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.

Montana

Average Temperature Rankings, September 1917

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
September 1917 1-Month	55.2°F (12.9°C)	53.8°F (12.1°C)	1.4°F (0.8°C)	84th Coolest	Coolest since: 1916	1965
	55.2°F (12.9°C)	53.8°F (12.1°C)	1.4°F (0.8°C)	45th Warmest	Warmest since: 1909	1998
	Ties: 2017
Aug–Sep 1917 2-Month	59.2°F (15.1°C)	59.0°F (15.0°C)	0.2°F (0.1°C)	66th Coolest	Coolest since: 1916	1965
	59.2°F (15.1°C)	59.0°F (15.0°C)	0.2°F (0.1°C)	63rd Warmest	Warmest since: 1913	2022
	Ties: 1933
Jul–Sep 1917 3-Month	62.4°F (16.9°C)	61.2°F (16.2°C)	1.2°F (0.7°C)	89th Coolest	Coolest since: 1916	1912
	62.4°F (16.9°C)	61.2°F (16.2°C)	1.2°F (0.7°C)	40th Warmest	Warmest since: 1905	2022
	Ties: 1905, 1976, 1997
Jun–Sep 1917 4-Month	60.7°F (15.9°C)	60.4°F (15.8°C)	0.3°F (0.1°C)	62nd Coolest	Coolest since: 1916	1993
	60.7°F (15.9°C)	60.4°F (15.8°C)	0.3°F (0.1°C)	67th Warmest	Warmest since: 1909	2021
	Ties: 1987
May–Sep 1917 5-Month	58.1°F (14.5°C)	58.5°F (14.7°C)	-0.4°F (-0.2°C)	46th Coolest	Coolest since: 1916	1907
	58.1°F (14.5°C)	58.5°F (14.7°C)	-0.4°F (-0.2°C)	83rd Warmest	Warmest since: 1914	1936
	Ties: 1898, 1953
Apr–Sep 1917 6-Month	54.4°F (12.4°C)	55.5°F (13.1°C)	-1.1°F (-0.7°C)	24th Coolest	Coolest since: 1916	1907
	54.4°F (12.4°C)	55.5°F (13.1°C)	-1.1°F (-0.7°C)	105th Warmest	Warmest since: 1914	1936
	Ties: 1920, 1953
Mar–Sep 1917 7-Month	49.5°F (9.7°C)	51.7°F (10.9°C)	-2.2°F (-1.2°C)	9th Coolest	Coolest since: 1912	1965
	49.5°F (9.7°C)	51.7°F (10.9°C)	-2.2°F (-1.2°C)	120th Warmest	Warmest since: 1916	2012
	Ties: 1896
Feb–Sep 1917 8-Month	44.9°F (7.2°C)	47.9°F (8.8°C)	-3.0°F (-1.6°C)	5th Coolest	Coolest since: 1912	1899
	44.9°F (7.2°C)	47.9°F (8.8°C)	-3.0°F (-1.6°C)	124th Warmest	Warmest since: 1916	2012, 2016
	Ties: 1912
Jan–Sep 1917 9-Month	41.4°F (5.2°C)	44.5°F (6.9°C)	-3.1°F (-1.7°C)	6th Coolest	Coolest since: 1916	1899
	41.4°F (5.2°C)	44.5°F (6.9°C)	-3.1°F (-1.7°C)	123rd Warmest	Warmest since: 1915	2012
	Ties: 1912
Dec 1916–Sep 1917 10-Month	38.2°F (3.4°C)	42.0°F (5.6°C)	-3.8°F (-2.2°C)	3rd Coolest	Coolest since: 1899	1950
Dec 1916–Sep 1917 10-Month	38.2°F (3.4°C)	42.0°F (5.6°C)	-3.8°F (-2.2°C)	125th Warmest	Warmest since: 1916	2012
Nov 1916–Sep 1917 11-Month	37.3°F (2.9°C)	41.0°F (5.0°C)	-3.7°F (-2.1°C)	2nd Coolest	Coolest since: 1899	1899
Nov 1916–Sep 1917 11-Month	37.3°F (2.9°C)	41.0°F (5.0°C)	-3.7°F (-2.1°C)	126th Warmest	Warmest since: 1916	2012
Oct 1916–Sep 1917 12-Month	37.4°F (3.0°C)	41.1°F (5.1°C)	-3.7°F (-2.1°C)	2nd Coolest	Coolest since: 1899	1899
Oct 1916–Sep 1917 12-Month	37.4°F (3.0°C)	41.1°F (5.1°C)	-3.7°F (-2.1°C)	126th Warmest	Warmest since: 1916	2012
Apr 1916–Sep 1917 18-Month	42.8°F (6.0°C)	45.9°F (7.7°C)	-3.1°F (-1.7°C)	1st Coolest	Coolest since: 1917	1917
Apr 1916–Sep 1917 18-Month	42.8°F (6.0°C)	45.9°F (7.7°C)	-3.1°F (-1.7°C)	127th Warmest	Warmest since: 1916	2016
Oct 1915–Sep 1917 24-Month	38.2°F (3.4°C)	41.1°F (5.1°C)	-2.9°F (-1.7°C)	1st Coolest	Coolest since: 1917	1917
Oct 1915–Sep 1917 24-Month	38.2°F (3.4°C)	41.1°F (5.1°C)	-2.9°F (-1.7°C)	126th Warmest	Warmest since: 1916	2016
Oct 1914–Sep 1917 36-Month	39.0°F (3.9°C)	41.1°F (5.1°C)	-2.1°F (-1.2°C)	4th Coolest	Coolest since: 1899	1951
Oct 1914–Sep 1917 36-Month	39.0°F (3.9°C)	41.1°F (5.1°C)	-2.1°F (-1.2°C)	122nd Warmest	Warmest since: 1916	2017
Oct 1913–Sep 1917 48-Month	39.7°F (4.3°C)	41.1°F (5.1°C)	-1.4°F (-0.8°C)	5th Coolest	Coolest since: 1899	1952
	39.7°F (4.3°C)	41.1°F (5.1°C)	-1.4°F (-0.8°C)	120th Warmest	Warmest since: 1916	2007, 2017, 2018
	Ties: 1950, 1953
Oct 1912–Sep 1917 60-Month	39.8°F (4.3°C)	41.1°F (5.1°C)	-1.3°F (-0.8°C)	4th Coolest	Coolest since: 1917	1952
	39.8°F (4.3°C)	41.1°F (5.1°C)	-1.3°F (-0.8°C)	120th Warmest	Warmest since: 1916	2016
	Ties: 1920

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published January 2023, retrieved on February 3, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings