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, May 1918

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Period Value 1901-2000
Mean		 Anomaly Rank
(1895-2022)		 Warmest/Coolest
Since		 Record
May 1918
1-Month 		47.80°F
(8.78°C)		 47.44°F
(8.58°C)		 0.36°F
(0.20°C)		 73rd Coolest
Coolest since:
 1917
56th Warmest
Warmest since:
 2018
Ties: 2021
Apr–May 1918
2-Month 		42.27°F
(5.71°C)		 43.03°F
(6.13°C)		 -0.76°F
(-0.42°C)		 26th Coolest
Coolest since:
 1907
103rd Warmest
Warmest since:
 2012
Mar–May 1918
3-Month 		39.24°F
(4.02°C)		 38.68°F
(3.71°C)		 0.56°F
(0.31°C)		 81st Coolest
Coolest since:
 1917
48th Warmest
Warmest since:
 2012
Feb–May 1918
4-Month 		34.87°F
(1.59°C)		 34.72°F
(1.51°C)		 0.15°F
(0.08°C)		 67th Coolest
Coolest since:
 1917
62nd Warmest
Warmest since:
 2012
Jan–May 1918
5-Month 		30.55°F
(-0.81°C)		 31.72°F
(-0.16°C)		 -1.17°F
(-0.65°C)		 16th Coolest
Coolest since:
 1917
113th Warmest
Warmest since:
 2012
Dec 1917–May 1918
6-Month 		28.56°F
(-1.91°C)		 30.21°F
(-0.99°C)		 -1.65°F
(-0.92°C)		 7th Coolest
Coolest since:
 1917
121st Warmest
Warmest since:
 2012
Nov 1917–May 1918
7-Month 		28.92°F
(-1.71°C)		 30.28°F
(-0.96°C)		 -1.36°F
(-0.75°C)		 10th Coolest
Coolest since:
 1917
118th Warmest
Warmest since:
 2012
Oct 1917–May 1918
8-Month 		29.86°F
(-1.19°C)		 31.68°F
(-0.18°C)		 -1.82°F
(-1.01°C)		 5th Coolest
Coolest since:
 1917
123rd Warmest
Warmest since:
 2016, 2017
Sep 1917–May 1918
9-Month 		32.22°F
(0.12°C)		 33.92°F
(1.07°C)		 -1.70°F
(-0.95°C)		 4th Coolest
Coolest since:
 1917
124th Warmest
Warmest since:
 2016
Ties: 1912
Aug 1917–May 1918
10-Month 		34.76°F
(1.53°C)		 36.44°F
(2.47°C)		 -1.68°F
(-0.94°C)		 3rd Coolest
Coolest since:
 1917
125th Warmest
Warmest since:
 2017
Jul 1917–May 1918
11-Month 		37.16°F
(2.87°C)		 38.63°F
(3.68°C)		 -1.47°F
(-0.81°C)		 6th Coolest
Coolest since:
 1917
122nd Warmest
Warmest since:
 2017
Jun 1917–May 1918
12-Month 		38.49°F
(3.61°C)		 40.04°F
(4.47°C)		 -1.55°F
(-0.86°C)		 4th Coolest
Coolest since:
 1917
124th Warmest
Warmest since:
 2017
Dec 1916–May 1918
18-Month 		34.57°F
(1.43°C)		 36.76°F
(2.64°C)		 -2.19°F
(-1.21°C)		 1st Coolest
Coolest to Date
 1918
126th Warmest
Warmest since:
 2017
Jun 1916–May 1918
24-Month 		38.05°F
(3.36°C)		 40.03°F
(4.46°C)		 -1.98°F
(-1.10°C)		 1st Coolest
Coolest to Date
 1918
126th Warmest
Warmest since:
 2017
Jun 1915–May 1918
36-Month 		38.48°F
(3.60°C)		 40.02°F
(4.46°C)		 -1.54°F
(-0.86°C)		 1st Coolest
Coolest to Date
 1918
125th Warmest
Warmest since:
 2017
Jun 1914–May 1918
48-Month 		38.86°F
(3.81°C)		 40.01°F
(4.45°C)		 -1.15°F
(-0.64°C)		 1st Coolest
Coolest to Date
 1918
124th Warmest
Warmest since:
 2018
Jun 1913–May 1918
60-Month 		39.15°F
(3.97°C)		 40.00°F
(4.44°C)		 -0.85°F
(-0.47°C)		 2nd Coolest
Coolest to Date
 1920
122nd Warmest
Warmest since:
 2020

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