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 1989

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Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
October 1989
1-Month
41.16°F
(5.09°C)
41.41°F
(5.23°C)
-0.25°F
(-0.14°C)
47th Coolest
Coolest since:
1917
82nd Warmest
Warmest since:
1947
Ties: 2008
Sep–Oct 1989
2-Month
46.18°F
(7.88°C)
46.66°F
(8.14°C)
-0.48°F
(-0.26°C)
34th Coolest
Coolest since:
1917
95th Warmest
Warmest since:
2015
Ties: 1929
Aug–Oct 1989
3-Month
50.45°F
(10.25°C)
50.79°F
(10.44°C)
-0.34°F
(-0.19°C)
39th Coolest
Coolest since:
1917
90th Warmest
Warmest since:
2016
Ties: 1899
Jul–Oct 1989
4-Month
53.20°F
(11.78°C)
53.23°F
(11.79°C)
-0.03°F
(-0.01°C)
55th Coolest
Coolest since:
1976
74th Warmest
Warmest since:
2021
Ties: 1930
Jun–Oct 1989
5-Month
53.69°F
(12.05°C)
53.71°F
(12.06°C)
-0.02°F
(-0.01°C)
56th Coolest
Coolest since:
1917
73rd Warmest
Warmest since:
2021
May–Oct 1989
6-Month
52.69°F
(11.49°C)
52.66°F
(11.48°C)
0.03°F
(0.01°C)
51st Coolest
Coolest since:
1917
78th Warmest
Warmest since:
2018
Ties: 1957
Apr–Oct 1989
7-Month
50.85°F
(10.47°C)
50.65°F
(10.36°C)
0.20°F
(0.11°C)
66th Coolest
Coolest since:
1917
63rd Warmest
Warmest since:
2015
Mar–Oct 1989
8-Month
48.36°F
(9.09°C)
48.07°F
(8.93°C)
0.29°F
(0.16°C)
72nd Coolest
Coolest since:
1917
57th Warmest
Warmest since:
2016
Feb–Oct 1989
9-Month
45.08°F
(7.27°C)
45.27°F
(7.37°C)
-0.19°F
(-0.10°C)
47th Coolest
Coolest since:
1917
82nd Warmest
Warmest since:
2016
Jan–Oct 1989
10-Month
42.87°F
(6.04°C)
42.71°F
(5.95°C)
0.16°F
(0.09°C)
68th Coolest
Coolest since:
1917
61st Warmest
Warmest since:
2016
Dec 1988–Oct 1989
11-Month
41.01°F
(5.01°C)
40.89°F
(4.94°C)
0.12°F
(0.07°C)
69th Coolest
Coolest since:
1917
59th Warmest
Warmest since:
2016
Ties: 1988
Nov 1988–Oct 1989
12-Month
40.30°F
(4.61°C)
40.04°F
(4.47°C)
0.26°F
(0.14°C)
75th Coolest
Coolest since:
1917
53rd Warmest
Warmest since:
2016
May 1988–Oct 1989
18-Month
44.56°F
(6.98°C)
44.25°F
(6.81°C)
0.31°F
(0.17°C)
79th Coolest
Coolest since:
1917
49th Warmest
Warmest since:
2016
Ties: 1914, 1958
Nov 1987–Oct 1989
24-Month
40.33°F
(4.63°C)
40.04°F
(4.47°C)
0.29°F
(0.16°C)
76th Coolest
Coolest since:
1917, 1918
51st Warmest
Warmest since:
2017
Nov 1986–Oct 1989
36-Month
40.61°F
(4.78°C)
40.02°F
(4.46°C)
0.59°F
(0.32°C)
92nd Coolest
Coolest since:
1918
34th Warmest
Warmest since:
2017
Ties: 1934, 1996
Nov 1985–Oct 1989
48-Month
40.72°F
(4.84°C)
40.01°F
(4.45°C)
0.71°F
(0.39°C)
96th Coolest
Coolest since:
1918
29th Warmest
Warmest to Date
2018
Ties: 1991
Nov 1984–Oct 1989
60-Month
40.60°F
(4.78°C)
40.00°F
(4.44°C)
0.60°F
(0.34°C)
90th Coolest
Coolest since:
1920
34th Warmest
Warmest since:
2020
Ties: 1996

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