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 2011

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PeriodValue1901-2000
Mean		AnomalyRank
(1895-2022)		Warmest/Coolest
Since		Record
May 2011
1-Month		47.05°F
(8.36°C)		47.44°F
(8.58°C)		-0.39°F
(-0.22°C)		39th Coolest
Coolest since:
1917
90th Warmest
Warmest since:
2018
Ties: 1895
Apr–May 2011
2-Month		43.39°F
(6.33°C)		43.03°F
(6.13°C)		0.36°F
(0.20°C)		68th Coolest
Coolest since:
1907
61st Warmest
Warmest since:
2012
Mar–May 2011
3-Month		39.54°F
(4.19°C)		38.68°F
(3.71°C)		0.86°F
(0.48°C)		93rd Coolest
Coolest since:
1917
36th Warmest
Warmest since:
2012
Feb–May 2011
4-Month		35.07°F
(1.71°C)		34.72°F
(1.51°C)		0.35°F
(0.20°C)		77th Coolest
Coolest since:
1917
52nd Warmest
Warmest since:
2012
Jan–May 2011
5-Month		31.93°F
(-0.04°C)		31.72°F
(-0.16°C)		0.21°F
(0.12°C)		71st Coolest
Coolest since:
1917
58th Warmest
Warmest since:
2012
Ties: 1993
Dec 2010–May 2011
6-Month		30.43°F
(-0.87°C)		30.21°F
(-0.99°C)		0.22°F
(0.12°C)		66th Coolest
Coolest since:
1917
62nd Warmest
Warmest since:
2012
Nov 2010–May 2011
7-Month		30.48°F
(-0.84°C)		30.28°F
(-0.96°C)		0.20°F
(0.12°C)		72nd Coolest
Coolest since:
1917
56th Warmest
Warmest since:
2012
Oct 2010–May 2011
8-Month		32.03°F
(0.02°C)		31.68°F
(-0.18°C)		0.35°F
(0.20°C)		76th Coolest
Coolest since:
1917
52nd Warmest
Warmest since:
2016, 2017
Sep 2010–May 2011
9-Month		34.38°F
(1.32°C)		33.92°F
(1.07°C)		0.46°F
(0.25°C)		84th Coolest
Coolest since:
1917
44th Warmest
Warmest since:
2016
Aug 2010–May 2011
10-Month		37.07°F
(2.82°C)		36.44°F
(2.47°C)		0.63°F
(0.35°C)		90th Coolest
Coolest since:
1917
38th Warmest
Warmest since:
2017
Jul 2010–May 2011
11-Month		39.37°F
(4.09°C)		38.63°F
(3.68°C)		0.74°F
(0.41°C)		94th Coolest
Coolest since:
1917
34th Warmest
Warmest since:
2017
Jun 2010–May 2011
12-Month		40.96°F
(4.98°C)		40.04°F
(4.47°C)		0.92°F
(0.51°C)		99th Coolest
Coolest since:
1917
29th Warmest
Warmest since:
2017
Ties: 1981
Dec 2009–May 2011
18-Month		37.54°F
(3.08°C)		36.76°F
(2.64°C)		0.78°F
(0.44°C)		93rd Coolest
Coolest since:
1918
34th Warmest
Warmest since:
2017
Jun 2009–May 2011
24-Month		40.80°F
(4.89°C)		40.03°F
(4.46°C)		0.77°F
(0.43°C)		98th Coolest
Coolest since:
1918
29th Warmest
Warmest since:
2017
Ties: 1939
Jun 2008–May 2011
36-Month		40.76°F
(4.87°C)		40.02°F
(4.46°C)		0.74°F
(0.41°C)		97th Coolest
Coolest since:
1918
29th Warmest
Warmest since:
2017
Jun 2007–May 2011
48-Month		40.79°F
(4.88°C)		40.01°F
(4.45°C)		0.78°F
(0.43°C)		98th Coolest
Coolest since:
1918
27th Warmest
Warmest since:
2018
Ties: 1935
Jun 2006–May 2011
60-Month		40.92°F
(4.96°C)		40.00°F
(4.44°C)		0.92°F
(0.52°C)		100th Coolest
Coolest since:
1920
24th Warmest
Warmest since:
2020

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