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.

Idaho

Minimum Temperature Rankings, December 2020

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Period Value 1901-2000
Mean		 Anomaly Rank
(1895-2022)		 Warmest/Coolest
Since		 Record
December 2020
1-Month 		17.3°F
(-8.2°C)		 16.2°F
(-8.8°C)		 1.1°F
(0.6°C)		 76th Coolest
Coolest since:
 1990
53rd Warmest
Warmest since:
 1917
Ties: 1993
Nov–Dec 2020
2-Month 		20.3°F
(-6.5°C)		 19.5°F
(-6.9°C)		 0.8°F
(0.4°C)		 73rd Coolest
Coolest since:
 1985
56th Warmest
Warmest since:
 1917
Ties: 1968, 2003
Oct–Dec 2020
3-Month 		24.3°F
(-4.3°C)		 23.6°F
(-4.7°C)		 0.7°F
(0.4°C)		 75th Coolest
Coolest since:
 1985
54th Warmest
Warmest since:
 1950
Ties: 2002
Sep–Dec 2020
4-Month 		28.9°F
(-1.7°C)		 27.7°F
(-2.4°C)		 1.2°F
(0.7°C)		 91st Coolest
Coolest since:
 1985
38th Warmest
Warmest since:
 1950
Ties: 1897, 1900, 1918, 1941, 2017
Aug–Dec 2020
5-Month 		33.3°F
(0.7°C)		 31.7°F
(-0.2°C)		 1.6°F
(0.9°C)		 109th Coolest
Coolest since:
 1985
20th Warmest
Warmest since:
 2014
Ties: 1933, 1953, 2017
Jul–Dec 2020
6-Month 		36.0°F
(2.2°C)		 34.6°F
(1.4°C)		 1.4°F
(0.8°C)		 105th Coolest
Coolest since:
 1985
24th Warmest
Warmest since:
 2021
Ties: 2013
Jun–Dec 2020
7-Month 		37.1°F
(2.8°C)		 35.8°F
(2.1°C)		 1.3°F
(0.7°C)		 105th Coolest
Coolest since:
 1916
24th Warmest
Warmest since:
 2021
Ties: 1973
May–Dec 2020
8-Month 		37.2°F
(2.9°C)		 35.9°F
(2.2°C)		 1.3°F
(0.7°C)		 109th Coolest
Coolest since:
 1916
20th Warmest
Warmest since:
 2021
Ties: 1925, 1977
Apr–Dec 2020
9-Month 		36.2°F
(2.3°C)		 35.1°F
(1.7°C)		 1.1°F
(0.6°C)		 104th Coolest
Coolest since:
 1916
25th Warmest
Warmest since:
 2021
Ties: 1906
Mar–Dec 2020
10-Month 		35.1°F
(1.7°C)		 33.9°F
(1.1°C)		 1.2°F
(0.6°C)		 108th Coolest
Coolest since:
 1916
21st Warmest
Warmest since:
 2015
Ties: 1963, 2006
Feb–Dec 2020
11-Month 		33.3°F
(0.7°C)		 32.3°F
(0.2°C)		 1.0°F
(0.5°C)		 97th Coolest
Coolest since:
 1985
32nd Warmest
Warmest since:
 2015
Ties: 1907, 1915, 2000
Jan–Dec 2020
12-Month 		32.2°F
(0.1°C)		 30.8°F
(-0.7°C)		 1.4°F
(0.8°C)		 107th Coolest
Coolest since:
 1985
22nd Warmest
Warmest since:
 1934, 2015
Ties: 1953, 1994
Jul 2019–Dec 2020
18-Month 		33.2°F
(0.7°C)		 32.1°F
(0.1°C)		 1.1°F
(0.6°C)		 104th Coolest
Coolest since:
 1985
24th Warmest
Warmest since:
 2015
Ties: 1995, 2000, 2005
Jan 2019–Dec 2020
24-Month 		31.9°F
(-0.1°C)		 30.8°F
(-0.7°C)		 1.1°F
(0.6°C)		 102nd Coolest
Coolest since:
 1985
26th Warmest
Warmest since:
 2015, 2016
Ties: 1996, 2006
Jan 2018–Dec 2020
36-Month 		32.2°F
(0.1°C)		 30.8°F
(-0.7°C)		 1.4°F
(0.8°C)		 115th Coolest
Coolest since:
 1930, 1931
12th Warmest
Warmest since:
 2016
Ties: 1940, 2000, 2003
Jan 2017–Dec 2020
48-Month 		32.3°F
(0.2°C)		 30.8°F
(-0.7°C)		 1.5°F
(0.9°C)		 118th Coolest
Coolest since:
 1932
8th Warmest
Warmest since:
 2017
Ties: 1941, 2004
Jan 2016–Dec 2020
60-Month 		32.6°F
(0.3°C)		 30.8°F
(-0.7°C)		 1.8°F
(1.0°C)		 120th Coolest
Coolest since:
 1932, 1933
5th Warmest
Warmest since:
 2018
Ties: 2015

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