Regional Rankings

Regional Data Info
Please note, Palmer Indices are not available for NWS Regions. Degree Days are not available for Great Plains, Souther Plains and Gulf Coast Rockies and Westward, River Basins, or Agricultural Belts. 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 1913

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Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
April 1913
1-Month
42.4°F
(5.8°C)
41.7°F
(5.4°C)
0.7°F
(0.4°C)
70th Coolest
Coolest since:
1920
59th Warmest
Warmest since:
1992
Ties: 1899, 1902, 1916, 1938, 1948, 2014
Mar–Apr 1913
2-Month
35.8°F
(2.1°C)
37.3°F
(2.9°C)
-1.5°F
(-0.8°C)
29th Coolest
Coolest since:
1917
100th Warmest
Warmest since:
1934, 1992
Ties: 1902, 1932, 1980
Feb–Apr 1913
3-Month
31.1°F
(-0.5°C)
33.4°F
(0.8°C)
-2.3°F
(-1.3°C)
23rd Coolest
Coolest since:
1903
106th Warmest
Warmest since:
1934
Jan–Apr 1913
4-Month
27.3°F
(-2.6°C)
30.3°F
(-0.9°C)
-3.0°F
(-1.7°C)
14th Coolest
Coolest since:
1917
115th Warmest
Warmest since:
1934
Ties: 1944
Dec 1912–Apr 1913
5-Month
25.3°F
(-3.7°C)
28.8°F
(-1.8°C)
-3.5°F
(-1.9°C)
10th Coolest
Coolest since:
1917
118th Warmest
Warmest since:
1934
Nov 1912–Apr 1913
6-Month
26.4°F
(-3.1°C)
29.4°F
(-1.4°C)
-3.0°F
(-1.7°C)
11th Coolest
Coolest since:
1917
117th Warmest
Warmest since:
1934
Ties: 1899
Oct 1912–Apr 1913
7-Month
28.6°F
(-1.9°C)
31.7°F
(-0.2°C)
-3.1°F
(-1.7°C)
8th Coolest
Coolest since:
1917
120th Warmest
Warmest since:
1934
Ties: 1899
Sep 1912–Apr 1913
8-Month
31.2°F
(-0.4°C)
34.8°F
(1.6°C)
-3.6°F
(-2.0°C)
2nd Coolest
Coolest to Date
1917
126th Warmest
Warmest since:
1934
Aug 1912–Apr 1913
9-Month
34.7°F
(1.5°C)
38.1°F
(3.4°C)
-3.4°F
(-1.9°C)
2nd Coolest
Coolest to Date
1917
126th Warmest
Warmest since:
1934
Jul 1912–Apr 1913
10-Month
37.6°F
(3.1°C)
41.0°F
(5.0°C)
-3.4°F
(-1.9°C)
2nd Coolest
Coolest to Date
1917
126th Warmest
Warmest since:
1934
Jun 1912–Apr 1913
11-Month
39.5°F
(4.2°C)
42.7°F
(5.9°C)
-3.2°F
(-1.7°C)
2nd Coolest
Coolest to Date
1917
126th Warmest
Warmest since:
1934
May 1912–Apr 1913
12-Month
40.2°F
(4.6°C)
43.4°F
(6.3°C)
-3.2°F
(-1.7°C)
2nd Coolest
Coolest to Date
1917
126th Warmest
Warmest since:
1934, 2015, 2018
Nov 1911–Apr 1913
18-Month
35.7°F
(2.1°C)
38.7°F
(3.7°C)
-3.0°F
(-1.6°C)
1st Coolest
Coolest to Date
1913
126th Warmest
Warmest since:
2018
May 1911–Apr 1913
24-Month
40.8°F
(4.9°C)
43.4°F
(6.3°C)
-2.6°F
(-1.4°C)
1st Coolest
Coolest to Date
1913
126th Warmest
Warmest since:
2018
May 1910–Apr 1913
36-Month
42.2°F
(5.7°C)
43.4°F
(6.3°C)
-1.2°F
(-0.6°C)
10th Coolest
Coolest since:
1914
116th Warmest
Warmest since:
2017, 2018, 2019
Ties: 1931
May 1909–Apr 1913
48-Month
42.4°F
(5.8°C)
43.4°F
(6.3°C)
-1.0°F
(-0.5°C)
13th Coolest
Coolest since:
1899, 1915
112th Warmest
Warmest since:
2018
Ties: 1909
May 1908–Apr 1913
60-Month
42.1°F
(5.6°C)
43.4°F
(6.3°C)
-1.3°F
(-0.7°C)
6th Coolest
Coolest since:
1917
118th Warmest
Warmest since:
2018, 2019
Ties: 1921

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