Regional Rankings

Regional Data Info
Please note, Palmer Indices are not available for NWS Regions. Palmer Drought Severity Index (PDSI), Palmer Hydrological Drought Index (PHDI), and Palmer Modified Drought Index (PMDI) are not offered for multiple-month time scales.

Great Basin

Average Temperature Rankings, September 2021

View Period (Months):
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  • Record Warmest
Period Value 1901-2000
Mean		 Anomaly Rank
(1895-2022)		 Warmest/Coolest
Since		 Record
September 2021
1-Month 		64.6°F
(18.1°C)		 60.8°F
(16.0°C)		 3.8°F
(2.1°C)		 119th Coolest
Coolest since:
 1912
10th Warmest
Warmest since:
 2022
Aug–Sep 2021
2-Month 		68.0°F
(20.0°C)		 65.1°F
(18.4°C)		 2.9°F
(1.6°C)		 120th Coolest
Coolest since:
 1900
9th Warmest
Warmest since:
 2020
Jul–Sep 2021
3-Month 		70.9°F
(21.6°C)		 67.2°F
(19.6°C)		 3.7°F
(2.0°C)		 125th Coolest
Coolest since:
 1912
4th Warmest
Warmest since:
 2022
Jun–Sep 2021
4-Month 		71.1°F
(21.7°C)		 66.2°F
(19.0°C)		 4.9°F
(2.7°C)		 128th Coolest
Coolest since:
 1907
1st Warmest
Warmest to Date
 2021
May–Sep 2021
5-Month 		68.2°F
(20.1°C)		 63.9°F
(17.7°C)		 4.3°F
(2.4°C)		 128th Coolest
Coolest since:
 1907, 1965
1st Warmest
Warmest to Date
 2021
Apr–Sep 2021
6-Month 		64.8°F
(18.2°C)		 60.8°F
(16.0°C)		 4.0°F
(2.2°C)		 128th Coolest
Coolest since:
 1912
1st Warmest
Warmest to Date
 2021
Mar–Sep 2021
7-Month 		61.1°F
(16.2°C)		 57.6°F
(14.2°C)		 3.5°F
(2.0°C)		 128th Coolest
Coolest since:
 1912
1st Warmest
Warmest since:
 1934, 2007, 2021
Ties: 1934, 2007
Feb–Sep 2021
8-Month 		57.7°F
(14.3°C)		 54.5°F
(12.5°C)		 3.2°F
(1.8°C)		 125th Coolest
Coolest since:
 1903
4th Warmest
Warmest since:
 1934, 2015
Jan–Sep 2021
9-Month 		54.8°F
(12.7°C)		 51.6°F
(10.9°C)		 3.2°F
(1.8°C)		 125th Coolest
Coolest since:
 1917
4th Warmest
Warmest since:
 2015
Ties: 2000, 2014
Dec 2020–Sep 2021
10-Month 		52.4°F
(11.3°C)		 49.4°F
(9.7°C)		 3.0°F
(1.6°C)		 124th Coolest
Coolest since:
 1917
4th Warmest
Warmest since:
 2015
Ties: 1940, 2000, 2003, 2020
Nov 2020–Sep 2021
11-Month 		51.2°F
(10.7°C)		 48.3°F
(9.1°C)		 2.9°F
(1.6°C)		 120th Coolest
Coolest since:
 1917
8th Warmest
Warmest since:
 2015
Oct 2020–Sep 2021
12-Month 		51.5°F
(10.8°C)		 48.5°F
(9.2°C)		 3.0°F
(1.6°C)		 123rd Coolest
Coolest since:
 1917
5th Warmest
Warmest since:
 2015
Apr 2020–Sep 2021
18-Month 		55.7°F
(13.2°C)		 52.6°F
(11.4°C)		 3.1°F
(1.8°C)		 126th Coolest
Coolest since:
 1917
2nd Warmest
Warmest since:
 2015
Ties: 2022
Oct 2019–Sep 2021
24-Month 		51.1°F
(10.6°C)		 48.5°F
(9.2°C)		 2.6°F
(1.4°C)		 122nd Coolest
Coolest since:
 1913
5th Warmest
Warmest since:
 2016
Oct 2018–Sep 2021
36-Month 		50.3°F
(10.2°C)		 48.4°F
(9.1°C)		 1.9°F
(1.1°C)		 116th Coolest
Coolest since:
 1917
10th Warmest
Warmest since:
 2017
Ties: 1936, 2003, 2004
Oct 2017–Sep 2021
48-Month 		50.7°F
(10.4°C)		 48.4°F
(9.1°C)		 2.3°F
(1.3°C)		 120th Coolest
Coolest since:
 1915
5th Warmest
Warmest since:
 2018
Oct 2016–Sep 2021
60-Month 		50.8°F
(10.4°C)		 48.4°F
(9.1°C)		 2.4°F
(1.3°C)		 119th Coolest
Coolest since:
 1917
5th Warmest
Warmest since:
 2018
Ties: 2022

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