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.

Maximum Temperature Rankings, July 1978

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PeriodValue1901-2000
Mean		AnomalyRank
(1895-2022)		Warmest/Coolest
Since		Record
July 1978
1-Month		86.92°F
(30.51°C)		86.68°F
(30.38°C)		0.24°F
(0.13°C)		71st Coolest
Coolest since:
1992
58th Warmest
Warmest since:
1936
Ties: 1929, 1941, 2000
Jun–Jul 1978
2-Month		84.51°F
(29.17°C)		84.01°F
(28.89°C)		0.50°F
(0.28°C)		74th Coolest
Coolest since:
1915
55th Warmest
Warmest since:
1936
May–Jul 1978
3-Month		80.29°F
(26.83°C)		80.32°F
(26.84°C)		-0.03°F
(-0.01°C)		57th Coolest
Coolest since:
1907
72nd Warmest
Warmest since:
1934
Apr–Jul 1978
4-Month		76.07°F
(24.48°C)		76.12°F
(24.51°C)		-0.05°F
(-0.03°C)		51st Coolest
Coolest since:
1907
78th Warmest
Warmest since:
1934
Mar–Jul 1978
5-Month		71.40°F
(21.89°C)		71.49°F
(21.94°C)		-0.09°F
(-0.05°C)		55th Coolest
Coolest since:
1912
74th Warmest
Warmest since:
2012
Feb–Jul 1978
6-Month		65.80°F
(18.78°C)		67.05°F
(19.47°C)		-1.25°F
(-0.69°C)		19th Coolest
Coolest since:
1912
110th Warmest
Warmest since:
2012
Ties: 1947
Jan–Jul 1978
7-Month		61.38°F
(16.32°C)		63.25°F
(17.36°C)		-1.87°F
(-1.04°C)		6th Coolest
Coolest since:
1979
123rd Warmest
Warmest since:
2012
Dec 1977–Jul 1978
8-Month		59.11°F
(15.06°C)		60.70°F
(15.94°C)		-1.59°F
(-0.88°C)		9th Coolest
Coolest since:
1979
119th Warmest
Warmest since:
2012
Ties: 1993
Nov 1977–Jul 1978
9-Month		58.48°F
(14.71°C)		59.82°F
(15.46°C)		-1.34°F
(-0.75°C)		11th Coolest
Coolest since:
1912
117th Warmest
Warmest since:
2012
Oct 1977–Jul 1978
10-Month		59.30°F
(15.17°C)		60.52°F
(15.84°C)		-1.22°F
(-0.67°C)		10th Coolest
Coolest since:
1912
118th Warmest
Warmest since:
2012
Sep 1977–Jul 1978
11-Month		60.98°F
(16.10°C)		62.09°F
(16.72°C)		-1.11°F
(-0.62°C)		13th Coolest
Coolest since:
1912
115th Warmest
Warmest since:
2012
Aug 1977–Jul 1978
12-Month		62.90°F
(17.17°C)		64.01°F
(17.78°C)		-1.11°F
(-0.61°C)		14th Coolest
Coolest since:
1912
114th Warmest
Warmest since:
2012
Ties: 1905
Feb 1977–Jul 1978
18-Month		65.05°F
(18.36°C)		65.01°F
(18.34°C)		0.04°F
(0.02°C)		61st Coolest
Coolest since:
1979
67th Warmest
Warmest since:
2017
Aug 1976–Jul 1978
24-Month		63.43°F
(17.46°C)		63.99°F
(17.77°C)		-0.56°F
(-0.31°C)		25th Coolest
Coolest since:
1913
102nd Warmest
Warmest since:
2017
Aug 1975–Jul 1978
36-Month		63.88°F
(17.71°C)		63.98°F
(17.77°C)		-0.10°F
(-0.06°C)		47th Coolest
Coolest since:
1905
79th Warmest
Warmest since:
2018
Ties: 1926, 1952, 1966
Aug 1974–Jul 1978
48-Month		63.62°F
(17.57°C)		63.97°F
(17.76°C)		-0.35°F
(-0.19°C)		28th Coolest
Coolest since:
1915
97th Warmest
Warmest since:
2018
Aug 1973–Jul 1978
60-Month		63.86°F
(17.70°C)		63.96°F
(17.76°C)		-0.10°F
(-0.06°C)		47th Coolest
Coolest since:
1907
77th Warmest
Warmest since:
2016
Ties: 1951

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