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, May 2009

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  • Record Coolest
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  • Top 1/3
  • Top 1/10
  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
May 2009
1-Month
54.5°F
(12.5°C)
51.8°F
(11.0°C)
2.7°F
(1.5°C)
110th Coolest
Coolest since:
1917
19th Warmest
Warmest since:
1934
Ties: 1939
Apr–May 2009
2-Month
48.2°F
(9.0°C)
47.1°F
(8.4°C)
1.1°F
(0.6°C)
87th Coolest
Coolest since:
1917
42nd Warmest
Warmest since:
1934
Ties: 1910, 1949, 1960, 1966
Mar–May 2009
3-Month
44.5°F
(6.9°C)
42.6°F
(5.9°C)
1.9°F
(1.0°C)
102nd Coolest
Coolest since:
1917
27th Warmest
Warmest since:
2012
Ties: 1963
Feb–May 2009
4-Month
41.4°F
(5.2°C)
38.8°F
(3.8°C)
2.6°F
(1.4°C)
116th Coolest
Coolest since:
1917
13th Warmest
Warmest since:
1934
Ties: 1963, 2006
Jan–May 2009
5-Month
38.8°F
(3.8°C)
35.8°F
(2.1°C)
3.0°F
(1.7°C)
117th Coolest
Coolest since:
1917
12th Warmest
Warmest since:
1934
Dec 2008–May 2009
6-Month
36.6°F
(2.6°C)
34.1°F
(1.2°C)
2.5°F
(1.4°C)
112th Coolest
Coolest since:
1917
16th Warmest
Warmest since:
1934
Ties: 1999, 2020
Nov 2008–May 2009
7-Month
36.8°F
(2.7°C)
34.0°F
(1.1°C)
2.8°F
(1.6°C)
120th Coolest
Coolest since:
1917
8th Warmest
Warmest since:
1934
Ties: 1954, 2015
Oct 2008–May 2009
8-Month
38.2°F
(3.4°C)
35.6°F
(2.0°C)
2.6°F
(1.4°C)
118th Coolest
Coolest since:
1917
10th Warmest
Warmest since:
1934
Ties: 1954
Sep 2008–May 2009
9-Month
40.3°F
(4.6°C)
38.0°F
(3.3°C)
2.3°F
(1.3°C)
114th Coolest
Coolest since:
1917
14th Warmest
Warmest since:
1934
Aug 2008–May 2009
10-Month
42.8°F
(6.0°C)
40.7°F
(4.8°C)
2.1°F
(1.2°C)
114th Coolest
Coolest since:
1917
14th Warmest
Warmest since:
1934
Ties: 1996
Jul 2008–May 2009
11-Month
45.2°F
(7.3°C)
43.1°F
(6.2°C)
2.1°F
(1.1°C)
114th Coolest
Coolest since:
1917
14th Warmest
Warmest since:
1934
Jun 2008–May 2009
12-Month
46.6°F
(8.1°C)
44.6°F
(7.0°C)
2.0°F
(1.1°C)
113th Coolest
Coolest since:
1917
15th Warmest
Warmest since:
1934
Ties: 2002, 2021
Dec 2007–May 2009
18-Month
42.0°F
(5.6°C)
41.1°F
(5.1°C)
0.9°F
(0.5°C)
92nd Coolest
Coolest since:
1913
35th Warmest
Warmest since:
2018
Ties: 1990, 1991, 2008
Jun 2007–May 2009
24-Month
46.0°F
(7.8°C)
44.6°F
(7.0°C)
1.4°F
(0.8°C)
107th Coolest
Coolest since:
1913
20th Warmest
Warmest since:
2018
Ties: 1996, 1999, 2014, 2020
Jun 2006–May 2009
36-Month
45.8°F
(7.7°C)
44.5°F
(6.9°C)
1.3°F
(0.8°C)
104th Coolest
Coolest since:
1914
22nd Warmest
Warmest since:
2018
Ties: 1999, 2012
Jun 2005–May 2009
48-Month
46.1°F
(7.8°C)
44.5°F
(6.9°C)
1.6°F
(0.9°C)
107th Coolest
Coolest since:
1915
18th Warmest
Warmest since:
2018
Jun 2004–May 2009
60-Month
46.1°F
(7.8°C)
44.6°F
(7.0°C)
1.5°F
(0.8°C)
109th Coolest
Coolest since:
1917
15th Warmest
Warmest since:
2018
Ties: 2000, 2001, 2008

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