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 2009

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  • Record Coolest
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  • Top 1/10
  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
December 2009
1-Month
11.5°F
(-11.4°C)
16.2°F
(-8.8°C)
-4.7°F
(-2.6°C)
19th Coolest
Coolest since:
1990
110th Warmest
Warmest since:
1917
Nov–Dec 2009
2-Month
17.2°F
(-8.2°C)
19.5°F
(-6.9°C)
-2.3°F
(-1.3°C)
27th Coolest
Coolest since:
1985
102nd Warmest
Warmest since:
1917
Ties: 1956
Oct–Dec 2009
3-Month
21.2°F
(-6.0°C)
23.6°F
(-4.7°C)
-2.4°F
(-1.3°C)
17th Coolest
Coolest since:
1985
112th Warmest
Warmest since:
1950
Sep–Dec 2009
4-Month
26.9°F
(-2.8°C)
27.7°F
(-2.4°C)
-0.8°F
(-0.4°C)
35th Coolest
Coolest since:
1985
94th Warmest
Warmest since:
1950
Ties: 1903, 1922
Aug–Dec 2009
5-Month
31.3°F
(-0.4°C)
31.7°F
(-0.2°C)
-0.4°F
(-0.2°C)
38th Coolest
Coolest since:
1985
91st Warmest
Warmest since:
2014
Ties: 1955, 1961
Jul–Dec 2009
6-Month
34.4°F
(1.3°C)
34.6°F
(1.4°C)
-0.2°F
(-0.1°C)
41st Coolest
Coolest since:
1985
88th Warmest
Warmest since:
2021
Ties: 1899, 1900, 1909, 1921, 1945
Jun–Dec 2009
7-Month
35.8°F
(2.1°C)
35.8°F
(2.1°C)
0.0°F
(0.0°C)
47th Coolest
Coolest since:
1916
82nd Warmest
Warmest since:
2021
Ties: 1913, 1936, 2005
May–Dec 2009
8-Month
35.9°F
(2.2°C)
35.9°F
(2.2°C)
0.0°F
(0.0°C)
47th Coolest
Coolest since:
1916
82nd Warmest
Warmest since:
2021
Ties: 1974, 2000
Apr–Dec 2009
9-Month
35.2°F
(1.8°C)
35.2°F
(1.8°C)
0.0°F
(0.0°C)
49th Coolest
Coolest since:
1916
80th Warmest
Warmest since:
2021
Ties: 1920, 1960, 1974, 1999
Mar–Dec 2009
10-Month
33.8°F
(1.0°C)
33.9°F
(1.1°C)
-0.1°F
(-0.1°C)
49th Coolest
Coolest since:
1916
80th Warmest
Warmest since:
2015
Ties: 1913, 1920, 1960, 1968, 2011
Feb–Dec 2009
11-Month
32.3°F
(0.2°C)
32.3°F
(0.2°C)
0.0°F
(0.0°C)
54th Coolest
Coolest since:
1985
75th Warmest
Warmest since:
2015
Ties: 2002
Jan–Dec 2009
12-Month
31.0°F
(-0.6°C)
30.8°F
(-0.7°C)
0.2°F
(0.1°C)
58th Coolest
Coolest since:
1985
71st Warmest
Warmest since:
1934, 2015
Ties: 1909, 1965, 1968, 1974, 1978, 1989, 2002
Jul 2008–Dec 2009
18-Month
32.5°F
(0.3°C)
32.1°F
(0.1°C)
0.4°F
(0.2°C)
76th Coolest
Coolest since:
1985
52nd Warmest
Warmest since:
2015
Ties: 1927, 1954, 1959, 1968, 1991
Jan 2008–Dec 2009
24-Month
30.7°F
(-0.7°C)
30.9°F
(-0.6°C)
-0.2°F
(-0.1°C)
46th Coolest
Coolest since:
1985
82nd Warmest
Warmest since:
2015, 2016
Ties: 1972, 1975
Jan 2007–Dec 2009
36-Month
31.3°F
(-0.4°C)
30.8°F
(-0.7°C)
0.5°F
(0.3°C)
84th Coolest
Coolest since:
1930, 1931
43rd Warmest
Warmest since:
2016
Ties: 1935, 1991, 1993
Jan 2006–Dec 2009
48-Month
31.5°F
(-0.3°C)
30.8°F
(-0.7°C)
0.7°F
(0.4°C)
94th Coolest
Coolest since:
1932
32nd Warmest
Warmest since:
2017
Ties: 1981, 1990, 1994
Jan 2005–Dec 2009
60-Month
31.5°F
(-0.3°C)
30.8°F
(-0.7°C)
0.7°F
(0.4°C)
96th Coolest
Coolest since:
1932, 1933
29th Warmest
Warmest since:
2018
Ties: 1983, 1991, 1994, 1997

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