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.

Maximum Temperature Rankings, September 2017

View Period (Months):
Download: CSV JSON XML
  • Record Coolest
  • Bottom ⅒
  • Bottom ⅓
  • Normal
  • Top ⅓
  • Top ⅒
  • Record Warmest
PeriodValue1901-2000
Mean
AnomalyRank
(1895-2022)
Warmest/Coolest
Since
Record
September 2017
1-Month
78.76°F
(25.98°C)
77.81°F
(25.45°C)
0.95°F
(0.53°C)
82nd Coolest
Coolest since:
1965
47th Warmest
Warmest since:
1998
Aug–Sep 2017
2-Month
81.52°F
(27.51°C)
81.48°F
(27.49°C)
0.04°F
(0.02°C)
57th Coolest
Coolest since:
1965
72nd Warmest
Warmest since:
1998
Ties: 1981
Jul–Sep 2017
3-Month
83.86°F
(28.81°C)
83.21°F
(28.45°C)
0.65°F
(0.36°C)
86th Coolest
Coolest since:
1912
43rd Warmest
Warmest since:
1936
Ties: 2006
Jun–Sep 2017
4-Month
83.71°F
(28.73°C)
82.74°F
(28.19°C)
0.97°F
(0.54°C)
94th Coolest
Coolest since:
1915
35th Warmest
Warmest since:
1936
May–Sep 2017
5-Month
81.62°F
(27.57°C)
80.78°F
(27.10°C)
0.84°F
(0.47°C)
98th Coolest
Coolest since:
1915
31st Warmest
Warmest since:
1936
Apr–Sep 2017
6-Month
79.00°F
(26.11°C)
77.90°F
(25.50°C)
1.10°F
(0.61°C)
100th Coolest
Coolest since:
1907
29th Warmest
Warmest since:
2012
Mar–Sep 2017
7-Month
75.97°F
(24.43°C)
74.35°F
(23.53°C)
1.62°F
(0.90°C)
112th Coolest
Coolest since:
1912
17th Warmest
Warmest since:
2012
Feb–Sep 2017
8-Month
72.99°F
(22.77°C)
70.66°F
(21.48°C)
2.33°F
(1.29°C)
124th Coolest
Coolest since:
1912
5th Warmest
Warmest since:
2012
Jan–Sep 2017
9-Month
69.63°F
(20.91°C)
67.30°F
(19.61°C)
2.33°F
(1.30°C)
123rd Coolest
Coolest since:
1912
6th Warmest
Warmest since:
2012
Dec 2016–Sep 2017
10-Month
66.94°F
(19.41°C)
64.86°F
(18.26°C)
2.08°F
(1.15°C)
120th Coolest
Coolest since:
1912
8th Warmest
Warmest since:
2012
Nov 2016–Sep 2017
11-Month
66.26°F
(19.03°C)
63.75°F
(17.64°C)
2.51°F
(1.39°C)
121st Coolest
Coolest since:
1912
7th Warmest
Warmest since:
2012
Oct 2016–Sep 2017
12-Month
66.57°F
(19.21°C)
64.01°F
(17.78°C)
2.56°F
(1.43°C)
122nd Coolest
Coolest since:
1912
6th Warmest
Warmest since:
2012
Apr 2016–Sep 2017
18-Month
70.83°F
(21.57°C)
68.64°F
(20.36°C)
2.19°F
(1.21°C)
123rd Coolest
Coolest since:
1912
5th Warmest
Warmest since:
2012
Oct 2015–Sep 2017
24-Month
66.64°F
(19.24°C)
64.00°F
(17.78°C)
2.64°F
(1.46°C)
126th Coolest
Coolest since:
1913
1st Warmest
Warmest to Date
2017
Oct 2014–Sep 2017
36-Month
66.25°F
(19.03°C)
63.98°F
(17.77°C)
2.27°F
(1.26°C)
124th Coolest
Coolest since:
1917
2nd Warmest
Warmest to Date
2018
Oct 2013–Sep 2017
48-Month
65.65°F
(18.69°C)
63.97°F
(17.76°C)
1.68°F
(0.93°C)
121st Coolest
Coolest since:
1915
4th Warmest
Warmest since:
2018
Oct 2012–Sep 2017
60-Month
65.49°F
(18.61°C)
63.96°F
(17.76°C)
1.53°F
(0.85°C)
116th Coolest
Coolest since:
1907
8th Warmest
Warmest since:
2016
Ties: 2003

Citing This Page