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.

Montana

Average Temperature Rankings, May 2021

View Period (Months):
Download: CSV JSON XML
  • Record Coolest
  • Bottom ⅒
  • Bottom ⅓
  • Normal
  • Top ⅓
  • Top ⅒
  • Record Warmest
PeriodValue1901-2000
Mean		AnomalyRank
(1895-2022)		Warmest/Coolest
Since		Record
May 2021
1-Month		48.6°F
(9.2°C)		50.2°F
(10.1°C)		-1.6°F
(-0.9°C)		39th Coolest
Coolest since:
1907, 1927
90th Warmest
Warmest since:
1934
Ties: 1920, 2022
Apr–May 2021
2-Month		44.6°F
(7.0°C)		45.5°F
(7.5°C)		-0.9°F
(-0.5°C)		48th Coolest
Coolest since:
1975
81st Warmest
Warmest since:
1934
Ties: 1956
Mar–May 2021
3-Month		41.7°F
(5.4°C)		40.1°F
(4.5°C)		1.6°F
(0.9°C)		92nd Coolest
Coolest since:
1899
37th Warmest
Warmest since:
1910
Feb–May 2021
4-Month		34.7°F
(1.5°C)		35.4°F
(1.9°C)		-0.7°F
(-0.4°C)		52nd Coolest
Coolest since:
1899
77th Warmest
Warmest since:
1992
Ties: 1943, 1945, 1949
Jan–May 2021
5-Month		33.1°F
(0.6°C)		31.7°F
(-0.2°C)		1.4°F
(0.8°C)		83rd Coolest
Coolest since:
1899
46th Warmest
Warmest since:
1992
Dec 2020–May 2021
6-Month		32.4°F
(0.2°C)		29.9°F
(-1.2°C)		2.5°F
(1.4°C)		100th Coolest
Coolest since:
1917
28th Warmest
Warmest since:
1992
Ties: 1900, 1990, 1994
Nov 2020–May 2021
7-Month		32.4°F
(0.2°C)		29.8°F
(-1.2°C)		2.6°F
(1.4°C)		107th Coolest
Coolest since:
1899
21st Warmest
Warmest since:
1992
Ties: 1990
Oct 2020–May 2021
8-Month		33.3°F
(0.7°C)		31.5°F
(-0.3°C)		1.8°F
(1.0°C)		97th Coolest
Coolest since:
1899
31st Warmest
Warmest since:
1934, 2000
Ties: 1976
Sep 2020–May 2021
9-Month		35.9°F
(2.2°C)		34.0°F
(1.1°C)		1.9°F
(1.1°C)		101st Coolest
Coolest since:
1899
27th Warmest
Warmest since:
2016
Ties: 2003, 2017
Aug 2020–May 2021
10-Month		39.1°F
(3.9°C)		37.0°F
(2.8°C)		2.1°F
(1.1°C)		109th Coolest
Coolest since:
1917
19th Warmest
Warmest since:
1992, 2016
Ties: 1958, 1964
Jul 2020–May 2021
11-Month		41.5°F
(5.3°C)		39.6°F
(4.2°C)		1.9°F
(1.1°C)		106th Coolest
Coolest since:
1917
22nd Warmest
Warmest since:
1992, 2016
Ties: 1964, 1990
Jun 2020–May 2021
12-Month		43.0°F
(6.1°C)		41.1°F
(5.1°C)		1.9°F
(1.0°C)		108th Coolest
Coolest since:
1917
20th Warmest
Warmest since:
2016
Ties: 1958, 2005, 2017
Dec 2019–May 2021
18-Month		39.5°F
(4.2°C)		37.4°F
(3.0°C)		2.1°F
(1.2°C)		110th Coolest
Coolest since:
1917
17th Warmest
Warmest since:
2016
Ties: 1935, 1941
Jun 2019–May 2021
24-Month		42.5°F
(5.8°C)		41.1°F
(5.1°C)		1.4°F
(0.7°C)		100th Coolest
Coolest since:
1917
27th Warmest
Warmest since:
2016
Ties: 1932, 1939, 1990, 2014
Jun 2018–May 2021
36-Month		41.8°F
(5.4°C)		41.1°F
(5.1°C)		0.7°F
(0.3°C)		85th Coolest
Coolest since:
1918
41st Warmest
Warmest since:
2017
Ties: 1926, 1933, 1955, 2019
Jun 2017–May 2021
48-Month		41.8°F
(5.4°C)		41.1°F
(5.1°C)		0.7°F
(0.3°C)		84th Coolest
Coolest since:
1899, 1952
41st Warmest
Warmest since:
2016
Ties: 2020
Jun 2016–May 2021
60-Month		42.0°F
(5.6°C)		41.1°F
(5.1°C)		0.9°F
(0.5°C)		89th Coolest
Coolest since:
1952
35th Warmest
Warmest since:
2016
Ties: 1944, 1964, 1988, 1989

Citing This Page