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 1898

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  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
April 1898
1-Month
44.3°F
(6.8°C)
41.7°F
(5.4°C)
2.6°F
(1.4°C)
101st Coolest
Coolest since:
1920
28th Warmest
Warmest to Date
1992
Mar–Apr 1898
2-Month
36.6°F
(2.6°C)
37.2°F
(2.9°C)
-0.6°F
(-0.3°C)
45th Coolest
Coolest since:
1917
84th Warmest
Warmest to Date
1934, 1992
Ties: 1941, 1971
Feb–Apr 1898
3-Month
32.4°F
(0.2°C)
33.4°F
(0.8°C)
-1.0°F
(-0.6°C)
35th Coolest
Coolest since:
1903
94th Warmest
Warmest to Date
1934
Ties: 1924, 1960
Jan–Apr 1898
4-Month
27.4°F
(-2.6°C)
30.2°F
(-1.0°C)
-2.8°F
(-1.6°C)
16th Coolest
Coolest since:
1917
113th Warmest
Warmest since:
1934
Ties: 1897
Dec 1897–Apr 1898
5-Month
25.2°F
(-3.8°C)
28.8°F
(-1.8°C)
-3.6°F
(-2.0°C)
9th Coolest
Coolest since:
1917
119th Warmest
Warmest since:
1934
Nov 1897–Apr 1898
6-Month
26.7°F
(-2.9°C)
29.4°F
(-1.4°C)
-2.7°F
(-1.5°C)
13th Coolest
Coolest since:
1917
115th Warmest
Warmest since:
1934
Ties: 1896, 1920, 1955
Oct 1897–Apr 1898
7-Month
29.2°F
(-1.6°C)
31.7°F
(-0.2°C)
-2.5°F
(-1.4°C)
15th Coolest
Coolest since:
1917
113th Warmest
Warmest since:
1934
Ties: 1896
Sep 1897–Apr 1898
8-Month
32.8°F
(0.4°C)
34.8°F
(1.6°C)
-2.0°F
(-1.2°C)
18th Coolest
Coolest since:
1917
110th Warmest
Warmest to Date
1934
Ties: 1924, 1962
Aug 1897–Apr 1898
9-Month
36.3°F
(2.4°C)
38.1°F
(3.4°C)
-1.8°F
(-1.0°C)
18th Coolest
Coolest since:
1917
110th Warmest
Warmest to Date
1934
Ties: 1949
Jul 1897–Apr 1898
10-Month
39.1°F
(3.9°C)
41.0°F
(5.0°C)
-1.9°F
(-1.1°C)
12th Coolest
Coolest since:
1917
116th Warmest
Warmest since:
1934
Ties: 1979
Jun 1897–Apr 1898
11-Month
41.0°F
(5.0°C)
42.7°F
(5.9°C)
-1.7°F
(-0.9°C)
12th Coolest
Coolest since:
1917
116th Warmest
Warmest since:
1934
May 1897–Apr 1898
12-Month
42.2°F
(5.7°C)
43.5°F
(6.4°C)
-1.3°F
(-0.7°C)
17th Coolest
Coolest since:
1917
111th Warmest
Warmest to Date
1934, 2015, 2018
Ties: 1920, 1984
Nov 1896–Apr 1898
18-Month
37.1°F
(2.8°C)
38.7°F
(3.7°C)
-1.6°F
(-0.9°C)
9th Coolest
Coolest since:
1913
118th Warmest
Warmest to Date
2018
Ties: 1904
May 1896–Apr 1898
24-Month
42.1°F
(5.6°C)
43.4°F
(6.3°C)
-1.3°F
(-0.7°C)
12th Coolest
Coolest since:
1913
115th Warmest
Warmest to Date
2018
May 1895–Apr 1898
36-Month
41.9°F
(5.5°C)
43.4°F
(6.3°C)
-1.5°F
(-0.8°C)
5th Coolest
Coolest since:
1914
121st Warmest
Warmest to Date
2017, 2018, 2019
Ties: 1933

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