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, April 1946

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Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
April 1946
1-Month
47.1°F
(8.4°C)
41.7°F
(5.4°C)
5.4°F
(3.0°C)
125th Coolest
Coolest since:
1920
4th Warmest
Warmest since:
1992
Ties: 2000
Mar–Apr 1946
2-Month
41.4°F
(5.2°C)
37.3°F
(2.9°C)
4.1°F
(2.3°C)
117th Coolest
Coolest since:
1917
12th Warmest
Warmest since:
1934, 1992
Feb–Apr 1946
3-Month
36.1°F
(2.3°C)
33.4°F
(0.8°C)
2.7°F
(1.5°C)
108th Coolest
Coolest since:
1903
21st Warmest
Warmest since:
1934
Jan–Apr 1946
4-Month
32.1°F
(0.1°C)
30.3°F
(-0.9°C)
1.8°F
(1.0°C)
95th Coolest
Coolest since:
1917
34th Warmest
Warmest since:
1934
Dec 1945–Apr 1946
5-Month
29.7°F
(-1.3°C)
28.8°F
(-1.8°C)
0.9°F
(0.5°C)
77th Coolest
Coolest since:
1917
51st Warmest
Warmest since:
1934
Ties: 1970
Nov 1945–Apr 1946
6-Month
29.8°F
(-1.2°C)
29.4°F
(-1.4°C)
0.4°F
(0.2°C)
61st Coolest
Coolest since:
1917
67th Warmest
Warmest since:
1934
Ties: 1921, 2019
Oct 1945–Apr 1946
7-Month
32.3°F
(0.2°C)
31.7°F
(-0.2°C)
0.6°F
(0.4°C)
75th Coolest
Coolest since:
1917
53rd Warmest
Warmest since:
1934
Ties: 1966, 1972, 1997
Sep 1945–Apr 1946
8-Month
35.2°F
(1.8°C)
34.8°F
(1.6°C)
0.4°F
(0.2°C)
72nd Coolest
Coolest since:
1917
56th Warmest
Warmest since:
1934
Ties: 1927, 1941, 1950, 1997
Aug 1945–Apr 1946
9-Month
38.6°F
(3.7°C)
38.1°F
(3.4°C)
0.5°F
(0.3°C)
74th Coolest
Coolest since:
1917
54th Warmest
Warmest since:
1934
Ties: 1941, 1947, 1977, 1980
Jul 1945–Apr 1946
10-Month
41.4°F
(5.2°C)
41.0°F
(5.0°C)
0.4°F
(0.2°C)
69th Coolest
Coolest since:
1917
59th Warmest
Warmest since:
1934
Jun 1945–Apr 1946
11-Month
42.7°F
(5.9°C)
42.7°F
(5.9°C)
0.0°F
(0.0°C)
56th Coolest
Coolest since:
1917
72nd Warmest
Warmest since:
1934
Ties: 1926, 1957, 1971, 2010
May 1945–Apr 1946
12-Month
43.5°F
(6.4°C)
43.4°F
(6.3°C)
0.1°F
(0.1°C)
56th Coolest
Coolest since:
1917
72nd Warmest
Warmest since:
1934, 2015, 2018
Ties: 1960, 1971
Nov 1944–Apr 1946
18-Month
39.0°F
(3.9°C)
38.7°F
(3.7°C)
0.3°F
(0.2°C)
60th Coolest
Coolest since:
1913
67th Warmest
Warmest since:
2018
Ties: 1901, 1971
May 1944–Apr 1946
24-Month
43.6°F
(6.4°C)
43.4°F
(6.3°C)
0.2°F
(0.1°C)
59th Coolest
Coolest since:
1913
68th Warmest
Warmest since:
2018
Ties: 1943, 1962, 1967, 1971
May 1943–Apr 1946
36-Month
43.4°F
(6.3°C)
43.4°F
(6.3°C)
0.0°F
(0.0°C)
51st Coolest
Coolest since:
1914
75th Warmest
Warmest since:
2017, 2018, 2019
Ties: 1927, 1939, 1948, 1967, 1984
May 1942–Apr 1946
48-Month
43.7°F
(6.5°C)
43.4°F
(6.3°C)
0.3°F
(0.2°C)
70th Coolest
Coolest since:
1899, 1915
55th Warmest
Warmest since:
2018
Ties: 1942, 1963, 1964
May 1941–Apr 1946
60-Month
43.4°F
(6.3°C)
43.4°F
(6.3°C)
0.0°F
(0.0°C)
51st Coolest
Coolest since:
1917
73rd Warmest
Warmest since:
2018, 2019
Ties: 1948, 1971

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