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.

Minimum 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
(1895-2022)
Warmest/Coolest
Since
Record
December 1977
1-Month
23.31°F
(-4.83°C)
22.60°F
(-5.22°C)
0.71°F
(0.39°C)
66th Coolest
Coolest since:
1909
63rd Warmest
Warmest since:
2015
Nov–Dec 1977
2-Month
27.83°F
(-2.32°C)
26.64°F
(-2.98°C)
1.19°F
(0.66°C)
89th Coolest
Coolest since:
1976
40th Warmest
Warmest since:
2015
Ties: 1899
Oct–Dec 1977
3-Month
32.31°F
(0.17°C)
31.57°F
(-0.24°C)
0.74°F
(0.41°C)
82nd Coolest
Coolest since:
1976
47th Warmest
Warmest since:
2015
Sep–Dec 1977
4-Month
37.75°F
(3.19°C)
36.65°F
(2.58°C)
1.10°F
(0.61°C)
98th Coolest
Coolest since:
1976
31st Warmest
Warmest since:
2015
Aug–Dec 1977
5-Month
42.11°F
(5.62°C)
41.13°F
(5.07°C)
0.98°F
(0.55°C)
98th Coolest
Coolest since:
1976
31st Warmest
Warmest since:
2015
Ties: 2006
Jul–Dec 1977
6-Month
45.32°F
(7.40°C)
44.37°F
(6.87°C)
0.95°F
(0.53°C)
100th Coolest
Coolest since:
1976
29th Warmest
Warmest since:
2021
Jun–Dec 1977
7-Month
47.00°F
(8.33°C)
45.97°F
(7.76°C)
1.03°F
(0.57°C)
99th Coolest
Coolest since:
1976
30th Warmest
Warmest since:
2021
May–Dec 1977
8-Month
47.28°F
(8.49°C)
46.16°F
(7.87°C)
1.12°F
(0.62°C)
104th Coolest
Coolest since:
1976
25th Warmest
Warmest since:
2015
Apr–Dec 1977
9-Month
46.53°F
(8.07°C)
45.31°F
(7.39°C)
1.22°F
(0.68°C)
104th Coolest
Coolest since:
1917
25th Warmest
Warmest since:
2015
Mar–Dec 1977
10-Month
45.02°F
(7.23°C)
43.79°F
(6.55°C)
1.23°F
(0.68°C)
107th Coolest
Coolest since:
1917
22nd Warmest
Warmest since:
2015
Feb–Dec 1977
11-Month
43.07°F
(6.15°C)
41.88°F
(5.49°C)
1.19°F
(0.66°C)
105th Coolest
Coolest since:
1917
24th Warmest
Warmest since:
2016
Jan–Dec 1977
12-Month
40.52°F
(4.73°C)
40.03°F
(4.46°C)
0.49°F
(0.27°C)
81st Coolest
Coolest since:
1917
48th Warmest
Warmest since:
2016
Jul 1976–Dec 1977
18-Month
40.94°F
(4.97°C)
41.48°F
(5.27°C)
-0.54°F
(-0.30°C)
16th Coolest
Coolest since:
1917
112th Warmest
Warmest since:
2016
Ties: 1950
Jan 1976–Dec 1977
24-Month
39.70°F
(4.28°C)
40.04°F
(4.47°C)
-0.34°F
(-0.19°C)
36th Coolest
Coolest since:
1917
92nd Warmest
Warmest since:
2017
Jan 1975–Dec 1977
36-Month
39.72°F
(4.29°C)
40.02°F
(4.46°C)
-0.30°F
(-0.17°C)
34th Coolest
Coolest since:
1918
93rd Warmest
Warmest since:
2017
Ties: 1945, 1949, 1965
Jan 1974–Dec 1977
48-Month
39.84°F
(4.36°C)
40.01°F
(4.45°C)
-0.17°F
(-0.09°C)
45th Coolest
Coolest since:
1919
81st Warmest
Warmest since:
2018
Ties: 1901
Jan 1973–Dec 1977
60-Month
40.02°F
(4.46°C)
40.00°F
(4.44°C)
0.02°F
(0.02°C)
60th Coolest
Coolest since:
1920
65th Warmest
Warmest since:
2019

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