National Rankings

National Data Info
Please note, 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.

September 2021 Average Temperature Rankings

View Period (Months):
  • Record Coolest
  • Bottom ⅒
  • Bottom ⅓
  • Normal
  • Top ⅓
  • Top ⅒
  • Record Warmest
PeriodValue
1901-2000
Mean
AnomalyRank
(1895-2025)
Coolest/Warmest
Since
Record
September 2021
1-Month
67.78°F
(19.88°C)
64.84°F
(18.24°C)
2.94°F124th Coolest
Coolest since:
1965
7th Warmest
Warmest since:
1998
Aug–Sep 2021
2-Month
70.87°F
(21.59°C)
68.46°F
(20.26°C)
2.41°F125th Coolest
Coolest since:
1974
6th Warmest
Warmest since:
1998
Jul–Sep 2021
3-Month
72.38°F
(22.43°C)
70.17°F
(21.21°C)
2.21°F124th Coolest
Coolest since:
1950
7th Warmest
Warmest since:
2022
Jun–Sep 2021
4-Month
72.43°F
(22.46°C)
69.74°F
(20.97°C)
2.69°F128th Coolest
Coolest since:
1903
3rd WarmestWarmest to Date2024
May–Sep 2021
5-Month
70.01°F
(21.12°C)
67.83°F
(19.91°C)
2.18°F125th Coolest
Coolest since:
1907
6th Warmest
Warmest since:
2018
Apr–Sep 2021
6-Month
66.98°F
(19.43°C)
65.03°F
(18.35°C)
1.95°F124th Coolest
Coolest since:
1907
7th Warmest
Warmest since:
2024
Mar–Sep 2021
7-Month
63.92°F
(17.73°C)
61.67°F
(16.48°C)
2.25°F127th Coolest
Coolest since:
1912
4th Warmest
Warmest since:
2012
Feb–Sep 2021
8-Month
59.75°F
(15.42°C)
58.19°F
(14.55°C)
1.56°F114th Coolest
Coolest since:
1917
17th Warmest
Warmest since:
2012
Jan–Sep 2021
9-Month
56.96°F
(13.87°C)
55.07°F
(12.82°C)
1.89°F120th Coolest
Coolest since:
1912
11th Warmest
Warmest since:
2012
Dec 2020–Sep 2021
10-Month
54.83°F
(12.68°C)
52.84°F
(11.58°C)
1.99°F118th Coolest
Coolest since:
1917
12th Warmest
Warmest since:
2012
Nov 2020–Sep 2021
11-Month
54.06°F
(12.26°C)
51.83°F
(11.02°C)
2.23°F122nd Coolest
Coolest since:
1912
8th Warmest
Warmest since:
2012
Oct 2020–Sep 2021
12-Month
54.08°F
(12.27°C)
52.02°F
(11.12°C)
2.06°F121st Coolest
Coolest since:
1912
9th Warmest
Warmest since:
2012, 2024
Apr 2020–Sep 2021
18-Month
58.17°F
(14.54°C)
56.35°F
(13.53°C)
1.82°F122nd Coolest
Coolest since:
1917
8th Warmest
Warmest since:
2024
Oct 2019–Sep 2021
24-Month
53.94°F
(12.19°C)
52.01°F
(11.12°C)
1.93°F119th Coolest
Coolest since:
1918
10th Warmest
Warmest since:
2017
Oct 2018–Sep 2021
36-Month
53.50°F
(11.94°C)
51.99°F
(11.11°C)
1.51°F113th Coolest
Coolest since:
1917
15th Warmest
Warmest since:
2018
Oct 2017–Sep 2021
48-Month
53.62°F
(12.01°C)
51.98°F
(11.10°C)
1.64°F117th Coolest
Coolest since:
1918
10th Warmest
Warmest since:
2018
Oct 2016–Sep 2021
60-Month
53.87°F
(12.15°C)
51.97°F
(11.09°C)
1.90°F121st Coolest
Coolest since:
1920
5th Warmest
Warmest since:
2024

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