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 1991

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  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
May 1991
1-Month
53.5°F
(11.9°C)
51.8°F
(11.0°C)
1.7°F
(0.9°C)
94th Coolest
Coolest since:
1917
35th Warmest
Warmest since:
1934
Ties: 1900, 1962, 1970, 2007
Apr–May 1991
2-Month
47.7°F
(8.7°C)
47.2°F
(8.4°C)
0.5°F
(0.3°C)
68th Coolest
Coolest since:
1917
61st Warmest
Warmest since:
1934
Ties: 1998
Mar–May 1991
3-Month
43.4°F
(6.3°C)
42.6°F
(5.9°C)
0.8°F
(0.4°C)
79th Coolest
Coolest since:
1917
50th Warmest
Warmest since:
2012
Ties: 1956
Feb–May 1991
4-Month
40.7°F
(4.8°C)
38.9°F
(3.8°C)
1.8°F
(1.0°C)
102nd Coolest
Coolest since:
1917
27th Warmest
Warmest since:
1934
Ties: 1907
Jan–May 1991
5-Month
36.9°F
(2.7°C)
35.8°F
(2.1°C)
1.1°F
(0.6°C)
90th Coolest
Coolest since:
1917
39th Warmest
Warmest since:
1934
Ties: 1900, 1995, 2007
Dec 1990–May 1991
6-Month
34.2°F
(1.2°C)
34.1°F
(1.2°C)
0.1°F
(0.0°C)
56th Coolest
Coolest since:
1917
72nd Warmest
Warmest since:
1934
Ties: 1945, 1961, 1971
Nov 1990–May 1991
7-Month
34.5°F
(1.4°C)
34.0°F
(1.1°C)
0.5°F
(0.3°C)
71st Coolest
Coolest since:
1917
57th Warmest
Warmest since:
1934
Ties: 1921, 1985, 2001, 2013
Oct 1990–May 1991
8-Month
36.0°F
(2.2°C)
35.5°F
(1.9°C)
0.5°F
(0.3°C)
71st Coolest
Coolest since:
1917
57th Warmest
Warmest since:
1934
Ties: 1916, 1928, 1945, 1974, 2013
Sep 1990–May 1991
9-Month
38.8°F
(3.8°C)
37.9°F
(3.3°C)
0.9°F
(0.5°C)
87th Coolest
Coolest since:
1917
41st Warmest
Warmest since:
1934
Ties: 1946, 1956, 1959, 1998
Aug 1990–May 1991
10-Month
41.4°F
(5.2°C)
40.7°F
(4.8°C)
0.7°F
(0.4°C)
84th Coolest
Coolest since:
1917
44th Warmest
Warmest since:
1934
Ties: 1927, 1941, 1972, 1982, 1998
Jul 1990–May 1991
11-Month
43.7°F
(6.5°C)
43.1°F
(6.2°C)
0.6°F
(0.3°C)
81st Coolest
Coolest since:
1917
47th Warmest
Warmest since:
1934
Ties: 1907, 1972, 2008, 2019
Jun 1990–May 1991
12-Month
45.5°F
(7.5°C)
44.6°F
(7.0°C)
0.9°F
(0.5°C)
88th Coolest
Coolest since:
1917
40th Warmest
Warmest since:
1934
Ties: 1941, 1963
Dec 1989–May 1991
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, 2008, 2009
Jun 1989–May 1991
24-Month
45.4°F
(7.4°C)
44.6°F
(7.0°C)
0.8°F
(0.4°C)
91st Coolest
Coolest since:
1913
36th Warmest
Warmest since:
2018
Ties: 1911, 1995
Jun 1988–May 1991
36-Month
45.6°F
(7.6°C)
44.6°F
(7.0°C)
1.0°F
(0.6°C)
97th Coolest
Coolest since:
1914
29th Warmest
Warmest since:
2018
Ties: 1955, 1992, 1996
Jun 1987–May 1991
48-Month
45.3°F
(7.4°C)
44.5°F
(6.9°C)
0.8°F
(0.5°C)
90th Coolest
Coolest since:
1915
35th Warmest
Warmest since:
2018
Ties: 1983
Jun 1986–May 1991
60-Month
45.3°F
(7.4°C)
44.6°F
(7.0°C)
0.7°F
(0.4°C)
92nd Coolest
Coolest since:
1917
32nd Warmest
Warmest since:
2018
Ties: 1935, 1957, 1982, 1996

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