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 2007

View Period (Months):
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  • Record Coolest
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  • Top 1/3
  • Top 1/10
  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
April 2007
1-Month
44.7°F
(7.1°C)
41.7°F
(5.4°C)
3.0°F
(1.7°C)
105th Coolest
Coolest since:
1920
24th Warmest
Warmest since:
1992
Mar–Apr 2007
2-Month
41.9°F
(5.5°C)
37.2°F
(2.9°C)
4.7°F
(2.6°C)
120th Coolest
Coolest since:
1917
9th Warmest
Warmest since:
1934, 1992
Feb–Apr 2007
3-Month
37.8°F
(3.2°C)
33.3°F
(0.7°C)
4.5°F
(2.5°C)
121st Coolest
Coolest since:
1903
8th Warmest
Warmest since:
1934
Ties: 2012
Jan–Apr 2007
4-Month
33.2°F
(0.7°C)
30.2°F
(-1.0°C)
3.0°F
(1.7°C)
108th Coolest
Coolest since:
1917
21st Warmest
Warmest since:
1934
Ties: 1994, 2009
Dec 2006–Apr 2007
5-Month
31.6°F
(-0.2°C)
28.9°F
(-1.7°C)
2.7°F
(1.5°C)
108th Coolest
Coolest since:
1917
20th Warmest
Warmest since:
1934
Nov 2006–Apr 2007
6-Month
32.0°F
(0.0°C)
29.3°F
(-1.5°C)
2.7°F
(1.5°C)
107th Coolest
Coolest since:
1917
21st Warmest
Warmest since:
1934
Oct 2006–Apr 2007
7-Month
33.7°F
(0.9°C)
31.7°F
(-0.2°C)
2.0°F
(1.1°C)
104th Coolest
Coolest since:
1917
24th Warmest
Warmest since:
1934
Ties: 1911, 1951, 2003, 2021
Sep 2006–Apr 2007
8-Month
36.2°F
(2.3°C)
34.8°F
(1.6°C)
1.4°F
(0.7°C)
95th Coolest
Coolest since:
1917
33rd Warmest
Warmest since:
1934
Aug 2006–Apr 2007
9-Month
39.4°F
(4.1°C)
38.1°F
(3.4°C)
1.3°F
(0.7°C)
94th Coolest
Coolest since:
1917
34th Warmest
Warmest since:
1934
Ties: 1989, 2001, 2013
Jul 2006–Apr 2007
10-Month
42.5°F
(5.8°C)
41.0°F
(5.0°C)
1.5°F
(0.8°C)
96th Coolest
Coolest since:
1917
32nd Warmest
Warmest since:
1934
Ties: 1907, 1935, 2001
Jun 2006–Apr 2007
11-Month
44.5°F
(6.9°C)
42.7°F
(5.9°C)
1.8°F
(1.0°C)
105th Coolest
Coolest since:
1917
23rd Warmest
Warmest since:
1934
Ties: 1940, 1959, 1986, 1989, 2005, 2019
May 2006–Apr 2007
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: 2013, 2014, 2019
Nov 2005–Apr 2007
18-Month
40.8°F
(4.9°C)
38.7°F
(3.7°C)
2.1°F
(1.2°C)
111th Coolest
Coolest since:
1913
16th Warmest
Warmest since:
2018
May 2005–Apr 2007
24-Month
45.3°F
(7.4°C)
43.4°F
(6.3°C)
1.9°F
(1.1°C)
110th Coolest
Coolest since:
1913
17th Warmest
Warmest since:
2018
Ties: 1982
May 2004–Apr 2007
36-Month
45.3°F
(7.4°C)
43.4°F
(6.3°C)
1.9°F
(1.1°C)
111th Coolest
Coolest since:
1914
15th Warmest
Warmest since:
2017, 2018, 2019
Ties: 1936, 2000, 2021
May 2003–Apr 2007
48-Month
45.5°F
(7.5°C)
43.4°F
(6.3°C)
2.1°F
(1.2°C)
111th Coolest
Coolest since:
1899, 1915
14th Warmest
Warmest since:
2018
May 2002–Apr 2007
60-Month
45.5°F
(7.5°C)
43.3°F
(6.3°C)
2.2°F
(1.2°C)
113th Coolest
Coolest since:
1917
11th Warmest
Warmest since:
2018, 2019
Ties: 2006, 2015

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