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 1981

View Period (Months):
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  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
April 1981
1-Month
46.6°F
(8.1°C)
41.7°F
(5.4°C)
4.9°F
(2.7°C)
121st Coolest
Coolest since:
1920
8th Warmest
Warmest since:
1992
Ties: 1934
Mar–Apr 1981
2-Month
40.9°F
(4.9°C)
37.2°F
(2.9°C)
3.7°F
(2.0°C)
114th Coolest
Coolest since:
1917
15th Warmest
Warmest since:
1934, 1992
Ties: 1994
Feb–Apr 1981
3-Month
37.3°F
(2.9°C)
33.4°F
(0.8°C)
3.9°F
(2.1°C)
119th Coolest
Coolest since:
1903
10th Warmest
Warmest since:
1934
Jan–Apr 1981
4-Month
35.5°F
(1.9°C)
30.3°F
(-0.9°C)
5.2°F
(2.8°C)
126th Coolest
Coolest since:
1917
3rd Warmest
Warmest since:
1934
Dec 1980–Apr 1981
5-Month
35.0°F
(1.7°C)
28.9°F
(-1.7°C)
6.1°F
(3.4°C)
126th Coolest
Coolest since:
1917
2nd Warmest
Warmest since:
1934
Nov 1980–Apr 1981
6-Month
34.8°F
(1.6°C)
29.4°F
(-1.4°C)
5.4°F
(3.0°C)
126th Coolest
Coolest since:
1917
2nd Warmest
Warmest since:
1934
Oct 1980–Apr 1981
7-Month
36.2°F
(2.3°C)
31.6°F
(-0.2°C)
4.6°F
(2.5°C)
124th Coolest
Coolest since:
1917
4th Warmest
Warmest since:
1934
Sep 1980–Apr 1981
8-Month
38.9°F
(3.8°C)
34.8°F
(1.6°C)
4.1°F
(2.2°C)
125th Coolest
Coolest since:
1917
3rd Warmest
Warmest since:
1934
Ties: 2018
Aug 1980–Apr 1981
9-Month
41.7°F
(5.4°C)
38.1°F
(3.4°C)
3.6°F
(2.0°C)
124th Coolest
Coolest since:
1917
4th Warmest
Warmest since:
1934
Jul 1980–Apr 1981
10-Month
44.4°F
(6.9°C)
41.0°F
(5.0°C)
3.4°F
(1.9°C)
124th Coolest
Coolest since:
1917
4th Warmest
Warmest since:
1934
Jun 1980–Apr 1981
11-Month
45.9°F
(7.7°C)
42.7°F
(5.9°C)
3.2°F
(1.8°C)
122nd Coolest
Coolest since:
1917
6th Warmest
Warmest since:
1934
May 1980–Apr 1981
12-Month
46.2°F
(7.9°C)
43.4°F
(6.3°C)
2.8°F
(1.6°C)
122nd Coolest
Coolest since:
1917
6th Warmest
Warmest since:
1934, 2015, 2018
Nov 1979–Apr 1981
18-Month
40.5°F
(4.7°C)
38.7°F
(3.7°C)
1.8°F
(1.0°C)
105th Coolest
Coolest since:
1913
22nd Warmest
Warmest since:
2018
Ties: 1941
May 1979–Apr 1981
24-Month
45.0°F
(7.2°C)
43.4°F
(6.3°C)
1.6°F
(0.9°C)
105th Coolest
Coolest since:
1913
22nd Warmest
Warmest since:
2018
Ties: 1999
May 1978–Apr 1981
36-Month
43.9°F
(6.6°C)
43.4°F
(6.3°C)
0.5°F
(0.3°C)
77th Coolest
Coolest since:
1914
49th Warmest
Warmest since:
2017, 2018, 2019
Ties: 1943, 1960
May 1977–Apr 1981
48-Month
44.4°F
(6.9°C)
43.4°F
(6.3°C)
1.0°F
(0.6°C)
90th Coolest
Coolest since:
1899, 1915
35th Warmest
Warmest since:
2018
Ties: 1941, 1993
May 1976–Apr 1981
60-Month
44.3°F
(6.8°C)
43.4°F
(6.3°C)
0.9°F
(0.5°C)
89th Coolest
Coolest since:
1917
35th Warmest
Warmest since:
2018, 2019
Ties: 1994

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