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 1990

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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
May 1990
1-Month
46.83°F
(8.24°C)
47.44°F
(8.58°C)
-0.61°F
(-0.34°C)
32nd Coolest
Coolest since:
1917
97th Warmest
Warmest since:
2018
Ties: 1920
Apr–May 1990
2-Month
43.42°F
(6.34°C)
43.03°F
(6.13°C)
0.39°F
(0.21°C)
70th Coolest
Coolest since:
1907
59th Warmest
Warmest since:
2012
Ties: 1954
Mar–May 1990
3-Month
40.07°F
(4.48°C)
38.68°F
(3.71°C)
1.39°F
(0.77°C)
105th Coolest
Coolest since:
1917
24th Warmest
Warmest since:
2012
Feb–May 1990
4-Month
36.36°F
(2.42°C)
34.72°F
(1.51°C)
1.64°F
(0.91°C)
110th Coolest
Coolest since:
1917
19th Warmest
Warmest since:
2012
Jan–May 1990
5-Month
34.25°F
(1.25°C)
31.72°F
(-0.16°C)
2.53°F
(1.41°C)
119th Coolest
Coolest since:
1917
10th Warmest
Warmest since:
2012
Dec 1989–May 1990
6-Month
31.31°F
(-0.38°C)
30.21°F
(-0.99°C)
1.10°F
(0.61°C)
96th Coolest
Coolest since:
1917
32nd Warmest
Warmest since:
2012
Nov 1989–May 1990
7-Month
31.27°F
(-0.41°C)
30.28°F
(-0.96°C)
0.99°F
(0.55°C)
94th Coolest
Coolest since:
1917
34th Warmest
Warmest since:
2012
Ties: 1953
Oct 1989–May 1990
8-Month
32.50°F
(0.28°C)
31.67°F
(-0.18°C)
0.83°F
(0.46°C)
92nd Coolest
Coolest since:
1917
36th Warmest
Warmest since:
2016, 2017
Sep 1989–May 1990
9-Month
34.58°F
(1.43°C)
33.92°F
(1.07°C)
0.66°F
(0.36°C)
91st Coolest
Coolest since:
1917
37th Warmest
Warmest since:
2016
Aug 1989–May 1990
10-Month
37.02°F
(2.79°C)
36.43°F
(2.46°C)
0.59°F
(0.33°C)
88th Coolest
Coolest since:
1917
40th Warmest
Warmest since:
2017
Jul 1989–May 1990
11-Month
39.24°F
(4.02°C)
38.63°F
(3.68°C)
0.61°F
(0.34°C)
90th Coolest
Coolest since:
1917
38th Warmest
Warmest since:
2017
Jun 1989–May 1990
12-Month
40.61°F
(4.78°C)
40.05°F
(4.47°C)
0.56°F
(0.31°C)
88th Coolest
Coolest since:
1917
40th Warmest
Warmest since:
2017
Dec 1988–May 1990
18-Month
37.22°F
(2.90°C)
36.75°F
(2.64°C)
0.47°F
(0.26°C)
81st Coolest
Coolest since:
1918
46th Warmest
Warmest since:
2017
Jun 1988–May 1990
24-Month
40.56°F
(4.76°C)
40.03°F
(4.46°C)
0.53°F
(0.30°C)
89th Coolest
Coolest since:
1918
38th Warmest
Warmest since:
2017
Ties: 1954
Jun 1987–May 1990
36-Month
40.40°F
(4.67°C)
40.01°F
(4.45°C)
0.39°F
(0.22°C)
81st Coolest
Coolest since:
1918
45th Warmest
Warmest since:
2017
Ties: 1943, 1974, 1995
Jun 1986–May 1990
48-Month
40.70°F
(4.83°C)
40.01°F
(4.45°C)
0.69°F
(0.38°C)
95th Coolest
Coolest since:
1918
30th Warmest
Warmest since:
2018
Ties: 1989, 1994
Jun 1985–May 1990
60-Month
40.69°F
(4.83°C)
40.00°F
(4.44°C)
0.69°F
(0.39°C)
93rd Coolest
Coolest since:
1920
31st Warmest
Warmest since:
2020

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