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.

Average Temperature Rankings, September 2021

View Period (Months):
Download: CSV JSON XML
  • Record Coolest
  • Bottom ⅒
  • Bottom ⅓
  • Normal
  • Top ⅓
  • Top ⅒
  • Record Warmest
PeriodValue1901-2000
Mean		AnomalyRank
(1895-2022)		Warmest/Coolest
Since		Record
September 2021
1-Month		67.80°F
(19.89°C)		64.86°F
(18.26°C)		2.94°F
(1.63°C)		123rd Coolest
Coolest since:
1965
6th Warmest
Warmest since:
1998
Aug–Sep 2021
2-Month		70.89°F
(21.61°C)		68.48°F
(20.27°C)		2.41°F
(1.34°C)		125th Coolest
Coolest since:
1974
4th Warmest
Warmest since:
1998
Jul–Sep 2021
3-Month		72.40°F
(22.44°C)		70.19°F
(21.22°C)		2.21°F
(1.22°C)		124th Coolest
Coolest since:
1950
5th Warmest
Warmest since:
2022
Jun–Sep 2021
4-Month		72.45°F
(22.47°C)		69.77°F
(20.98°C)		2.68°F
(1.49°C)		128th Coolest
Coolest since:
1903
1st Warmest
Warmest to Date
2021
May–Sep 2021
5-Month		70.03°F
(21.13°C)		67.85°F
(19.92°C)		2.18°F
(1.21°C)		124th Coolest
Coolest since:
1907
5th Warmest
Warmest since:
2018
Apr–Sep 2021
6-Month		67.00°F
(19.44°C)		65.05°F
(18.36°C)		1.95°F
(1.08°C)		123rd Coolest
Coolest since:
1907
6th Warmest
Warmest since:
2012
Mar–Sep 2021
7-Month		63.93°F
(17.74°C)		61.69°F
(16.49°C)		2.24°F
(1.25°C)		126th Coolest
Coolest since:
1912
3rd Warmest
Warmest since:
2012
Feb–Sep 2021
8-Month		59.77°F
(15.43°C)		58.21°F
(14.56°C)		1.56°F
(0.87°C)		113th Coolest
Coolest since:
1917
16th Warmest
Warmest since:
2012
Jan–Sep 2021
9-Month		56.97°F
(13.87°C)		55.08°F
(12.82°C)		1.89°F
(1.05°C)		119th Coolest
Coolest since:
1912
10th Warmest
Warmest since:
2012
Dec 2020–Sep 2021
10-Month		54.84°F
(12.69°C)		52.85°F
(11.58°C)		1.99°F
(1.11°C)		117th Coolest
Coolest since:
1917
11th Warmest
Warmest since:
2012
Nov 2020–Sep 2021
11-Month		54.07°F
(12.26°C)		51.84°F
(11.02°C)		2.23°F
(1.24°C)		121st Coolest
Coolest since:
1912
7th Warmest
Warmest since:
2012
Oct 2020–Sep 2021
12-Month		54.09°F
(12.27°C)		52.03°F
(11.13°C)		2.06°F
(1.14°C)		120th Coolest
Coolest since:
1912
8th Warmest
Warmest since:
2012
Apr 2020–Sep 2021
18-Month		58.19°F
(14.55°C)		56.37°F
(13.54°C)		1.82°F
(1.01°C)		121st Coolest
Coolest since:
1917
7th Warmest
Warmest since:
2012
Oct 2019–Sep 2021
24-Month		53.95°F
(12.19°C)		52.02°F
(11.12°C)		1.93°F
(1.07°C)		118th Coolest
Coolest since:
1913, 1918
9th Warmest
Warmest since:
2017
Oct 2018–Sep 2021
36-Month		53.51°F
(11.95°C)		52.00°F
(11.11°C)		1.51°F
(0.84°C)		113th Coolest
Coolest since:
1917
13th Warmest
Warmest since:
2018
Oct 2017–Sep 2021
48-Month		53.64°F
(12.02°C)		51.99°F
(11.11°C)		1.65°F
(0.91°C)		117th Coolest
Coolest since:
1918
8th Warmest
Warmest since:
2018
Oct 2016–Sep 2021
60-Month		53.88°F
(12.16°C)		51.98°F
(11.10°C)		1.90°F
(1.06°C)		120th Coolest
Coolest since:
1920
4th Warmest
Warmest since:
2020

Citing This Page