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 1984

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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
September 1984
1-Month
50.25°F
(10.14°C)
51.90°F
(11.06°C)
-1.65°F
(-0.92°C)
10th Coolest
Coolest since:
1918
119th Warmest
Warmest since:
2019
Ties: 1956
Aug–Sep 1984
2-Month
55.32°F
(12.96°C)
55.47°F
(13.04°C)
-0.15°F
(-0.08°C)
43rd Coolest
Coolest since:
1974
86th Warmest
Warmest since:
2019
Ties: 1913, 1920
Jul–Sep 1984
3-Month
56.96°F
(13.87°C)
57.16°F
(13.98°C)
-0.20°F
(-0.11°C)
42nd Coolest
Coolest since:
1924
87th Warmest
Warmest since:
2022
Ties: 1948
Jun–Sep 1984
4-Month
56.74°F
(13.74°C)
56.78°F
(13.77°C)
-0.04°F
(-0.03°C)
47th Coolest
Coolest since:
1903
82nd Warmest
Warmest since:
2021
Ties: 1957
May–Sep 1984
5-Month
54.83°F
(12.68°C)
54.91°F
(12.73°C)
-0.08°F
(-0.05°C)
46th Coolest
Coolest since:
1907, 1924
83rd Warmest
Warmest since:
2018
Apr–Sep 1984
6-Month
52.02°F
(11.12°C)
52.20°F
(11.22°C)
-0.18°F
(-0.10°C)
45th Coolest
Coolest since:
1907
84th Warmest
Warmest since:
2018
Ties: 1962
Mar–Sep 1984
7-Month
48.76°F
(9.31°C)
49.03°F
(9.46°C)
-0.27°F
(-0.15°C)
38th Coolest
Coolest since:
1917
91st Warmest
Warmest since:
2012
Feb–Sep 1984
8-Month
45.90°F
(7.72°C)
45.74°F
(7.63°C)
0.16°F
(0.09°C)
68th Coolest
Coolest since:
1917
61st Warmest
Warmest since:
2012
Ties: 1922, 1985
Jan–Sep 1984
9-Month
42.88°F
(6.04°C)
42.86°F
(6.03°C)
0.02°F
(0.01°C)
60th Coolest
Coolest since:
1917
69th Warmest
Warmest since:
2012
Ties: 1930
Dec 1983–Sep 1984
10-Month
40.25°F
(4.58°C)
40.84°F
(4.91°C)
-0.59°F
(-0.33°C)
24th Coolest
Coolest since:
1917
104th Warmest
Warmest since:
2016
Ties: 1968
Nov 1983–Sep 1984
11-Month
39.61°F
(4.23°C)
39.91°F
(4.39°C)
-0.30°F
(-0.16°C)
35th Coolest
Coolest since:
1917
93rd Warmest
Warmest since:
2016
Oct 1983–Sep 1984
12-Month
39.92°F
(4.40°C)
40.04°F
(4.47°C)
-0.12°F
(-0.07°C)
49th Coolest
Coolest since:
1917
79th Warmest
Warmest since:
2016
Ties: 1966
Apr 1983–Sep 1984
18-Month
43.91°F
(6.62°C)
44.10°F
(6.72°C)
-0.19°F
(-0.10°C)
40th Coolest
Coolest since:
1917
88th Warmest
Warmest since:
2016
Ties: 1966
Oct 1982–Sep 1984
24-Month
40.54°F
(4.74°C)
40.04°F
(4.47°C)
0.50°F
(0.27°C)
84th Coolest
Coolest since:
1918
43rd Warmest
Warmest since:
2017
Oct 1981–Sep 1984
36-Month
40.29°F
(4.61°C)
40.03°F
(4.46°C)
0.26°F
(0.15°C)
70th Coolest
Coolest since:
1918
56th Warmest
Warmest since:
2017, 2018
Oct 1980–Sep 1984
48-Month
40.44°F
(4.69°C)
40.01°F
(4.45°C)
0.43°F
(0.24°C)
84th Coolest
Coolest since:
1918
41st Warmest
Warmest since:
2018
Ties: 1996
Oct 1979–Sep 1984
60-Month
40.44°F
(4.69°C)
40.00°F
(4.44°C)
0.44°F
(0.25°C)
83rd Coolest
Coolest since:
1920
41st Warmest
Warmest since:
2019, 2020
Ties: 1934

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