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, October 1978

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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
October 1978
1-Month
40.44°F
(4.69°C)
41.41°F
(5.23°C)
-0.97°F
(-0.54°C)
26th Coolest
Coolest since:
1917
103rd Warmest
Warmest since:
1947
Sep–Oct 1978
2-Month
46.92°F
(8.29°C)
46.66°F
(8.14°C)
0.26°F
(0.15°C)
70th Coolest
Coolest since:
1917
59th Warmest
Warmest since:
2015
Aug–Oct 1978
3-Month
50.87°F
(10.48°C)
50.79°F
(10.44°C)
0.08°F
(0.04°C)
61st Coolest
Coolest since:
1917
68th Warmest
Warmest since:
2016
Jul–Oct 1978
4-Month
53.33°F
(11.85°C)
53.23°F
(11.79°C)
0.10°F
(0.06°C)
61st Coolest
Coolest since:
1976
68th Warmest
Warmest since:
2021
Ties: 1981
Jun–Oct 1978
5-Month
53.81°F
(12.12°C)
53.70°F
(12.06°C)
0.11°F
(0.06°C)
62nd Coolest
Coolest since:
1917
67th Warmest
Warmest since:
2021
May–Oct 1978
6-Month
52.78°F
(11.54°C)
52.66°F
(11.48°C)
0.12°F
(0.06°C)
59th Coolest
Coolest since:
1917
70th Warmest
Warmest since:
2018
Ties: 1960, 1985
Apr–Oct 1978
7-Month
50.92°F
(10.51°C)
50.66°F
(10.37°C)
0.26°F
(0.14°C)
71st Coolest
Coolest since:
1917
58th Warmest
Warmest since:
2015
Mar–Oct 1978
8-Month
48.29°F
(9.05°C)
48.07°F
(8.93°C)
0.22°F
(0.12°C)
67th Coolest
Coolest since:
1917
62nd Warmest
Warmest since:
2016
Feb–Oct 1978
9-Month
44.94°F
(7.19°C)
45.26°F
(7.37°C)
-0.32°F
(-0.18°C)
39th Coolest
Coolest since:
1917
90th Warmest
Warmest since:
2016
Jan–Oct 1978
10-Month
42.13°F
(5.63°C)
42.71°F
(5.95°C)
-0.58°F
(-0.32°C)
21st Coolest
Coolest since:
1917
108th Warmest
Warmest since:
2016
Ties: 1905
Dec 1977–Oct 1978
11-Month
40.42°F
(4.68°C)
40.89°F
(4.94°C)
-0.47°F
(-0.26°C)
28th Coolest
Coolest since:
1917
100th Warmest
Warmest since:
2016
Ties: 1962, 1971
Nov 1977–Oct 1978
12-Month
39.75°F
(4.31°C)
40.04°F
(4.47°C)
-0.29°F
(-0.16°C)
37th Coolest
Coolest since:
1917
91st Warmest
Warmest since:
2016
Ties: 1910, 1949
May 1977–Oct 1978
18-Month
44.42°F
(6.90°C)
44.25°F
(6.81°C)
0.17°F
(0.09°C)
69th Coolest
Coolest since:
1917
59th Warmest
Warmest since:
2016
Nov 1976–Oct 1978
24-Month
39.69°F
(4.27°C)
40.03°F
(4.46°C)
-0.34°F
(-0.19°C)
30th Coolest
Coolest since:
1917, 1918
97th Warmest
Warmest since:
2017
Nov 1975–Oct 1978
36-Month
39.70°F
(4.28°C)
40.03°F
(4.46°C)
-0.33°F
(-0.18°C)
30th Coolest
Coolest since:
1918
96th Warmest
Warmest since:
2017
Nov 1974–Oct 1978
48-Month
39.73°F
(4.29°C)
40.01°F
(4.45°C)
-0.28°F
(-0.16°C)
32nd Coolest
Coolest since:
1918
93rd Warmest
Warmest since:
2018
Ties: 1953, 1972
Nov 1973–Oct 1978
60-Month
39.84°F
(4.36°C)
40.00°F
(4.44°C)
-0.16°F
(-0.08°C)
38th Coolest
Coolest since:
1920
86th Warmest
Warmest since:
2019, 2020
Ties: 1910, 1973

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