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 1999

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  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
May 1999
1-Month
50.4°F
(10.2°C)
51.8°F
(11.0°C)
-1.4°F
(-0.8°C)
35th Coolest
Coolest since:
1917
94th Warmest
Warmest since:
1934
Apr–May 1999
2-Month
45.2°F
(7.3°C)
47.1°F
(8.4°C)
-1.9°F
(-1.1°C)
19th Coolest
Coolest since:
1917
110th Warmest
Warmest since:
1934
Ties: 1912, 1944
Mar–May 1999
3-Month
43.3°F
(6.3°C)
42.7°F
(5.9°C)
0.6°F
(0.4°C)
77th Coolest
Coolest since:
1917
52nd Warmest
Warmest since:
2012
Ties: 1921, 2011
Feb–May 1999
4-Month
40.8°F
(4.9°C)
38.9°F
(3.8°C)
1.9°F
(1.1°C)
105th Coolest
Coolest since:
1917
24th Warmest
Warmest since:
1934
Ties: 1994, 2005
Jan–May 1999
5-Month
38.6°F
(3.7°C)
35.9°F
(2.2°C)
2.7°F
(1.5°C)
113th Coolest
Coolest since:
1917
16th Warmest
Warmest since:
1934
Dec 1998–May 1999
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: 2009, 2020
Nov 1998–May 1999
7-Month
36.7°F
(2.6°C)
34.0°F
(1.1°C)
2.7°F
(1.5°C)
117th Coolest
Coolest since:
1917
11th Warmest
Warmest since:
1934
Ties: 2022
Oct 1998–May 1999
8-Month
38.0°F
(3.3°C)
35.6°F
(2.0°C)
2.4°F
(1.3°C)
116th Coolest
Coolest since:
1917
12th Warmest
Warmest since:
1934
Ties: 2022
Sep 1998–May 1999
9-Month
40.7°F
(4.8°C)
38.0°F
(3.3°C)
2.7°F
(1.5°C)
118th Coolest
Coolest since:
1917
10th Warmest
Warmest since:
1934
Aug 1998–May 1999
10-Month
43.3°F
(6.3°C)
40.7°F
(4.8°C)
2.6°F
(1.5°C)
120th Coolest
Coolest since:
1917
8th Warmest
Warmest since:
1934
Jul 1998–May 1999
11-Month
45.6°F
(7.6°C)
43.1°F
(6.2°C)
2.5°F
(1.4°C)
118th Coolest
Coolest since:
1917
10th Warmest
Warmest since:
1934
Jun 1998–May 1999
12-Month
46.8°F
(8.2°C)
44.6°F
(7.0°C)
2.2°F
(1.2°C)
116th Coolest
Coolest since:
1917
12th Warmest
Warmest since:
1934
Ties: 1954, 2003
Dec 1997–May 1999
18-Month
42.9°F
(6.1°C)
41.1°F
(5.1°C)
1.8°F
(1.0°C)
111th Coolest
Coolest since:
1913
16th Warmest
Warmest since:
2018
Ties: 2003, 2005, 2015
Jun 1997–May 1999
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, 2009, 2014, 2020
Jun 1996–May 1999
36-Month
45.8°F
(7.7°C)
44.6°F
(7.0°C)
1.2°F
(0.7°C)
104th Coolest
Coolest since:
1914
22nd Warmest
Warmest since:
2018
Ties: 2009, 2012
Jun 1995–May 1999
48-Month
45.8°F
(7.7°C)
44.5°F
(6.9°C)
1.3°F
(0.8°C)
102nd Coolest
Coolest since:
1915
23rd Warmest
Warmest since:
2018
Jun 1994–May 1999
60-Month
45.9°F
(7.7°C)
44.6°F
(7.0°C)
1.3°F
(0.7°C)
104th Coolest
Coolest since:
1917
20th Warmest
Warmest since:
2018
Ties: 1938, 2012, 2014

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