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 1997

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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 1997
1-Month
24.94°F
(-3.92°C)
22.60°F
(-5.22°C)
2.34°F
(1.30°C)
95th Coolest
Coolest since:
1909
33rd Warmest
Warmest since:
2015
Nov–Dec 1997
2-Month
27.91°F
(-2.27°C)
26.64°F
(-2.98°C)
1.27°F
(0.71°C)
93rd Coolest
Coolest since:
1976
35th Warmest
Warmest since:
2015
Oct–Dec 1997
3-Month
32.47°F
(0.26°C)
31.56°F
(-0.24°C)
0.91°F
(0.50°C)
84th Coolest
Coolest since:
1976
44th Warmest
Warmest since:
2015
Sep–Dec 1997
4-Month
37.82°F
(3.23°C)
36.64°F
(2.58°C)
1.18°F
(0.65°C)
102nd Coolest
Coolest since:
1976
26th Warmest
Warmest since:
2015
Ties: 1971
Aug–Dec 1997
5-Month
42.13°F
(5.63°C)
41.13°F
(5.07°C)
1.00°F
(0.56°C)
100th Coolest
Coolest since:
1976
28th Warmest
Warmest since:
2015
Ties: 1986
Jul–Dec 1997
6-Month
45.19°F
(7.33°C)
44.36°F
(6.87°C)
0.83°F
(0.46°C)
95th Coolest
Coolest since:
1976
33rd Warmest
Warmest since:
2021
Jun–Dec 1997
7-Month
46.76°F
(8.20°C)
45.97°F
(7.76°C)
0.79°F
(0.44°C)
93rd Coolest
Coolest since:
1976
35th Warmest
Warmest since:
2021
May–Dec 1997
8-Month
46.73°F
(8.18°C)
46.16°F
(7.87°C)
0.57°F
(0.31°C)
89th Coolest
Coolest since:
1976
39th Warmest
Warmest since:
2015
Apr–Dec 1997
9-Month
45.53°F
(7.52°C)
45.32°F
(7.40°C)
0.21°F
(0.12°C)
66th Coolest
Coolest since:
1917
62nd Warmest
Warmest since:
2015
Mar–Dec 1997
10-Month
44.20°F
(6.78°C)
43.78°F
(6.54°C)
0.42°F
(0.24°C)
81st Coolest
Coolest since:
1917
47th Warmest
Warmest since:
2015
Feb–Dec 1997
11-Month
42.55°F
(5.86°C)
41.88°F
(5.49°C)
0.67°F
(0.37°C)
90th Coolest
Coolest since:
1917
38th Warmest
Warmest since:
2016
Jan–Dec 1997
12-Month
40.68°F
(4.82°C)
40.04°F
(4.47°C)
0.64°F
(0.35°C)
87th Coolest
Coolest since:
1917
41st Warmest
Warmest since:
2016
Ties: 1983
Jul 1996–Dec 1997
18-Month
41.96°F
(5.53°C)
41.48°F
(5.27°C)
0.48°F
(0.26°C)
86th Coolest
Coolest since:
1917
41st Warmest
Warmest since:
2016
Jan 1996–Dec 1997
24-Month
40.36°F
(4.64°C)
40.03°F
(4.46°C)
0.33°F
(0.18°C)
74th Coolest
Coolest since:
1917
53rd Warmest
Warmest since:
2017
Jan 1995–Dec 1997
36-Month
40.56°F
(4.76°C)
40.02°F
(4.46°C)
0.54°F
(0.30°C)
87th Coolest
Coolest since:
1918
39th Warmest
Warmest since:
2017
Ties: 1954
Jan 1994–Dec 1997
48-Month
40.66°F
(4.81°C)
40.02°F
(4.46°C)
0.64°F
(0.35°C)
90th Coolest
Coolest since:
1919
35th Warmest
Warmest since:
2018
Jan 1993–Dec 1997
60-Month
40.49°F
(4.72°C)
40.00°F
(4.44°C)
0.49°F
(0.28°C)
86th Coolest
Coolest since:
1920
38th Warmest
Warmest since:
2019

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