Statewide Rankings

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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 2015

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
September 2015 1-Month	57.2°F (14.0°C)	54.7°F (12.6°C)	2.5°F (1.4°C)	105th Coolest	Coolest since: 2013	1912, 1965
	57.2°F (14.0°C)	54.7°F (12.6°C)	2.5°F (1.4°C)	24th Warmest	Warmest since: 2014	1990
	Ties: 1960, 2021
Aug–Sep 2015 2-Month	61.5°F (16.4°C)	59.1°F (15.1°C)	2.4°F (1.3°C)	113th Coolest	Coolest since: 2014	1912
Aug–Sep 2015 2-Month	61.5°F (16.4°C)	59.1°F (15.1°C)	2.4°F (1.3°C)	16th Warmest	Warmest since: 2013	2022
Jul–Sep 2015 3-Month	62.7°F (17.1°C)	61.1°F (16.2°C)	1.6°F (0.9°C)	108th Coolest	Coolest since: 2010	1912
	62.7°F (17.1°C)	61.1°F (16.2°C)	1.6°F (0.9°C)	21st Warmest	Warmest since: 2014	2022
	Ties: 1922, 1938, 1966
Jun–Sep 2015 4-Month	63.2°F (17.3°C)	60.0°F (15.6°C)	3.2°F (1.7°C)	124th Coolest	Coolest since: 2014	1993
Jun–Sep 2015 4-Month	63.2°F (17.3°C)	60.0°F (15.6°C)	3.2°F (1.7°C)	5th Warmest	Warmest since: 2013	2021
May–Sep 2015 5-Month	60.9°F (16.1°C)	57.8°F (14.3°C)	3.1°F (1.8°C)	127th Coolest	Coolest since: 2014	1912
	60.9°F (16.1°C)	57.8°F (14.3°C)	3.1°F (1.8°C)	2nd Warmest	Warmest since: 2013	2021
	Ties: 2013
Apr–Sep 2015 6-Month	57.8°F (14.3°C)	55.0°F (12.8°C)	2.8°F (1.5°C)	126th Coolest	Coolest since: 2014	1912
	57.8°F (14.3°C)	55.0°F (12.8°C)	2.8°F (1.5°C)	3rd Warmest	Warmest since: 2007	2021
	Ties: 1934, 2007
Mar–Sep 2015 7-Month	55.4°F (13.0°C)	51.9°F (11.1°C)	3.5°F (1.9°C)	128th Coolest	Coolest since: 2014	1912
	55.4°F (13.0°C)	51.9°F (11.1°C)	3.5°F (1.9°C)	1st Warmest	Warmest since: 1934	1934, 2015
	Ties: 1934
Feb–Sep 2015 8-Month	52.9°F (11.6°C)	48.7°F (9.3°C)	4.2°F (2.3°C)	128th Coolest	Coolest since: 2014	1964
	52.9°F (11.6°C)	48.7°F (9.3°C)	4.2°F (2.3°C)	1st Warmest	Warmest since: 1934	1934, 2015
	Ties: 1934
Jan–Sep 2015 9-Month	50.2°F (10.1°C)	45.7°F (7.6°C)	4.5°F (2.5°C)	127th Coolest	Coolest since: 2014	1917
Jan–Sep 2015 9-Month	50.2°F (10.1°C)	45.7°F (7.6°C)	4.5°F (2.5°C)	2nd Warmest	Warmest since: 1934	1934
Dec 2014–Sep 2015 10-Month	48.1°F (8.9°C)	43.6°F (6.4°C)	4.5°F (2.5°C)	126th Coolest	Coolest since: 2014	1917
Dec 2014–Sep 2015 10-Month	48.1°F (8.9°C)	43.6°F (6.4°C)	4.5°F (2.5°C)	2nd Warmest	Warmest since: 1934	1934
Nov 2014–Sep 2015 11-Month	46.5°F (8.1°C)	42.4°F (5.8°C)	4.1°F (2.3°C)	126th Coolest	Coolest since: 2014	1917
Nov 2014–Sep 2015 11-Month	46.5°F (8.1°C)	42.4°F (5.8°C)	4.1°F (2.3°C)	2nd Warmest	Warmest since: 1934	1934
Oct 2014–Sep 2015 12-Month	46.7°F (8.2°C)	42.6°F (5.9°C)	4.1°F (2.3°C)	126th Coolest	Coolest since: 2014	1917
Oct 2014–Sep 2015 12-Month	46.7°F (8.2°C)	42.6°F (5.9°C)	4.1°F (2.3°C)	2nd Warmest	Warmest since: 1934	1934
Apr 2014–Sep 2015 18-Month	50.0°F (10.0°C)	46.7°F (8.2°C)	3.3°F (1.8°C)	127th Coolest	Coolest since: 2014	1917
Apr 2014–Sep 2015 18-Month	50.0°F (10.0°C)	46.7°F (8.2°C)	3.3°F (1.8°C)	1st Warmest	Warmest to Date	2015
Oct 2013–Sep 2015 24-Month	45.4°F (7.4°C)	42.6°F (5.9°C)	2.8°F (1.5°C)	125th Coolest	Coolest since: 2014	1917
Oct 2013–Sep 2015 24-Month	45.4°F (7.4°C)	42.6°F (5.9°C)	2.8°F (1.5°C)	2nd Warmest	Warmest to Date	2016
Oct 2012–Sep 2015 36-Month	45.1°F (7.3°C)	42.6°F (5.9°C)	2.5°F (1.4°C)	123rd Coolest	Coolest since: 2014	1917
Oct 2012–Sep 2015 36-Month	45.1°F (7.3°C)	42.6°F (5.9°C)	2.5°F (1.4°C)	3rd Warmest	Warmest to Date	2017
Oct 2011–Sep 2015 48-Month	45.0°F (7.2°C)	42.6°F (5.9°C)	2.4°F (1.3°C)	121st Coolest	Coolest since: 2014	1913, 1917, 1932
Oct 2011–Sep 2015 48-Month	45.0°F (7.2°C)	42.6°F (5.9°C)	2.4°F (1.3°C)	4th Warmest	Warmest to Date	2018
Oct 2010–Sep 2015 60-Month	44.5°F (6.9°C)	42.5°F (5.8°C)	2.0°F (1.1°C)	119th Coolest	Coolest since: 2014	1917, 1933
	44.5°F (6.9°C)	42.5°F (5.8°C)	2.0°F (1.1°C)	5th Warmest	Warmest since: 2007	2016, 2017, 2018
	Ties: 2007

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published January 2023, retrieved on January 27, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings