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 1903

View Period (Months):
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  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
April 1903
1-Month
40.2°F
(4.6°C)
41.7°F
(5.4°C)
-1.5°F
(-0.8°C)
32nd Coolest
Coolest since:
1920
97th Warmest
Warmest since:
1992
Ties: 1937, 1974
Mar–Apr 1903
2-Month
35.0°F
(1.7°C)
37.2°F
(2.9°C)
-2.2°F
(-1.2°C)
22nd Coolest
Coolest since:
1917
107th Warmest
Warmest since:
1934, 1992
Feb–Apr 1903
3-Month
27.3°F
(-2.6°C)
33.4°F
(0.8°C)
-6.1°F
(-3.4°C)
1st Coolest
Coolest since:
1903
128th Warmest
Warmest since:
1934
Jan–Apr 1903
4-Month
25.4°F
(-3.7°C)
30.3°F
(-0.9°C)
-4.9°F
(-2.8°C)
3rd Coolest
Coolest since:
1917
126th Warmest
Warmest since:
1934
Dec 1902–Apr 1903
5-Month
24.4°F
(-4.2°C)
28.8°F
(-1.8°C)
-4.4°F
(-2.4°C)
5th Coolest
Coolest since:
1917
123rd Warmest
Warmest since:
1934
Nov 1902–Apr 1903
6-Month
25.6°F
(-3.6°C)
29.4°F
(-1.4°C)
-3.8°F
(-2.2°C)
5th Coolest
Coolest since:
1917
123rd Warmest
Warmest since:
1934
Oct 1902–Apr 1903
7-Month
28.4°F
(-2.0°C)
31.6°F
(-0.2°C)
-3.2°F
(-1.8°C)
4th Coolest
Coolest since:
1917
124th Warmest
Warmest since:
1934
Ties: 1929, 1952
Sep 1902–Apr 1903
8-Month
31.8°F
(-0.1°C)
34.8°F
(1.6°C)
-3.0°F
(-1.7°C)
5th Coolest
Coolest since:
1917
123rd Warmest
Warmest since:
1934
Aug 1902–Apr 1903
9-Month
35.3°F
(1.8°C)
38.1°F
(3.4°C)
-2.8°F
(-1.6°C)
5th Coolest
Coolest since:
1917
123rd Warmest
Warmest since:
1934
Ties: 1929
Jul 1902–Apr 1903
10-Month
38.1°F
(3.4°C)
41.0°F
(5.0°C)
-2.9°F
(-1.6°C)
3rd Coolest
Coolest since:
1917
125th Warmest
Warmest since:
1934
Jun 1902–Apr 1903
11-Month
40.3°F
(4.6°C)
42.7°F
(5.9°C)
-2.4°F
(-1.3°C)
5th Coolest
Coolest since:
1917
123rd Warmest
Warmest since:
1934
May 1902–Apr 1903
12-Month
41.2°F
(5.1°C)
43.4°F
(6.3°C)
-2.2°F
(-1.2°C)
5th Coolest
Coolest since:
1917
123rd Warmest
Warmest since:
1934, 2015, 2018
Nov 1901–Apr 1903
18-Month
37.6°F
(3.1°C)
38.8°F
(3.8°C)
-1.2°F
(-0.7°C)
19th Coolest
Coolest since:
1913
108th Warmest
Warmest since:
2018
Ties: 1910, 1932, 1985
May 1901–Apr 1903
24-Month
42.7°F
(5.9°C)
43.4°F
(6.3°C)
-0.7°F
(-0.4°C)
26th Coolest
Coolest since:
1913
101st Warmest
Warmest since:
2018
Ties: 1916, 1931, 1953, 1985
May 1900–Apr 1903
36-Month
42.9°F
(6.1°C)
43.4°F
(6.3°C)
-0.5°F
(-0.2°C)
32nd Coolest
Coolest since:
1914
94th Warmest
Warmest since:
2017, 2018, 2019
Ties: 1908, 1911, 1949, 1952, 1976, 1985
May 1899–Apr 1903
48-Month
43.0°F
(6.1°C)
43.4°F
(6.3°C)
-0.4°F
(-0.2°C)
33rd Coolest
Coolest since:
1899, 1915
92nd Warmest
Warmest since:
2018
Ties: 1908, 1927, 1929
May 1898–Apr 1903
60-Month
42.7°F
(5.9°C)
43.4°F
(6.3°C)
-0.7°F
(-0.4°C)
18th Coolest
Coolest since:
1917
106th Warmest
Warmest since:
2018, 2019
Ties: 1906, 1922, 1923, 1925, 1952, 1976

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