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 1898

View Period (Months):
Download: csv json xml
  • Record Coolest
  • Bottom 1/10
  • Bottom 1/3
  • Normal
  • Top 1/3
  • Top 1/10
  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
September 1898
1-Month
52.23°F
(11.24°C)
51.90°F
(11.06°C)
0.33°F
(0.18°C)
66th Coolest
Coolest since:
1918
63rd Warmest
Warmest since:
2019
Ties: 1972
Aug–Sep 1898
2-Month
56.11°F
(13.39°C)
55.48°F
(13.04°C)
0.63°F
(0.35°C)
82nd Coolest
Coolest since:
1974
47th Warmest
Warmest to Date
2019
Jul–Sep 1898
3-Month
57.51°F
(14.17°C)
57.16°F
(13.98°C)
0.35°F
(0.19°C)
72nd Coolest
Coolest since:
1924
57th Warmest
Warmest to Date
2022
Ties: 1922
Jun–Sep 1898
4-Month
57.30°F
(14.06°C)
56.78°F
(13.77°C)
0.52°F
(0.29°C)
82nd Coolest
Coolest since:
1903
47th Warmest
Warmest to Date
2021
Ties: 1995, 1996
May–Sep 1898
5-Month
55.40°F
(13.00°C)
54.91°F
(12.73°C)
0.49°F
(0.27°C)
82nd Coolest
Coolest since:
1907, 1924
47th Warmest
Warmest since:
2018
Apr–Sep 1898
6-Month
52.51°F
(11.39°C)
52.20°F
(11.22°C)
0.31°F
(0.17°C)
70th Coolest
Coolest since:
1907
59th Warmest
Warmest since:
2018
Mar–Sep 1898
7-Month
49.26°F
(9.59°C)
49.02°F
(9.46°C)
0.24°F
(0.13°C)
70th Coolest
Coolest since:
1917
59th Warmest
Warmest to Date
2012
Feb–Sep 1898
8-Month
46.10°F
(7.83°C)
45.75°F
(7.64°C)
0.35°F
(0.19°C)
78th Coolest
Coolest since:
1917
51st Warmest
Warmest to Date
2012
Jan–Sep 1898
9-Month
43.26°F
(6.26°C)
42.86°F
(6.03°C)
0.40°F
(0.23°C)
79th Coolest
Coolest since:
1917
50th Warmest
Warmest since:
2012
Ties: 1977
Dec 1897–Sep 1898
10-Month
41.02°F
(5.01°C)
40.84°F
(4.91°C)
0.18°F
(0.10°C)
73rd Coolest
Coolest since:
1917
55th Warmest
Warmest since:
2016
Ties: 1988
Nov 1897–Sep 1898
11-Month
39.97°F
(4.43°C)
39.91°F
(4.39°C)
0.06°F
(0.04°C)
68th Coolest
Coolest since:
1917
60th Warmest
Warmest to Date
2016
Ties: 1996
Oct 1897–Sep 1898
12-Month
40.19°F
(4.55°C)
40.05°F
(4.47°C)
0.14°F
(0.08°C)
68th Coolest
Coolest since:
1917
60th Warmest
Warmest to Date
2016
Ties: 1988
Apr 1897–Sep 1898
18-Month
44.19°F
(6.77°C)
44.10°F
(6.72°C)
0.09°F
(0.05°C)
64th Coolest
Coolest since:
1917
64th Warmest
Warmest to Date
2016
Oct 1896–Sep 1898
24-Month
39.96°F
(4.42°C)
40.04°F
(4.47°C)
-0.08°F
(-0.05°C)
53rd Coolest
Coolest since:
1918
74th Warmest
Warmest to Date
2017
Oct 1895–Sep 1898
36-Month
39.87°F
(4.37°C)
40.02°F
(4.46°C)
-0.15°F
(-0.09°C)
46th Coolest
Coolest since:
1918
80th Warmest
Warmest to Date
2017, 2018

Citing This Page