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 1991

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 1991
1-Month
77.56°F
(25.31°C)
77.81°F
(25.45°C)
-0.25°F
(-0.14°C)
53rd Coolest
Coolest since:
1965
76th Warmest
Warmest since:
1998
Aug–Sep 1991
2-Month
81.64°F
(27.58°C)
81.48°F
(27.49°C)
0.16°F
(0.09°C)
65th Coolest
Coolest since:
1965
64th Warmest
Warmest since:
1998
Jul–Sep 1991
3-Month
83.30°F
(28.50°C)
83.21°F
(28.45°C)
0.09°F
(0.05°C)
65th Coolest
Coolest since:
1912
64th Warmest
Warmest since:
1936
Jun–Sep 1991
4-Month
82.80°F
(28.22°C)
82.74°F
(28.19°C)
0.06°F
(0.03°C)
60th Coolest
Coolest since:
1915
69th Warmest
Warmest since:
1936
May–Sep 1991
5-Month
80.95°F
(27.19°C)
80.78°F
(27.10°C)
0.17°F
(0.09°C)
65th Coolest
Coolest since:
1915
64th Warmest
Warmest since:
1936
Ties: 2008
Apr–Sep 1991
6-Month
78.19°F
(25.66°C)
77.90°F
(25.50°C)
0.29°F
(0.16°C)
69th Coolest
Coolest since:
1907
60th Warmest
Warmest since:
2012
Mar–Sep 1991
7-Month
74.84°F
(23.80°C)
74.35°F
(23.53°C)
0.49°F
(0.27°C)
78th Coolest
Coolest since:
1912
51st Warmest
Warmest since:
2012
Feb–Sep 1991
8-Month
71.93°F
(22.18°C)
70.66°F
(21.48°C)
1.27°F
(0.70°C)
103rd Coolest
Coolest since:
1912
26th Warmest
Warmest since:
2012
Jan–Sep 1991
9-Month
68.30°F
(20.17°C)
67.30°F
(19.61°C)
1.00°F
(0.56°C)
97th Coolest
Coolest since:
1912
32nd Warmest
Warmest since:
2012
Dec 1990–Sep 1991
10-Month
65.66°F
(18.70°C)
64.86°F
(18.26°C)
0.80°F
(0.44°C)
94th Coolest
Coolest since:
1912
34th Warmest
Warmest since:
2012
Ties: 1946
Nov 1990–Sep 1991
11-Month
64.86°F
(18.26°C)
63.75°F
(17.64°C)
1.11°F
(0.62°C)
103rd Coolest
Coolest since:
1912
25th Warmest
Warmest since:
2012
Ties: 1987
Oct 1990–Sep 1991
12-Month
65.06°F
(18.37°C)
64.01°F
(17.78°C)
1.05°F
(0.59°C)
104th Coolest
Coolest since:
1912
24th Warmest
Warmest since:
2012
Apr 1990–Sep 1991
18-Month
69.49°F
(20.83°C)
68.64°F
(20.36°C)
0.85°F
(0.47°C)
101st Coolest
Coolest since:
1912
27th Warmest
Warmest since:
2012
Ties: 2005
Oct 1989–Sep 1991
24-Month
65.15°F
(18.42°C)
64.00°F
(17.78°C)
1.15°F
(0.64°C)
108th Coolest
Coolest since:
1913
19th Warmest
Warmest since:
2017
Oct 1988–Sep 1991
36-Month
64.88°F
(18.27°C)
63.98°F
(17.77°C)
0.90°F
(0.50°C)
98th Coolest
Coolest since:
1917
28th Warmest
Warmest since:
2018
Ties: 2005
Oct 1987–Sep 1991
48-Month
64.95°F
(18.31°C)
63.97°F
(17.76°C)
0.98°F
(0.55°C)
99th Coolest
Coolest since:
1915
26th Warmest
Warmest since:
2018
Oct 1986–Sep 1991
60-Month
64.95°F
(18.31°C)
63.96°F
(17.76°C)
0.99°F
(0.55°C)
99th Coolest
Coolest since:
1907
25th Warmest
Warmest since:
2016

Citing This Page