Statewide Rankings

Parameter:

Year:

Month:

State:

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 1921

View Period (Months):

All

Download: CSV JSON XML

Record Coolest
Bottom ⅒
Bottom ⅓
Normal
Top ⅓
Top ⅒
Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
September 1921 1-Month	49.9°F (9.9°C)	53.8°F (12.1°C)	-3.9°F (-2.2°C)	13th Coolest	Coolest since: 1915	1965
	49.9°F (9.9°C)	53.8°F (12.1°C)	-3.9°F (-2.2°C)	116th Warmest	Warmest since: 1920	1998
	Ties: 1915
Aug–Sep 1921 2-Month	57.6°F (14.2°C)	59.0°F (15.0°C)	-1.4°F (-0.8°C)	30th Coolest	Coolest since: 1916	1965
	57.6°F (14.2°C)	59.0°F (15.0°C)	-1.4°F (-0.8°C)	99th Warmest	Warmest since: 1920	2022
	Ties: 1924
Jul–Sep 1921 3-Month	60.5°F (15.8°C)	61.2°F (16.2°C)	-0.7°F (-0.4°C)	35th Coolest	Coolest since: 1918	1912
	60.5°F (15.8°C)	61.2°F (16.2°C)	-0.7°F (-0.4°C)	94th Warmest	Warmest since: 1920	2022
	Ties: 1899, 1904
Jun–Sep 1921 4-Month	61.0°F (16.1°C)	60.5°F (15.8°C)	0.5°F (0.3°C)	81st Coolest	Coolest since: 1918	1993
	61.0°F (16.1°C)	60.5°F (15.8°C)	0.5°F (0.3°C)	48th Warmest	Warmest since: 1920	2021
	Ties: 1949, 1981, 2014
May–Sep 1921 5-Month	58.8°F (14.9°C)	58.4°F (14.7°C)	0.4°F (0.2°C)	71st Coolest	Coolest since: 1920	1907
May–Sep 1921 5-Month	58.8°F (14.9°C)	58.4°F (14.7°C)	0.4°F (0.2°C)	58th Warmest	Warmest since: 1919	1936
Apr–Sep 1921 6-Month	55.5°F (13.1°C)	55.5°F (13.1°C)	0.0°F (0.0°C)	58th Coolest	Coolest since: 1920	1907
	55.5°F (13.1°C)	55.5°F (13.1°C)	0.0°F (0.0°C)	71st Warmest	Warmest since: 1919	1936
	Ties: 1947, 1956, 1992, 1996, 2011, 2019
Mar–Sep 1921 7-Month	51.9°F (11.1°C)	51.7°F (10.9°C)	0.2°F (0.2°C)	61st Coolest	Coolest since: 1920	1965
	51.9°F (11.1°C)	51.7°F (10.9°C)	0.2°F (0.2°C)	68th Warmest	Warmest since: 1919	2012
	Ties: 1901, 1952, 1960
Feb–Sep 1921 8-Month	48.9°F (9.4°C)	47.9°F (8.8°C)	1.0°F (0.6°C)	87th Coolest	Coolest since: 1920	1899
	48.9°F (9.4°C)	47.9°F (8.8°C)	1.0°F (0.6°C)	42nd Warmest	Warmest since: 1910	2012, 2016
	Ties: 1980, 1986
Jan–Sep 1921 9-Month	46.1°F (7.8°C)	44.5°F (6.9°C)	1.6°F (0.9°C)	94th Coolest	Coolest since: 1920	1899
	46.1°F (7.8°C)	44.5°F (6.9°C)	1.6°F (0.9°C)	35th Warmest	Warmest since: 1919	2012
	Ties: 1941, 1999
Dec 1920–Sep 1921 10-Month	43.7°F (6.5°C)	42.1°F (5.6°C)	1.6°F (0.9°C)	93rd Coolest	Coolest since: 1920	1950
	43.7°F (6.5°C)	42.1°F (5.6°C)	1.6°F (0.9°C)	35th Warmest	Warmest since: 1919	2012
	Ties: 1977, 1999
Nov 1920–Sep 1921 11-Month	42.3°F (5.7°C)	41.0°F (5.0°C)	1.3°F (0.7°C)	93rd Coolest	Coolest since: 1920	1899
Nov 1920–Sep 1921 11-Month	42.3°F (5.7°C)	41.0°F (5.0°C)	1.3°F (0.7°C)	35th Warmest	Warmest since: 1919	2012
Oct 1920–Sep 1921 12-Month	42.4°F (5.8°C)	41.2°F (5.1°C)	1.2°F (0.7°C)	95th Coolest	Coolest since: 1920	1899
	42.4°F (5.8°C)	41.2°F (5.1°C)	1.2°F (0.7°C)	33rd Warmest	Warmest since: 1919	2012
	Ties: 1926, 1946, 1953, 1977, 2020
Apr 1920–Sep 1921 18-Month	46.4°F (8.0°C)	45.9°F (7.7°C)	0.5°F (0.3°C)	81st Coolest	Coolest since: 1920	1917
	46.4°F (8.0°C)	45.9°F (7.7°C)	0.5°F (0.3°C)	47th Warmest	Warmest since: 1919	2016
	Ties: 1900, 1937, 1944, 1967, 1983
Oct 1919–Sep 1921 24-Month	40.4°F (4.7°C)	41.1°F (5.1°C)	-0.7°F (-0.4°C)	31st Coolest	Coolest since: 1918	1917
	40.4°F (4.7°C)	41.1°F (5.1°C)	-0.7°F (-0.4°C)	96th Warmest	Warmest since: 1920	2016
	Ties: 1949, 1986
Oct 1918–Sep 1921 36-Month	41.3°F (5.2°C)	41.1°F (5.1°C)	0.2°F (0.1°C)	57th Coolest	Coolest since: 1920	1951
	41.3°F (5.2°C)	41.1°F (5.1°C)	0.2°F (0.1°C)	69th Warmest	Warmest since: 1910	2017
	Ties: 1910, 1927, 1943, 1948, 1954, 1984, 1995, 2020
Oct 1917–Sep 1921 48-Month	41.2°F (5.1°C)	41.1°F (5.1°C)	0.1°F (0.0°C)	60th Coolest	Coolest since: 1920	1952
	41.2°F (5.1°C)	41.1°F (5.1°C)	0.1°F (0.0°C)	65th Warmest	Warmest to Date	2007, 2017, 2018
	Ties: 1939, 1948, 1955, 1956, 1960, 1962
Oct 1916–Sep 1921 60-Month	40.4°F (4.7°C)	41.1°F (5.1°C)	-0.7°F (-0.4°C)	20th Coolest	Coolest since: 1920	1952
	40.4°F (4.7°C)	41.1°F (5.1°C)	-0.7°F (-0.4°C)	104th Warmest	Warmest since: 1912	2016
	Ties: 1902, 1912, 1969, 1973

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published May 2023, retrieved on June 6, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings