National Rankings

National Data Info
Palmer Drought Severity Index (PDSI), Palmer Hydrological Drought Index (PHDI), and Palmer Modified Drought Index (PMDI) are not offered for multiple-month time scales.

Contiguous U.S.

Maximum Temperature Rankings, December 1977

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  • Record Coolest
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  • Top 1/3
  • Top 1/10
  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2021)
Warmest/Coolest
Since
Record
December 1977
1-Month
43.25°F
(6.25°C)
42.76°F
(5.98°C)
0.49°F
(0.27°C)
64th Coolest
Coolest since:
1983
64th Warmest
Warmest since:
2021
Nov–Dec 1977
2-Month
48.32°F
(9.07°C)
47.74°F
(8.74°C)
0.58°F
(0.33°C)
72nd Coolest
Coolest since:
2000
56th Warmest
Warmest since:
1999
Ties: 1917
Oct–Dec 1977
3-Month
54.44°F
(12.47°C)
54.09°F
(12.27°C)
0.35°F
(0.20°C)
74th Coolest
Coolest since:
1972
54th Warmest
Warmest since:
1999
Ties: 1899
Sep–Dec 1977
4-Month
60.27°F
(15.71°C)
60.02°F
(15.57°C)
0.25°F
(0.14°C)
66th Coolest
Coolest since:
1972
62nd Warmest
Warmest since:
2021
Aug–Dec 1977
5-Month
65.02°F
(18.34°C)
65.04°F
(18.36°C)
-0.02°F
(-0.02°C)
60th Coolest
Coolest since:
1972
68th Warmest
Warmest since:
2021
Jul–Dec 1977
6-Month
68.77°F
(20.43°C)
68.65°F
(20.36°C)
0.12°F
(0.07°C)
67th Coolest
Coolest since:
1972
61st Warmest
Warmest since:
2021
Jun–Dec 1977
7-Month
70.88°F
(21.60°C)
70.46°F
(21.37°C)
0.42°F
(0.23°C)
82nd Coolest
Coolest since:
1972
46th Warmest
Warmest since:
2021
May–Dec 1977
8-Month
71.28°F
(21.82°C)
70.77°F
(21.54°C)
0.51°F
(0.28°C)
86th Coolest
Coolest since:
1972
42nd Warmest
Warmest since:
2021
Apr–Dec 1977
9-Month
70.87°F
(21.59°C)
69.96°F
(21.09°C)
0.91°F
(0.50°C)
97th Coolest
Coolest since:
1972
31st Warmest
Warmest since:
2012
Ties: 1994
Mar–Dec 1977
10-Month
69.28°F
(20.71°C)
68.27°F
(20.15°C)
1.01°F
(0.56°C)
97th Coolest
Coolest since:
1912
31st Warmest
Warmest since:
2012
Feb–Dec 1977
11-Month
67.39°F
(19.66°C)
66.13°F
(18.96°C)
1.26°F
(0.70°C)
106th Coolest
Coolest since:
1912
22nd Warmest
Warmest since:
2012
Jan–Dec 1977
12-Month
64.58°F
(18.10°C)
64.00°F
(17.78°C)
0.58°F
(0.32°C)
84th Coolest
Coolest since:
1912
44th Warmest
Warmest since:
2012
Jul 1976–Dec 1977
18-Month
65.47°F
(18.59°C)
65.55°F
(18.64°C)
-0.08°F
(-0.05°C)
48th Coolest
Coolest since:
1912
79th Warmest
Warmest since:
2012
Ties: 1967, 1986
Jan 1976–Dec 1977
24-Month
64.32°F
(17.96°C)
63.99°F
(17.77°C)
0.33°F
(0.19°C)
79th Coolest
Coolest since:
1913
48th Warmest
Warmest since:
2017
Jan 1975–Dec 1977
36-Month
63.96°F
(17.76°C)
63.98°F
(17.77°C)
-0.02°F
(-0.01°C)
59th Coolest
Coolest since:
1905
67th Warmest
Warmest since:
2017
Jan 1974–Dec 1977
48-Month
64.05°F
(17.81°C)
63.97°F
(17.76°C)
0.08°F
(0.05°C)
63rd Coolest
Coolest since:
1906
62nd Warmest
Warmest since:
2018
Jan 1973–Dec 1977
60-Month
64.00°F
(17.78°C)
63.96°F
(17.76°C)
0.04°F
(0.02°C)
63rd Coolest
Coolest since:
1907
61st Warmest
Warmest since:
2016
Ties: 1963

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