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.

Colorado

Average Temperature Rankings, December 1998

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Period Value 1901-2000
Mean		 Anomaly Rank
(1895-2022)		 Warmest/Coolest
Since		 Record
December 1998
1-Month 		26.5°F
(-3.1°C)		 25.2°F
(-3.8°C)		 1.3°F
(0.7°C)		 80th Coolest
Coolest since:
 1909
49th Warmest
Warmest since:
 1980
Nov–Dec 1998
2-Month 		32.1°F
(0.1°C)		 29.4°F
(-1.4°C)		 2.7°F
(1.5°C)		 105th Coolest
Coolest since:
 1972
24th Warmest
Warmest since:
 2021
Ties: 1906, 1954
Oct–Dec 1998
3-Month 		37.0°F
(2.8°C)		 35.1°F
(1.7°C)		 1.9°F
(1.1°C)		 98th Coolest
Coolest since:
 1898
31st Warmest
Warmest since:
 2021
Ties: 1901, 1942
Sep–Dec 1998
4-Month 		43.4°F
(6.3°C)		 40.7°F
(4.8°C)		 2.7°F
(1.5°C)		 120th Coolest
Coolest since:
 1898
9th Warmest
Warmest since:
 2021
Ties: 1921, 1950, 1980
Aug–Dec 1998
5-Month 		48.0°F
(8.9°C)		 45.6°F
(7.6°C)		 2.4°F
(1.3°C)		 121st Coolest
Coolest since:
 1898
8th Warmest
Warmest since:
 2021
Ties: 1939
Jul–Dec 1998
6-Month 		51.5°F
(10.8°C)		 49.1°F
(9.5°C)		 2.4°F
(1.3°C)		 118th Coolest
Coolest since:
 1898, 1912
11th Warmest
Warmest since:
 2021
Ties: 1980
Jun–Dec 1998
7-Month 		52.6°F
(11.4°C)		 50.9°F
(10.5°C)		 1.7°F
(0.9°C)		 108th Coolest
Coolest since:
 1912
21st Warmest
Warmest since:
 2021
Ties: 1994, 2005
May–Dec 1998
8-Month 		52.8°F
(11.6°C)		 51.0°F
(10.6°C)		 1.8°F
(1.0°C)		 111th Coolest
Coolest since:
 1912
18th Warmest
Warmest since:
 2021
Ties: 1958, 1980, 2015, 2022
Apr–Dec 1998
9-Month 		51.5°F
(10.8°C)		 50.0°F
(10.0°C)		 1.5°F
(0.8°C)		 104th Coolest
Coolest since:
 1912
25th Warmest
Warmest since:
 2021
Ties: 1910
Mar–Dec 1998
10-Month 		49.7°F
(9.8°C)		 48.4°F
(9.1°C)		 1.3°F
(0.7°C)		 99th Coolest
Coolest since:
 1912
30th Warmest
Warmest since:
 2012
Ties: 1989, 1999, 2011
Feb–Dec 1998
11-Month 		47.9°F
(8.8°C)		 46.5°F
(8.1°C)		 1.4°F
(0.7°C)		 105th Coolest
Coolest since:
 1912
24th Warmest
Warmest since:
 2012, 2017
Ties: 1940
Jan–Dec 1998
12-Month 		46.3°F
(7.9°C)		 44.6°F
(7.0°C)		 1.7°F
(0.9°C)		 111th Coolest
Coolest since:
 1912
18th Warmest
Warmest since:
 2012
Ties: 1977, 1986
Jul 1997–Dec 1998
18-Month 		47.2°F
(8.4°C)		 46.1°F
(7.8°C)		 1.1°F
(0.6°C)		 101st Coolest
Coolest since:
 1912
27th Warmest
Warmest since:
 1934
Ties: 1935, 1995
Jan 1997–Dec 1998
24-Month 		45.5°F
(7.5°C)		 44.6°F
(7.0°C)		 0.9°F
(0.5°C)		 94th Coolest
Coolest since:
 1913
34th Warmest
Warmest since:
 2017
Ties: 1940, 1977, 1990
Jan 1996–Dec 1998
36-Month 		45.6°F
(7.6°C)		 44.6°F
(7.0°C)		 1.0°F
(0.6°C)		 99th Coolest
Coolest since:
 1913, 1914
28th Warmest
Warmest since:
 2017
Ties: 1982, 1988, 2011
Jan 1995–Dec 1998
48-Month 		45.6°F
(7.6°C)		 44.6°F
(7.0°C)		 1.0°F
(0.6°C)		 100th Coolest
Coolest since:
 1915
26th Warmest
Warmest since:
 2018
Ties: 1935, 1956, 2010
Jan 1994–Dec 1998
60-Month 		45.8°F
(7.7°C)		 44.6°F
(7.0°C)		 1.2°F
(0.7°C)		 103rd Coolest
Coolest since:
 1916
22nd Warmest
Warmest to Date
 2018
Ties: 1999, 2010

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