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 2019

View Period (Months):
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  • Record Coolest
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  • Top 1/10
  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
April 2019
1-Month
45.2°F
(7.3°C)
41.7°F
(5.4°C)
3.5°F
(1.9°C)
112th Coolest
Coolest since:
1920
17th Warmest
Warmest since:
1992
Ties: 1910
Mar–Apr 2019
2-Month
39.2°F
(4.0°C)
37.2°F
(2.9°C)
2.0°F
(1.1°C)
99th Coolest
Coolest since:
1917
30th Warmest
Warmest since:
1934, 1992
Ties: 1915, 2021
Feb–Apr 2019
3-Month
33.8°F
(1.0°C)
33.4°F
(0.8°C)
0.4°F
(0.2°C)
71st Coolest
Coolest since:
1903
58th Warmest
Warmest since:
1934
Ties: 1959
Jan–Apr 2019
4-Month
31.0°F
(-0.6°C)
30.3°F
(-0.9°C)
0.7°F
(0.3°C)
74th Coolest
Coolest since:
1917
55th Warmest
Warmest since:
1934
Ties: 1947, 1956, 1971, 1993
Dec 2018–Apr 2019
5-Month
29.5°F
(-1.4°C)
28.9°F
(-1.7°C)
0.6°F
(0.3°C)
69th Coolest
Coolest since:
1917
59th Warmest
Warmest since:
1934
Ties: 1936, 1941, 1945, 1958
Nov 2018–Apr 2019
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, 1946
Oct 2018–Apr 2019
7-Month
31.8°F
(-0.1°C)
31.6°F
(-0.2°C)
0.2°F
(0.1°C)
56th Coolest
Coolest since:
1917
72nd Warmest
Warmest since:
1934
Ties: 1901, 1908, 1916, 1936
Sep 2018–Apr 2019
8-Month
35.6°F
(2.0°C)
34.8°F
(1.6°C)
0.8°F
(0.4°C)
80th Coolest
Coolest since:
1917
48th Warmest
Warmest since:
1934
Ties: 1994
Aug 2018–Apr 2019
9-Month
39.1°F
(3.9°C)
38.1°F
(3.4°C)
1.0°F
(0.5°C)
87th Coolest
Coolest since:
1917
41st Warmest
Warmest since:
1934
Ties: 1956, 1961, 1967, 1982
Jul 2018–Apr 2019
10-Month
42.4°F
(5.8°C)
41.0°F
(5.0°C)
1.4°F
(0.8°C)
92nd Coolest
Coolest since:
1917
36th Warmest
Warmest since:
1934
Ties: 1989, 2013
Jun 2018–Apr 2019
11-Month
44.5°F
(6.9°C)
42.8°F
(6.0°C)
1.7°F
(0.9°C)
105th Coolest
Coolest since:
1917
23rd Warmest
Warmest since:
1934
Ties: 1940, 1959, 1986, 1989, 2005, 2007
May 2018–Apr 2019
12-Month
45.4°F
(7.4°C)
43.4°F
(6.3°C)
2.0°F
(1.1°C)
111th Coolest
Coolest since:
1917
17th Warmest
Warmest since:
1934, 2015, 2018
Ties: 2007, 2013, 2014
Nov 2017–Apr 2019
18-Month
41.8°F
(5.4°C)
38.7°F
(3.7°C)
3.1°F
(1.7°C)
123rd Coolest
Coolest since:
1913
4th Warmest
Warmest since:
2018
Ties: 2015
May 2017–Apr 2019
24-Month
46.2°F
(7.9°C)
43.4°F
(6.3°C)
2.8°F
(1.6°C)
123rd Coolest
Coolest since:
1913
4th Warmest
Warmest since:
2018
Ties: 2015
May 2016–Apr 2019
36-Month
46.4°F
(8.0°C)
43.4°F
(6.3°C)
3.0°F
(1.7°C)
125th Coolest
Coolest since:
1914
1st Warmest
Warmest since:
2017, 2018, 2019
Ties: 2017, 2018
May 2015–Apr 2019
48-Month
46.2°F
(7.9°C)
43.4°F
(6.3°C)
2.8°F
(1.6°C)
123rd Coolest
Coolest since:
1899, 1915
2nd Warmest
Warmest since:
2018
Ties: 2017
May 2014–Apr 2019
60-Month
46.3°F
(7.9°C)
43.3°F
(6.3°C)
3.0°F
(1.6°C)
123rd Coolest
Coolest since:
1917
1st Warmest
Warmest since:
2018, 2019
Ties: 2018

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