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 1979

View Period (Months):
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  • Record Coolest
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  • Top 1/3
  • Top 1/10
  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
September 1979
1-Month
52.36°F
(11.31°C)
51.90°F
(11.06°C)
0.46°F
(0.25°C)
70th Coolest
Coolest since:
1918
59th Warmest
Warmest since:
2019
Aug–Sep 1979
2-Month
55.51°F
(13.06°C)
55.48°F
(13.04°C)
0.03°F
(0.02°C)
57th Coolest
Coolest since:
1974
72nd Warmest
Warmest since:
2019
Jul–Sep 1979
3-Month
57.17°F
(13.98°C)
57.16°F
(13.98°C)
0.01°F
(0.00°C)
56th Coolest
Coolest since:
1924
73rd Warmest
Warmest since:
2022
Jun–Sep 1979
4-Month
56.52°F
(13.62°C)
56.78°F
(13.77°C)
-0.26°F
(-0.15°C)
40th Coolest
Coolest since:
1903
89th Warmest
Warmest since:
2021
May–Sep 1979
5-Month
54.58°F
(12.54°C)
54.92°F
(12.73°C)
-0.34°F
(-0.19°C)
32nd Coolest
Coolest since:
1907, 1924
97th Warmest
Warmest since:
2018
Ties: 1909
Apr–Sep 1979
6-Month
51.90°F
(11.06°C)
52.19°F
(11.22°C)
-0.29°F
(-0.16°C)
37th Coolest
Coolest since:
1907
92nd Warmest
Warmest since:
2018
Mar–Sep 1979
7-Month
48.92°F
(9.40°C)
49.02°F
(9.46°C)
-0.10°F
(-0.06°C)
50th Coolest
Coolest since:
1917
79th Warmest
Warmest since:
2012
Feb–Sep 1979
8-Month
45.00°F
(7.22°C)
45.74°F
(7.63°C)
-0.74°F
(-0.41°C)
22nd Coolest
Coolest since:
1917
107th Warmest
Warmest since:
2012
Jan–Sep 1979
9-Month
41.40°F
(5.22°C)
42.86°F
(6.03°C)
-1.46°F
(-0.81°C)
6th Coolest
Coolest since:
1917
123rd Warmest
Warmest since:
2012
Dec 1978–Sep 1979
10-Month
39.20°F
(4.00°C)
40.84°F
(4.91°C)
-1.64°F
(-0.91°C)
4th Coolest
Coolest since:
1917
124th Warmest
Warmest since:
2016
Nov 1978–Sep 1979
11-Month
38.46°F
(3.59°C)
39.91°F
(4.39°C)
-1.45°F
(-0.80°C)
5th Coolest
Coolest since:
1917
123rd Warmest
Warmest since:
2016
Oct 1978–Sep 1979
12-Month
38.63°F
(3.68°C)
40.05°F
(4.47°C)
-1.42°F
(-0.79°C)
5th Coolest
Coolest since:
1917
123rd Warmest
Warmest since:
2016
Ties: 1918
Apr 1978–Sep 1979
18-Month
43.31°F
(6.28°C)
44.10°F
(6.72°C)
-0.79°F
(-0.44°C)
9th Coolest
Coolest since:
1917
119th Warmest
Warmest since:
2016
Ties: 1924
Oct 1977–Sep 1979
24-Month
39.22°F
(4.01°C)
40.03°F
(4.46°C)
-0.81°F
(-0.45°C)
7th Coolest
Coolest since:
1918
120th Warmest
Warmest since:
2017
Oct 1976–Sep 1979
36-Month
39.25°F
(4.03°C)
40.02°F
(4.46°C)
-0.77°F
(-0.43°C)
6th Coolest
Coolest since:
1918
120th Warmest
Warmest since:
2017, 2018
Oct 1975–Sep 1979
48-Month
39.46°F
(4.14°C)
40.01°F
(4.45°C)
-0.55°F
(-0.31°C)
12th Coolest
Coolest since:
1918
113th Warmest
Warmest since:
2018
Oct 1974–Sep 1979
60-Month
39.52°F
(4.18°C)
40.00°F
(4.44°C)
-0.48°F
(-0.26°C)
11th Coolest
Coolest since:
1920
113th Warmest
Warmest since:
2019, 2020

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