Statewide Rankings

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

Idaho

Average Temperature Rankings, September 2021

View Period (Months):
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  • Record Coolest
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  • Top 1/3
  • Top 1/10
  • Record Warmest
Period Value 1901-2000
Mean		 Anomaly Rank
(1895-2022)		 Warmest/Coolest
Since		 Record
September 2021
1-Month 		57.2°F
(14.0°C)		 54.7°F
(12.6°C)		 2.5°F
(1.4°C)		 105th Coolest
Coolest since:
 1912, 1965
24th Warmest
Warmest since:
 1990
Ties: 1960, 2015
Aug–Sep 2021
2-Month 		60.6°F
(15.9°C)		 59.2°F
(15.1°C)		 1.4°F
(0.8°C)		 99th Coolest
Coolest since:
 1912
30th Warmest
Warmest since:
 2022
Ties: 1897, 1904, 1953, 2018
Jul–Sep 2021
3-Month 		64.3°F
(17.9°C)		 61.1°F
(16.2°C)		 3.2°F
(1.7°C)		 120th Coolest
Coolest since:
 1912
9th Warmest
Warmest since:
 2022
Jun–Sep 2021
4-Month 		64.5°F
(18.1°C)		 60.0°F
(15.6°C)		 4.5°F
(2.5°C)		 128th Coolest
Coolest since:
 1993
1st Warmest
Warmest to Date
 2021
May–Sep 2021
5-Month 		61.6°F
(16.4°C)		 57.9°F
(14.4°C)		 3.7°F
(2.0°C)		 128th Coolest
Coolest since:
 1912
1st Warmest
Warmest to Date
 2021
Apr–Sep 2021
6-Month 		58.3°F
(14.6°C)		 55.1°F
(12.8°C)		 3.2°F
(1.8°C)		 128th Coolest
Coolest since:
 1912
1st Warmest
Warmest to Date
 2021
Mar–Sep 2021
7-Month 		54.9°F
(12.7°C)		 51.8°F
(11.0°C)		 3.1°F
(1.7°C)		 124th Coolest
Coolest since:
 1912
5th Warmest
Warmest since:
 1934, 2015
Feb–Sep 2021
8-Month 		51.2°F
(10.7°C)		 48.6°F
(9.2°C)		 2.6°F
(1.5°C)		 120th Coolest
Coolest since:
 1964
9th Warmest
Warmest since:
 1934, 2015
Jan–Sep 2021
9-Month 		48.5°F
(9.2°C)		 45.7°F
(7.6°C)		 2.8°F
(1.6°C)		 120th Coolest
Coolest since:
 1917
9th Warmest
Warmest since:
 1934
Dec 2020–Sep 2021
10-Month 		46.3°F
(7.9°C)		 43.6°F
(6.4°C)		 2.7°F
(1.5°C)		 121st Coolest
Coolest since:
 1917
7th Warmest
Warmest since:
 1934
Ties: 2007
Nov 2020–Sep 2021
11-Month 		45.0°F
(7.2°C)		 42.4°F
(5.8°C)		 2.6°F
(1.4°C)		 120th Coolest
Coolest since:
 1917
8th Warmest
Warmest since:
 1934
Oct 2020–Sep 2021
12-Month 		45.1°F
(7.3°C)		 42.6°F
(5.9°C)		 2.5°F
(1.4°C)		 120th Coolest
Coolest since:
 1917
8th Warmest
Warmest since:
 1934
Apr 2020–Sep 2021
18-Month 		48.9°F
(9.4°C)		 46.8°F
(8.2°C)		 2.1°F
(1.2°C)		 121st Coolest
Coolest since:
 1917
7th Warmest
Warmest since:
 2015
Oct 2019–Sep 2021
24-Month 		44.4°F
(6.9°C)		 42.6°F
(5.9°C)		 1.8°F
(1.0°C)		 116th Coolest
Coolest since:
 1917
11th Warmest
Warmest since:
 2016
Ties: 1940, 2001
Oct 2018–Sep 2021
36-Month 		44.0°F
(6.7°C)		 42.6°F
(5.9°C)		 1.4°F
(0.8°C)		 109th Coolest
Coolest since:
 1917
17th Warmest
Warmest since:
 2017
Oct 2017–Sep 2021
48-Month 		44.2°F
(6.8°C)		 42.6°F
(5.9°C)		 1.6°F
(0.9°C)		 117th Coolest
Coolest since:
 1913, 1917, 1932
8th Warmest
Warmest since:
 2018
Ties: 2003
Oct 2016–Sep 2021
60-Month 		44.2°F
(6.8°C)		 42.5°F
(5.8°C)		 1.7°F
(1.0°C)		 117th Coolest
Coolest since:
 1917, 1933
7th Warmest
Warmest since:
 2016, 2017, 2018
Ties: 2004, 2020, 2022

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