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, April 1973

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Period Value 1901-2000
Mean		 Anomaly Rank
(1895-2022)		 Warmest/Coolest
Since		 Record
April 1973
1-Month 		37.42°F
(3.01°C)		 38.61°F
(3.67°C)		 -1.19°F
(-0.66°C)		 27th Coolest
Coolest since:
 1920
102nd Warmest
Warmest since:
 1981
Mar–Apr 1973
2-Month 		35.87°F
(2.15°C)		 34.30°F
(1.28°C)		 1.57°F
(0.87°C)		 102nd Coolest
Coolest since:
 1950
27th Warmest
Warmest since:
 2012
Feb–Apr 1973
3-Month 		31.62°F
(-0.21°C)		 30.47°F
(-0.85°C)		 1.15°F
(0.64°C)		 93rd Coolest
Coolest since:
 1899
36th Warmest
Warmest since:
 2012
Jan–Apr 1973
4-Month 		28.68°F
(-1.84°C)		 27.79°F
(-2.34°C)		 0.89°F
(0.50°C)		 86th Coolest
Coolest since:
 1912
43rd Warmest
Warmest since:
 2012
Dec 1972–Apr 1973
5-Month 		27.01°F
(-2.77°C)		 26.76°F
(-2.91°C)		 0.25°F
(0.14°C)		 69th Coolest
Coolest since:
 1899
59th Warmest
Warmest since:
 2012
Ties: 1972
Nov 1972–Apr 1973
6-Month 		27.58°F
(-2.46°C)		 27.42°F
(-2.54°C)		 0.16°F
(0.08°C)		 66th Coolest
Coolest since:
 1899
62nd Warmest
Warmest since:
 2017
Oct 1972–Apr 1973
7-Month 		29.52°F
(-1.38°C)		 29.42°F
(-1.43°C)		 0.10°F
(0.05°C)		 65th Coolest
Coolest since:
 1899
63rd Warmest
Warmest since:
 2017
Sep 1972–Apr 1973
8-Month 		32.36°F
(0.20°C)		 32.23°F
(0.13°C)		 0.13°F
(0.07°C)		 66th Coolest
Coolest since:
 1917
62nd Warmest
Warmest since:
 2016
Aug 1972–Apr 1973
9-Month 		35.31°F
(1.84°C)		 35.21°F
(1.78°C)		 0.10°F
(0.06°C)		 62nd Coolest
Coolest since:
 1917
66th Warmest
Warmest since:
 2017
Jul 1972–Apr 1973
10-Month 		37.72°F
(3.18°C)		 37.74°F
(3.19°C)		 -0.02°F
(-0.01°C)		 60th Coolest
Coolest since:
 1917
68th Warmest
Warmest since:
 2017
Jun 1972–Apr 1973
11-Month 		39.32°F
(4.07°C)		 39.37°F
(4.09°C)		 -0.05°F
(-0.02°C)		 54th Coolest
Coolest since:
 1917
74th Warmest
Warmest since:
 2017
May 1972–Apr 1973
12-Month 		40.01°F
(4.45°C)		 40.04°F
(4.47°C)		 -0.03°F
(-0.02°C)		 56th Coolest
Coolest since:
 1917
72nd Warmest
Warmest since:
 2016
Ties: 1946
Nov 1971–Apr 1973
18-Month 		35.90°F
(2.17°C)		 35.83°F
(2.13°C)		 0.07°F
(0.04°C)		 64th Coolest
Coolest since:
 1918
63rd Warmest
Warmest since:
 2017
May 1971–Apr 1973
24-Month 		40.07°F
(4.48°C)		 40.03°F
(4.46°C)		 0.04°F
(0.02°C)		 58th Coolest
Coolest since:
 1918
69th Warmest
Warmest since:
 2017
Ties: 1936
May 1970–Apr 1973
36-Month 		39.95°F
(4.42°C)		 40.02°F
(4.46°C)		 -0.07°F
(-0.04°C)		 48th Coolest
Coolest since:
 1918
78th Warmest
Warmest since:
 2017
Ties: 1909, 1938
May 1969–Apr 1973
48-Month 		39.88°F
(4.38°C)		 40.01°F
(4.45°C)		 -0.13°F
(-0.07°C)		 47th Coolest
Coolest since:
 1918
78th Warmest
Warmest since:
 2019
May 1968–Apr 1973
60-Month 		39.75°F
(4.31°C)		 40.00°F
(4.44°C)		 -0.25°F
(-0.13°C)		 29th Coolest
Coolest since:
 1920
95th Warmest
Warmest since:
 2020
Ties: 1904

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