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

Average Temperature Rankings, December 1999

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Period Value 1901-2000
Mean		 Anomaly Rank
(1895-2022)		 Warmest/Coolest
Since		 Record
December 1999
1-Month 		25.9°F
(-3.4°C)		 23.9°F
(-4.5°C)		 2.0°F
(1.1°C)		 92nd Coolest
Coolest since:
 1990
37th Warmest
Warmest since:
 1917
Ties: 1901, 1907, 1942
Nov–Dec 1999
2-Month 		32.4°F
(0.2°C)		 27.8°F
(-2.3°C)		 4.6°F
(2.5°C)		 125th Coolest
Coolest since:
 1985
4th Warmest
Warmest since:
 1917
Oct–Dec 1999
3-Month 		37.0°F
(2.8°C)		 33.2°F
(0.7°C)		 3.8°F
(2.1°C)		 126th Coolest
Coolest since:
 1985
3rd Warmest
Warmest since:
 1917
Ties: 1939
Sep–Dec 1999
4-Month 		41.3°F
(5.2°C)		 38.6°F
(3.7°C)		 2.7°F
(1.5°C)		 121st Coolest
Coolest since:
 1985
8th Warmest
Warmest since:
 1917
Ties: 1950
Aug–Dec 1999
5-Month 		46.1°F
(7.8°C)		 43.6°F
(6.4°C)		 2.5°F
(1.4°C)		 124th Coolest
Coolest since:
 1985
5th Warmest
Warmest since:
 1917
Ties: 1937, 2001
Jul–Dec 1999
6-Month 		49.0°F
(9.4°C)		 47.2°F
(8.4°C)		 1.8°F
(1.0°C)		 113th Coolest
Coolest since:
 1985
16th Warmest
Warmest since:
 1917
Ties: 1958
Jun–Dec 1999
7-Month 		50.0°F
(10.0°C)		 48.5°F
(9.2°C)		 1.5°F
(0.8°C)		 108th Coolest
Coolest since:
 1985
21st Warmest
Warmest since:
 2021
Ties: 1998
May–Dec 1999
8-Month 		49.6°F
(9.8°C)		 48.6°F
(9.2°C)		 1.0°F
(0.6°C)		 98th Coolest
Coolest since:
 1916
31st Warmest
Warmest since:
 2021
Ties: 1949, 1963, 1994, 2002, 2004
Apr–Dec 1999
9-Month 		48.3°F
(9.1°C)		 47.8°F
(8.8°C)		 0.5°F
(0.3°C)		 80th Coolest
Coolest since:
 1916
49th Warmest
Warmest since:
 2021
Ties: 1943, 1960, 1974, 2000
Mar–Dec 1999
10-Month 		46.9°F
(8.3°C)		 46.3°F
(7.9°C)		 0.6°F
(0.4°C)		 86th Coolest
Coolest since:
 1985
43rd Warmest
Warmest since:
 1934
Ties: 1901, 1941
Feb–Dec 1999
11-Month 		45.1°F
(7.3°C)		 44.5°F
(6.9°C)		 0.6°F
(0.4°C)		 84th Coolest
Coolest since:
 1985
45th Warmest
Warmest since:
 1934
Ties: 1904, 1938, 1949, 1974, 2005
Jan–Dec 1999
12-Month 		43.6°F
(6.4°C)		 42.6°F
(5.9°C)		 1.0°F
(0.5°C)		 97th Coolest
Coolest since:
 1985
32nd Warmest
Warmest since:
 1934
Ties: 1941, 1961, 1967, 2005
Jul 1998–Dec 1999
18-Month 		45.5°F
(7.5°C)		 44.1°F
(6.7°C)		 1.4°F
(0.8°C)		 112th Coolest
Coolest since:
 1985
16th Warmest
Warmest since:
 1934
Ties: 1918, 1938, 2017
Jan 1998–Dec 1999
24-Month 		44.0°F
(6.7°C)		 42.6°F
(5.9°C)		 1.4°F
(0.8°C)		 107th Coolest
Coolest since:
 1985
21st Warmest
Warmest since:
 2015, 2016
Ties: 1995
Jan 1997–Dec 1999
36-Month 		43.7°F
(6.5°C)		 42.6°F
(5.9°C)		 1.1°F
(0.6°C)		 103rd Coolest
Coolest since:
 1913
24th Warmest
Warmest since:
 2016
Ties: 1935, 1996, 2002, 2013
Jan 1996–Dec 1999
48-Month 		43.6°F
(6.4°C)		 42.6°F
(5.9°C)		 1.0°F
(0.5°C)		 104th Coolest
Coolest since:
 1985
22nd Warmest
Warmest since:
 2017
Ties: 1940, 1942, 1992, 1997, 1998, 2009, 2013
Jan 1995–Dec 1999
60-Month 		43.6°F
(6.4°C)		 42.6°F
(5.9°C)		 1.0°F
(0.5°C)		 103rd Coolest
Coolest since:
 1913, 1916
22nd Warmest
Warmest since:
 2016, 2018
Ties: 1941, 1991, 2009

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