Regional Rankings

Regional Data Info
Please note, Palmer Indices are not available for NWS Regions. Degree Days are not available for Great Plains, Souther Plains and Gulf Coast Rockies and Westward, River Basins, or Agricultural Belts. Palmer Drought Severity Index (PDSI), Palmer Hydrological Drought Index (PHDI), and Palmer Modified Drought Index (PMDI) are not offered for multiple-month time scales.

Upper Colorado River Basin

Average Temperature Rankings, January 1939

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PeriodValue1901-2000
Mean
AnomalyRank
(1895-2023)
Warmest/Coolest
Since
Record
January 1939
1-Month
21.8°F
(-5.7°C)
21.1°F
(-6.1°C)
0.7°F
(0.4°C)
68th Coolest
Coolest since:
1937
62nd Warmest
Warmest since:
2003
Ties: 1958
Dec 1938–Jan 1939
2-Month
23.3°F
(-4.8°C)
22.1°F
(-5.5°C)
1.2°F
(0.7°C)
79th Coolest
Coolest since:
1979
50th Warmest
Warmest since:
1981
Ties: 1969
Nov 1938–Jan 1939
3-Month
24.1°F
(-4.4°C)
25.4°F
(-3.7°C)
-1.3°F
(-0.7°C)
34th Coolest
Coolest since:
1932
95th Warmest
Warmest since:
2018
Ties: 1897
Oct 1938–Jan 1939
4-Month
29.7°F
(-1.3°C)
30.4°F
(-0.9°C)
-0.7°F
(-0.4°C)
38th Coolest
Coolest since:
1917
91st Warmest
Warmest since:
2018
Ties: 1921, 1926
Sep 1938–Jan 1939
5-Month
35.4°F
(1.9°C)
35.6°F
(2.0°C)
-0.2°F
(-0.1°C)
46th Coolest
Coolest since:
1913
83rd Warmest
Warmest since:
2018
Ties: 1900, 1969, 1987
Aug 1938–Jan 1939
6-Month
40.4°F
(4.7°C)
40.5°F
(4.7°C)
-0.1°F
(0.0°C)
51st Coolest
Coolest since:
1913
78th Warmest
Warmest since:
2018
Ties: 1977, 1988
Jul 1938–Jan 1939
7-Month
44.0°F
(6.7°C)
44.2°F
(6.8°C)
-0.2°F
(-0.1°C)
49th Coolest
Coolest since:
1913
80th Warmest
Warmest since:
2018
Ties: 1905, 1987, 1988
Jun 1938–Jan 1939
8-Month
46.2°F
(7.9°C)
46.3°F
(7.9°C)
-0.1°F
(0.0°C)
53rd Coolest
Coolest since:
1913
76th Warmest
Warmest since:
2022
Ties: 1971, 2010
May 1938–Jan 1939
9-Month
46.6°F
(8.1°C)
46.8°F
(8.2°C)
-0.2°F
(-0.1°C)
49th Coolest
Coolest since:
1913
80th Warmest
Warmest since:
2022
Ties: 1937
Apr 1938–Jan 1939
10-Month
46.2°F
(7.9°C)
46.3°F
(7.9°C)
-0.1°F
(0.0°C)
51st Coolest
Coolest since:
1913
78th Warmest
Warmest since:
2022
Ties: 1926, 1948
Mar 1938–Jan 1939
11-Month
44.9°F
(7.2°C)
45.0°F
(7.2°C)
-0.1°F
(0.0°C)
49th Coolest
Coolest since:
1913
80th Warmest
Warmest since:
2018
Ties: 1936, 1945, 1977, 1983, 1994
Feb 1938–Jan 1939
12-Month
43.5°F
(6.4°C)
43.4°F
(6.3°C)
0.1°F
(0.1°C)
58th Coolest
Coolest since:
1913
71st Warmest
Warmest since:
2018
Ties: 1908, 1936, 1937, 1970, 1975
Aug 1937–Jan 1939
18-Month
43.3°F
(6.3°C)
42.4°F
(5.8°C)
0.9°F
(0.5°C)
86th Coolest
Coolest since:
1913
42nd Warmest
Warmest since:
2018
Ties: 1998, 2020
Feb 1937–Jan 1939
24-Month
43.8°F
(6.6°C)
43.4°F
(6.3°C)
0.4°F
(0.3°C)
72nd Coolest
Coolest since:
1913, 1914
56th Warmest
Warmest since:
2018, 2019
Ties: 1912, 1928, 1938, 1940, 1944, 1965
Feb 1936–Jan 1939
36-Month
43.7°F
(6.5°C)
43.4°F
(6.3°C)
0.3°F
(0.2°C)
70th Coolest
Coolest since:
1914
57th Warmest
Warmest since:
2018
Ties: 1928, 1938, 1957, 1978, 1987
Feb 1935–Jan 1939
48-Month
43.6°F
(6.4°C)
43.4°F
(6.3°C)
0.2°F
(0.1°C)
67th Coolest
Coolest since:
1899
59th Warmest
Warmest since:
2018
Ties: 1947, 1958, 1959, 1963, 1965, 1985
Feb 1934–Jan 1939
60-Month
44.3°F
(6.8°C)
43.4°F
(6.3°C)
0.9°F
(0.5°C)
89th Coolest
Coolest since:
1900, 1917
36th Warmest
Warmest since:
2019
Ties: 1994

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