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, September 1963

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  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
September 1963
1-Month
53.40°F
(11.89°C)
51.90°F
(11.06°C)
1.50°F
(0.83°C)
103rd Coolest
Coolest since:
1918
26th Warmest
Warmest since:
2019
Ties: 1978
Aug–Sep 1963
2-Month
56.21°F
(13.45°C)
55.48°F
(13.04°C)
0.73°F
(0.41°C)
85th Coolest
Coolest since:
1974
44th Warmest
Warmest since:
2019
Jul–Sep 1963
3-Month
57.60°F
(14.22°C)
57.17°F
(13.98°C)
0.43°F
(0.24°C)
76th Coolest
Coolest since:
1924
53rd Warmest
Warmest since:
2022
Jun–Sep 1963
4-Month
57.19°F
(13.99°C)
56.78°F
(13.77°C)
0.41°F
(0.22°C)
76th Coolest
Coolest since:
1903
53rd Warmest
Warmest since:
2021
May–Sep 1963
5-Month
55.36°F
(12.98°C)
54.91°F
(12.73°C)
0.45°F
(0.25°C)
81st Coolest
Coolest since:
1907, 1924
48th Warmest
Warmest since:
2018
Apr–Sep 1963
6-Month
52.73°F
(11.52°C)
52.19°F
(11.22°C)
0.54°F
(0.30°C)
81st Coolest
Coolest since:
1907
48th Warmest
Warmest since:
2018
Mar–Sep 1963
7-Month
49.68°F
(9.82°C)
49.03°F
(9.46°C)
0.65°F
(0.36°C)
91st Coolest
Coolest since:
1917
38th Warmest
Warmest since:
2012
Feb–Sep 1963
8-Month
46.23°F
(7.91°C)
45.75°F
(7.64°C)
0.48°F
(0.27°C)
85th Coolest
Coolest since:
1917
44th Warmest
Warmest since:
2012
Jan–Sep 1963
9-Month
42.53°F
(5.85°C)
42.86°F
(6.03°C)
-0.33°F
(-0.18°C)
41st Coolest
Coolest since:
1917
88th Warmest
Warmest since:
2012
Dec 1962–Sep 1963
10-Month
40.55°F
(4.75°C)
40.84°F
(4.91°C)
-0.29°F
(-0.16°C)
36th Coolest
Coolest since:
1917
92nd Warmest
Warmest since:
2016
Ties: 1937, 1967, 1970
Nov 1962–Sep 1963
11-Month
39.80°F
(4.33°C)
39.92°F
(4.40°C)
-0.12°F
(-0.07°C)
48th Coolest
Coolest since:
1917
80th Warmest
Warmest since:
2016
Ties: 1966
Oct 1962–Sep 1963
12-Month
40.13°F
(4.52°C)
40.04°F
(4.47°C)
0.09°F
(0.05°C)
64th Coolest
Coolest since:
1917
64th Warmest
Warmest since:
2016
Apr 1962–Sep 1963
18-Month
44.09°F
(6.72°C)
44.09°F
(6.72°C)
0.00°F
(0.00°C)
55th Coolest
Coolest since:
1917
73rd Warmest
Warmest since:
2016
Oct 1961–Sep 1963
24-Month
39.72°F
(4.29°C)
40.04°F
(4.47°C)
-0.32°F
(-0.18°C)
35th Coolest
Coolest since:
1918
92nd Warmest
Warmest since:
2017
Ties: 1897
Oct 1960–Sep 1963
36-Month
39.82°F
(4.34°C)
40.02°F
(4.46°C)
-0.20°F
(-0.12°C)
40th Coolest
Coolest since:
1918
86th Warmest
Warmest since:
2017, 2018
Ties: 1916
Oct 1959–Sep 1963
48-Month
39.74°F
(4.30°C)
40.01°F
(4.45°C)
-0.27°F
(-0.15°C)
32nd Coolest
Coolest since:
1918
93rd Warmest
Warmest since:
2018
Ties: 1929, 1978
Oct 1958–Sep 1963
60-Month
39.80°F
(4.33°C)
40.00°F
(4.44°C)
-0.20°F
(-0.11°C)
36th Coolest
Coolest since:
1920
88th Warmest
Warmest since:
2019, 2020
Ties: 1909, 1910

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