)
64.00°F
(17.78°C)
2.20°F
(1.22°C)
120th Coolest Coolest since: 1998 1912
7th Warmest Warmest since: 1934 2012
Jul 1998–Dec 1999
18-Month
67.72°F
(19.84°C)
65.55°F
(18.64°C)
2.17°F
(1.20°C)
120th Coolest Coolest since: 1998 1912
6th Warmest Warmest since: 1934 2012
Jan 1998–Dec 1999
24-Month
65.91°F
(18.84°C)
63.99°F
(17.77°C)
1.92°F
(1.07°C)
118th Coolest Coolest since: 1998 1913
8th Warmest Warmest since: 1934 2017
Jan 1997–Dec 1999
36-Month
65.18°F
(18.43°C)
63.98°F
(17.77°C)
1.20°F
(0.66°C)
108th Coolest Coolest since: 1998 1905
17th Warmest Warmest since: 1954 2017
Jan 1996–Dec 1999
48-Month
64.81°F
(18.23°C)
63.97°F
(17.76°C)
0.84°F
(0.47°C)
95th Coolest Coolest since: 1998 1906
29th Warmest Warmest since: 1991 2018
Jan 1995–Dec 1999
60-Month
64.72°F
(18.18°C)
63.96°F
(17.76°C)
0.76°F
(0.42°C)
91st Coolest Coolest since: 1998 1907
32nd Warmest Warmest since: 1992 2016

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: National Time Series, published November 2021, retrieved on November 30, 2021 from https://www.ncdc.noaa.gov/cag/