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, April 2018

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PeriodValue1901-2000
Mean		AnomalyRank
(1895-2023)		Warmest/Coolest
Since		Record
April 2018
1-Month		44.0°F
(6.7°C)		42.5°F
(5.8°C)		1.5°F
(0.9°C)		92nd Coolest
Coolest since:
1920
38th Warmest
Warmest since:
1943, 1946
Ties: 1902, 1949
Mar–Apr 2018
2-Month		40.9°F
(4.9°C)		38.1°F
(3.4°C)		2.8°F
(1.5°C)		107th Coolest
Coolest since:
1917
23rd Warmest
Warmest since:
2012
Ties: 1990, 1994
Feb–Apr 2018
3-Month		36.8°F
(2.7°C)		34.5°F
(1.4°C)		2.3°F
(1.3°C)		106th Coolest
Coolest since:
1903
24th Warmest
Warmest since:
2017
Ties: 1995
Jan–Apr 2018
4-Month		35.0°F
(1.7°C)		31.8°F
(-0.1°C)		3.2°F
(1.8°C)		118th Coolest
Coolest since:
1917, 1937
12th Warmest
Warmest since:
1986
Ties: 1972, 2003, 2005, 2006
Dec 2017–Apr 2018
5-Month		34.0°F
(1.1°C)		30.5°F
(-0.8°C)		3.5°F
(1.9°C)		120th Coolest
Coolest since:
1899
9th Warmest
Warmest since:
1934, 1981
Nov 2017–Apr 2018
6-Month		35.3°F
(1.8°C)		31.0°F
(-0.6°C)		4.3°F
(2.4°C)		124th Coolest
Coolest since:
1899
5th Warmest
Warmest since:
1934
Oct 2017–Apr 2018
7-Month		36.9°F
(2.7°C)		33.2°F
(0.7°C)		3.7°F
(2.0°C)		124th Coolest
Coolest since:
1899
5th Warmest
Warmest since:
1934
Sep 2017–Apr 2018
8-Month		39.7°F
(4.3°C)		36.2°F
(2.3°C)		3.5°F
(2.0°C)		124th Coolest
Coolest since:
1899
5th Warmest
Warmest since:
1934
Ties: 2015
Aug 2017–Apr 2018
9-Month		42.4°F
(5.8°C)		39.5°F
(4.2°C)		2.9°F
(1.6°C)		122nd Coolest
Coolest since:
1899
7th Warmest
Warmest since:
1934
Jul 2017–Apr 2018
10-Month		45.1°F
(7.3°C)		42.2°F
(5.7°C)		2.9°F
(1.6°C)		124th Coolest
Coolest since:
1899
5th Warmest
Warmest since:
1934
Ties: 1999, 2012, 2015, 2022
Jun 2017–Apr 2018
11-Month		46.9°F
(8.3°C)		43.9°F
(6.6°C)		3.0°F
(1.7°C)		124th Coolest
Coolest since:
1913
5th Warmest
Warmest since:
1934, 2017
May 2017–Apr 2018
12-Month		47.3°F
(8.5°C)		44.6°F
(7.0°C)		2.7°F
(1.5°C)		125th Coolest
Coolest since:
1913
4th Warmest
Warmest since:
1934, 2017
Nov 2016–Apr 2018
18-Month		43.4°F
(6.3°C)		40.1°F
(4.5°C)		3.3°F
(1.8°C)		127th Coolest
Coolest since:
1913
1st Warmest
Warmest to Date
2018
May 2016–Apr 2018
24-Month		47.6°F
(8.7°C)		44.6°F
(7.0°C)		3.0°F
(1.7°C)		127th Coolest
Coolest since:
1913
1st Warmest
Warmest to Date
2018
May 2015–Apr 2018
36-Month		47.4°F
(8.6°C)		44.6°F
(7.0°C)		2.8°F
(1.6°C)		126th Coolest
Coolest since:
1914
1st Warmest
Warmest to Date
2018
May 2014–Apr 2018
48-Month		47.3°F
(8.5°C)		44.6°F
(7.0°C)		2.7°F
(1.5°C)		125th Coolest
Coolest since:
1915
1st Warmest
Warmest to Date
2018
May 2013–Apr 2018
60-Month		47.0°F
(8.3°C)		44.5°F
(6.9°C)		2.5°F
(1.4°C)		123rd Coolest
Coolest since:
1917
2nd Warmest
Warmest to Date
2019

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