Regional Rankings

Regional Data Info
Please note, Palmer Indices are not available for NWS Regions. 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 1983

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  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
April 1983
1-Month
36.8°F
(2.7°C)
41.7°F
(5.4°C)
-4.9°F
(-2.7°C)
4th Coolest
Coolest since:
1920
125th Warmest
Warmest since:
1992
Mar–Apr 1983
2-Month
35.7°F
(2.1°C)
37.2°F
(2.9°C)
-1.5°F
(-0.8°C)
28th Coolest
Coolest since:
1917
101st Warmest
Warmest since:
1934, 1992
Feb–Apr 1983
3-Month
33.4°F
(0.8°C)
33.4°F
(0.8°C)
0.0°F
(0.0°C)
55th Coolest
Coolest since:
1903
74th Warmest
Warmest since:
1934
Ties: 1902, 1905, 1980, 2013
Jan–Apr 1983
4-Month
31.6°F
(-0.2°C)
30.3°F
(-0.9°C)
1.3°F
(0.7°C)
88th Coolest
Coolest since:
1917
41st Warmest
Warmest since:
1934
Ties: 1926, 1961, 1967, 1989
Dec 1982–Apr 1983
5-Month
30.0°F
(-1.1°C)
28.8°F
(-1.8°C)
1.2°F
(0.7°C)
84th Coolest
Coolest since:
1917
44th Warmest
Warmest since:
1934
Ties: 1918
Nov 1982–Apr 1983
6-Month
30.0°F
(-1.1°C)
29.4°F
(-1.4°C)
0.6°F
(0.3°C)
70th Coolest
Coolest since:
1917
58th Warmest
Warmest since:
1934
Ties: 1904, 1905, 1928, 1945, 1970, 2013
Oct 1982–Apr 1983
7-Month
31.7°F
(-0.2°C)
31.6°F
(-0.2°C)
0.1°F
(0.0°C)
52nd Coolest
Coolest since:
1917
76th Warmest
Warmest since:
1934
Ties: 1921, 1971, 1976
Sep 1982–Apr 1983
8-Month
34.8°F
(1.6°C)
34.7°F
(1.5°C)
0.1°F
(0.1°C)
56th Coolest
Coolest since:
1917
72nd Warmest
Warmest since:
1934
Ties: 1904, 1970, 1972, 1993, 2010
Aug 1982–Apr 1983
9-Month
38.4°F
(3.6°C)
38.1°F
(3.4°C)
0.3°F
(0.2°C)
66th Coolest
Coolest since:
1917
62nd Warmest
Warmest since:
1934
Ties: 1970, 1972
Jul 1982–Apr 1983
10-Month
41.2°F
(5.1°C)
41.0°F
(5.0°C)
0.2°F
(0.1°C)
64th Coolest
Coolest since:
1917
64th Warmest
Warmest since:
1934
Ties: 1927, 1950, 1994, 2010
Jun 1982–Apr 1983
11-Month
42.8°F
(6.0°C)
42.7°F
(5.9°C)
0.1°F
(0.1°C)
61st Coolest
Coolest since:
1917
67th Warmest
Warmest since:
1934
Ties: 1950, 1970, 1994
May 1982–Apr 1983
12-Month
43.4°F
(6.3°C)
43.4°F
(6.3°C)
0.0°F
(0.0°C)
53rd Coolest
Coolest since:
1917
75th Warmest
Warmest since:
1934, 2015, 2018
Ties: 1901, 1918, 1971
Nov 1981–Apr 1983
18-Month
39.1°F
(3.9°C)
38.7°F
(3.7°C)
0.4°F
(0.2°C)
63rd Coolest
Coolest since:
1913
64th Warmest
Warmest since:
2018
Ties: 1907
May 1981–Apr 1983
24-Month
44.0°F
(6.7°C)
43.5°F
(6.4°C)
0.5°F
(0.3°C)
83rd Coolest
Coolest since:
1913
44th Warmest
Warmest since:
2018
Ties: 1934, 1940, 1955, 1961, 2011
May 1980–Apr 1983
36-Month
44.7°F
(7.1°C)
43.4°F
(6.3°C)
1.3°F
(0.8°C)
100th Coolest
Coolest since:
1914
26th Warmest
Warmest since:
2017, 2018, 2019
Ties: 1990, 1991, 1992
May 1979–Apr 1983
48-Month
44.5°F
(6.9°C)
43.4°F
(6.3°C)
1.1°F
(0.6°C)
97th Coolest
Coolest since:
1899, 1915
28th Warmest
Warmest since:
2018
Ties: 1989, 1990, 1991, 1995, 1996, 2011
May 1978–Apr 1983
60-Month
43.9°F
(6.6°C)
43.3°F
(6.3°C)
0.6°F
(0.3°C)
80th Coolest
Coolest since:
1917
44th Warmest
Warmest since:
2018, 2019
Ties: 1937, 1943, 1957, 1960, 1985

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