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, May 1899

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
May 1899 1-Month	45.4°F (7.4°C)	50.2°F (10.1°C)	-4.8°F (-2.7°C)	3rd Coolest	Coolest to Date	1907, 1927
May 1899 1-Month	45.4°F (7.4°C)	50.2°F (10.1°C)	-4.8°F (-2.7°C)	126th Warmest	Warmest since: 1898	1934
Apr–May 1899 2-Month	41.2°F (5.1°C)	45.5°F (7.5°C)	-4.3°F (-2.4°C)	6th Coolest	Coolest to Date	1975
Apr–May 1899 2-Month	41.2°F (5.1°C)	45.5°F (7.5°C)	-4.3°F (-2.4°C)	123rd Warmest	Warmest since: 1898	1934
Mar–May 1899 3-Month	33.1°F (0.6°C)	40.1°F (4.5°C)	-7.0°F (-3.9°C)	1st Coolest	Coolest to Date	1899
Mar–May 1899 3-Month	33.1°F (0.6°C)	40.1°F (4.5°C)	-7.0°F (-3.9°C)	128th Warmest	Warmest since: 1898	1910
Feb–May 1899 4-Month	26.5°F (-3.1°C)	35.4°F (1.9°C)	-8.9°F (-5.0°C)	1st Coolest	Coolest to Date	1899
Feb–May 1899 4-Month	26.5°F (-3.1°C)	35.4°F (1.9°C)	-8.9°F (-5.0°C)	128th Warmest	Warmest since: 1898	1992
Jan–May 1899 5-Month	24.5°F (-4.2°C)	31.7°F (-0.2°C)	-7.2°F (-4.0°C)	1st Coolest	Coolest to Date	1899
Jan–May 1899 5-Month	24.5°F (-4.2°C)	31.7°F (-0.2°C)	-7.2°F (-4.0°C)	128th Warmest	Warmest since: 1898	1992
Dec 1898–May 1899 6-Month	23.5°F (-4.7°C)	29.9°F (-1.2°C)	-6.4°F (-3.5°C)	2nd Coolest	Coolest to Date	1917
Dec 1898–May 1899 6-Month	23.5°F (-4.7°C)	29.9°F (-1.2°C)	-6.4°F (-3.5°C)	126th Warmest	Warmest since: 1898	1992
Nov 1898–May 1899 7-Month	23.8°F (-4.6°C)	29.8°F (-1.2°C)	-6.0°F (-3.4°C)	1st Coolest	Coolest to Date	1899
Nov 1898–May 1899 7-Month	23.8°F (-4.6°C)	29.8°F (-1.2°C)	-6.0°F (-3.4°C)	127th Warmest	Warmest since: 1898	1992
Oct 1898–May 1899 8-Month	25.5°F (-3.6°C)	31.5°F (-0.3°C)	-6.0°F (-3.3°C)	1st Coolest	Coolest to Date	1899
Oct 1898–May 1899 8-Month	25.5°F (-3.6°C)	31.5°F (-0.3°C)	-6.0°F (-3.3°C)	127th Warmest	Warmest since: 1898	1934, 2000
Sep 1898–May 1899 9-Month	28.6°F (-1.9°C)	34.0°F (1.1°C)	-5.4°F (-3.0°C)	1st Coolest	Coolest to Date	1899
Sep 1898–May 1899 9-Month	28.6°F (-1.9°C)	34.0°F (1.1°C)	-5.4°F (-3.0°C)	127th Warmest	Warmest since: 1898	2016
Aug 1898–May 1899 10-Month	32.3°F (0.2°C)	37.0°F (2.8°C)	-4.7°F (-2.6°C)	2nd Coolest	Coolest to Date	1917
Aug 1898–May 1899 10-Month	32.3°F (0.2°C)	37.0°F (2.8°C)	-4.7°F (-2.6°C)	126th Warmest	Warmest since: 1898	1992, 2016
Jul 1898–May 1899 11-Month	35.2°F (1.8°C)	39.6°F (4.2°C)	-4.4°F (-2.4°C)	2nd Coolest	Coolest to Date	1917
Jul 1898–May 1899 11-Month	35.2°F (1.8°C)	39.6°F (4.2°C)	-4.4°F (-2.4°C)	126th Warmest	Warmest since: 1898	1992, 2016
Jun 1898–May 1899 12-Month	37.1°F (2.8°C)	41.1°F (5.1°C)	-4.0°F (-2.3°C)	2nd Coolest	Coolest to Date	1917
Jun 1898–May 1899 12-Month	37.1°F (2.8°C)	41.1°F (5.1°C)	-4.0°F (-2.3°C)	126th Warmest	Warmest since: 1898	2016
Dec 1897–May 1899 18-Month	34.5°F (1.4°C)	37.4°F (3.0°C)	-2.9°F (-1.6°C)	4th Coolest	Coolest to Date	1917
Dec 1897–May 1899 18-Month	34.5°F (1.4°C)	37.4°F (3.0°C)	-2.9°F (-1.6°C)	123rd Warmest	Warmest since: 1898	2016
Jun 1897–May 1899 24-Month	38.7°F (3.7°C)	41.1°F (5.1°C)	-2.4°F (-1.4°C)	3rd Coolest	Coolest to Date	1917
	38.7°F (3.7°C)	41.1°F (5.1°C)	-2.4°F (-1.4°C)	124th Warmest	Warmest since: 1898	2016
	Ties: 1913
Jun 1896–May 1899 36-Month	38.9°F (3.8°C)	41.1°F (5.1°C)	-2.2°F (-1.3°C)	3rd Coolest	Coolest to Date	1918
Jun 1896–May 1899 36-Month	38.9°F (3.8°C)	41.1°F (5.1°C)	-2.2°F (-1.3°C)	123rd Warmest	Warmest since: 1898	2017
Jun 1895–May 1899 48-Month	39.0°F (3.9°C)	41.1°F (5.1°C)	-2.1°F (-1.2°C)	1st Coolest	Coolest to Date	1899, 1952
	39.0°F (3.9°C)	41.1°F (5.1°C)	-2.1°F (-1.2°C)	124th Warmest	Warmest to Date	2016
	Ties: 1952

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published March 2023, retrieved on March 26, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings