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 1999

View Period (Months):
Download: CSV JSON XML
  • Record Coolest
  • Bottom ⅒
  • Bottom ⅓
  • Normal
  • Top ⅓
  • Top ⅒
  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
September 1999
1-Month
77.94°F
(25.52°C)
77.81°F
(25.45°C)
0.13°F
(0.07°C)
59th Coolest
Coolest since:
1965
70th Warmest
Warmest since:
1998
Aug–Sep 1999
2-Month
81.94°F
(27.74°C)
81.48°F
(27.49°C)
0.46°F
(0.25°C)
73rd Coolest
Coolest since:
1965
56th Warmest
Warmest since:
1998
Jul–Sep 1999
3-Month
83.58°F
(28.66°C)
83.21°F
(28.45°C)
0.37°F
(0.21°C)
74th Coolest
Coolest since:
1912
55th Warmest
Warmest since:
1936
Jun–Sep 1999
4-Month
82.78°F
(28.21°C)
82.74°F
(28.19°C)
0.04°F
(0.02°C)
59th Coolest
Coolest since:
1915
70th Warmest
Warmest since:
1936
May–Sep 1999
5-Month
80.77°F
(27.09°C)
80.78°F
(27.10°C)
-0.01°F
(-0.01°C)
56th Coolest
Coolest since:
1915
73rd Warmest
Warmest since:
1936
Ties: 1983
Apr–Sep 1999
6-Month
77.88°F
(25.49°C)
77.90°F
(25.50°C)
-0.02°F
(-0.01°C)
52nd Coolest
Coolest since:
1907
77th Warmest
Warmest since:
2012
Ties: 1941, 1989
Mar–Sep 1999
7-Month
74.57°F
(23.65°C)
74.35°F
(23.53°C)
0.22°F
(0.12°C)
68th Coolest
Coolest since:
1912
61st Warmest
Warmest since:
2012
Ties: 1966
Feb–Sep 1999
8-Month
71.60°F
(22.00°C)
70.66°F
(21.48°C)
0.94°F
(0.52°C)
94th Coolest
Coolest since:
1912
35th Warmest
Warmest since:
2012
Ties: 1963
Jan–Sep 1999
9-Month
68.58°F
(20.32°C)
67.30°F
(19.61°C)
1.28°F
(0.71°C)
102nd Coolest
Coolest since:
1912
27th Warmest
Warmest since:
2012
Dec 1998–Sep 1999
10-Month
66.32°F
(19.07°C)
64.86°F
(18.26°C)
1.46°F
(0.81°C)
109th Coolest
Coolest since:
1912
19th Warmest
Warmest since:
2012
Nov 1998–Sep 1999
11-Month
65.27°F
(18.48°C)
63.75°F
(17.64°C)
1.52°F
(0.84°C)
113th Coolest
Coolest since:
1912
15th Warmest
Warmest since:
2012
Oct 1998–Sep 1999
12-Month
65.41°F
(18.56°C)
64.01°F
(17.78°C)
1.40°F
(0.78°C)
112th Coolest
Coolest since:
1912
16th Warmest
Warmest since:
2012
Apr 1998–Sep 1999
18-Month
70.04°F
(21.13°C)
68.64°F
(20.36°C)
1.40°F
(0.77°C)
114th Coolest
Coolest since:
1912
14th Warmest
Warmest since:
2012
Ties: 1935
Oct 1997–Sep 1999
24-Month
65.20°F
(18.44°C)
64.00°F
(17.78°C)
1.20°F
(0.66°C)
110th Coolest
Coolest since:
1913
17th Warmest
Warmest since:
2017
Oct 1996–Sep 1999
36-Month
64.68°F
(18.16°C)
63.98°F
(17.77°C)
0.70°F
(0.39°C)
92nd Coolest
Coolest since:
1917
34th Warmest
Warmest since:
2018
Oct 1995–Sep 1999
48-Month
64.55°F
(18.08°C)
63.97°F
(17.76°C)
0.58°F
(0.32°C)
88th Coolest
Coolest since:
1915
37th Warmest
Warmest since:
2018
Oct 1994–Sep 1999
60-Month
64.51°F
(18.06°C)
63.96°F
(17.76°C)
0.55°F
(0.30°C)
88th Coolest
Coolest since:
1907
36th Warmest
Warmest since:
2016
Ties: 1939

Citing This Page