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, August 1999

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PeriodValue1901-2000
Mean		AnomalyRank
(1895-2022)		Warmest/Coolest
Since		Record
August 1999
1-Month		59.88°F
(15.49°C)		59.06°F
(15.03°C)		0.82°F
(0.46°C)		92nd Coolest
Coolest since:
1950
37th Warmest
Warmest since:
2022
Ties: 1900
Jul–Aug 1999
2-Month		60.81°F
(16.01°C)		59.80°F
(15.44°C)		1.01°F
(0.57°C)		99th Coolest
Coolest since:
1950
30th Warmest
Warmest since:
2022
Jun–Aug 1999
3-Month		59.28°F
(15.16°C)		58.41°F
(14.67°C)		0.87°F
(0.49°C)		96th Coolest
Coolest since:
1915
33rd Warmest
Warmest since:
2021
May–Aug 1999
4-Month		56.31°F
(13.51°C)		55.67°F
(13.15°C)		0.64°F
(0.36°C)		89th Coolest
Coolest since:
1907
40th Warmest
Warmest since:
2018
Apr–Aug 1999
5-Month		52.98°F
(11.66°C)		52.25°F
(11.25°C)		0.73°F
(0.41°C)		95th Coolest
Coolest since:
1907
34th Warmest
Warmest since:
2012
Mar–Aug 1999
6-Month		49.29°F
(9.61°C)		48.54°F
(9.19°C)		0.75°F
(0.42°C)		96th Coolest
Coolest since:
1917
33rd Warmest
Warmest since:
2012
Feb–Aug 1999
7-Month		46.28°F
(7.93°C)		44.87°F
(7.15°C)		1.41°F
(0.78°C)		111th Coolest
Coolest since:
1917
18th Warmest
Warmest since:
2012
Jan–Aug 1999
8-Month		43.38°F
(6.32°C)		41.73°F
(5.41°C)		1.65°F
(0.91°C)		113th Coolest
Coolest since:
1917
16th Warmest
Warmest since:
2012
Dec 1998–Aug 1999
9-Month		41.35°F
(5.19°C)		39.61°F
(4.23°C)		1.74°F
(0.96°C)		115th Coolest
Coolest since:
1917
13th Warmest
Warmest since:
2012
Ties: 1992, 2018
Nov 1998–Aug 1999
10-Month		40.72°F
(4.84°C)		38.72°F
(3.73°C)		2.00°F
(1.11°C)		119th Coolest
Coolest since:
1917
9th Warmest
Warmest since:
2016
Oct 1998–Aug 1999
11-Month		40.96°F
(4.98°C)		38.97°F
(3.87°C)		1.99°F
(1.11°C)		118th Coolest
Coolest since:
1917
10th Warmest
Warmest since:
2016
Ties: 2021
Sep 1998–Aug 1999
12-Month		42.21°F
(5.67°C)		40.04°F
(4.47°C)		2.17°F
(1.20°C)		122nd Coolest
Coolest since:
1917
6th Warmest
Warmest to Date
2016
Mar 1998–Aug 1999
18-Month		44.76°F
(7.09°C)		42.87°F
(6.04°C)		1.89°F
(1.05°C)		121st Coolest
Coolest since:
1917
7th Warmest
Warmest to Date
2016
Sep 1997–Aug 1999
24-Month		42.18°F
(5.66°C)		40.04°F
(4.47°C)		2.14°F
(1.19°C)		122nd Coolest
Coolest since:
1918
5th Warmest
Warmest to Date
2017
Sep 1996–Aug 1999
36-Month		41.55°F
(5.31°C)		40.02°F
(4.46°C)		1.53°F
(0.85°C)		112th Coolest
Coolest since:
1918
14th Warmest
Warmest to Date
2017
Sep 1995–Aug 1999
48-Month		41.19°F
(5.11°C)		40.01°F
(4.45°C)		1.18°F
(0.66°C)		104th Coolest
Coolest since:
1918
21st Warmest
Warmest to Date
2018
Sep 1994–Aug 1999
60-Month		41.25°F
(5.14°C)		40.00°F
(4.44°C)		1.25°F
(0.70°C)		104th Coolest
Coolest since:
1920
20th Warmest
Warmest to Date
2020
Ties: 2014

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