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 1998

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  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
September 1998
1-Month
56.01°F
(13.34°C)
51.90°F
(11.06°C)
4.11°F
(2.28°C)
127th Coolest
Coolest since:
1918
2nd Warmest
Warmest to Date
2019
Aug–Sep 1998
2-Month
58.54°F
(14.74°C)
55.48°F
(13.04°C)
3.06°F
(1.70°C)
126th Coolest
Coolest since:
1974
3rd Warmest
Warmest to Date
2019
Jul–Sep 1998
3-Month
59.99°F
(15.55°C)
57.16°F
(13.98°C)
2.83°F
(1.57°C)
127th Coolest
Coolest since:
1924
2nd Warmest
Warmest to Date
2022
Jun–Sep 1998
4-Month
58.97°F
(14.98°C)
56.78°F
(13.77°C)
2.19°F
(1.21°C)
123rd Coolest
Coolest since:
1903
6th Warmest
Warmest to Date
2021
May–Sep 1998
5-Month
57.13°F
(13.96°C)
54.91°F
(12.73°C)
2.22°F
(1.23°C)
124th Coolest
Coolest since:
1907, 1924
5th Warmest
Warmest to Date
2018
Apr–Sep 1998
6-Month
54.05°F
(12.25°C)
52.19°F
(11.22°C)
1.86°F
(1.03°C)
121st Coolest
Coolest since:
1907
8th Warmest
Warmest to Date
2018
Mar–Sep 1998
7-Month
50.73°F
(10.41°C)
49.02°F
(9.46°C)
1.71°F
(0.95°C)
118th Coolest
Coolest since:
1917
11th Warmest
Warmest to Date
2012
Feb–Sep 1998
8-Month
48.09°F
(8.94°C)
45.74°F
(7.63°C)
2.35°F
(1.31°C)
125th Coolest
Coolest since:
1917
4th Warmest
Warmest to Date
2012
Jan–Sep 1998
9-Month
45.60°F
(7.56°C)
42.86°F
(6.03°C)
2.74°F
(1.53°C)
125th Coolest
Coolest since:
1917
4th Warmest
Warmest to Date
2012
Dec 1997–Sep 1998
10-Month
43.54°F
(6.41°C)
40.84°F
(4.91°C)
2.70°F
(1.50°C)
124th Coolest
Coolest since:
1917
4th Warmest
Warmest to Date
2016
Nov 1997–Sep 1998
11-Month
42.38°F
(5.77°C)
39.91°F
(4.39°C)
2.47°F
(1.38°C)
124th Coolest
Coolest since:
1917
4th Warmest
Warmest to Date
2016
Oct 1997–Sep 1998
12-Month
42.32°F
(5.73°C)
40.04°F
(4.47°C)
2.28°F
(1.26°C)
124th Coolest
Coolest since:
1917
4th Warmest
Warmest to Date
2016
Apr 1997–Sep 1998
18-Month
45.57°F
(7.54°C)
44.10°F
(6.72°C)
1.47°F
(0.82°C)
111th Coolest
Coolest since:
1917
17th Warmest
Warmest to Date
2016
Oct 1996–Sep 1998
24-Month
41.40°F
(5.22°C)
40.04°F
(4.47°C)
1.36°F
(0.75°C)
111th Coolest
Coolest since:
1918
16th Warmest
Warmest to Date
2017
Oct 1995–Sep 1998
36-Month
40.96°F
(4.98°C)
40.02°F
(4.46°C)
0.94°F
(0.52°C)
103rd Coolest
Coolest since:
1918
23rd Warmest
Warmest since:
2017, 2018
Oct 1994–Sep 1998
48-Month
41.09°F
(5.05°C)
40.01°F
(4.45°C)
1.08°F
(0.60°C)
102nd Coolest
Coolest since:
1918
23rd Warmest
Warmest to Date
2018
Oct 1993–Sep 1998
60-Month
40.92°F
(4.96°C)
40.00°F
(4.44°C)
0.92°F
(0.52°C)
99th Coolest
Coolest since:
1920
25th Warmest
Warmest to Date
2019, 2020

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