Statewide Rankings

Statewide Data Info
Please note, Degree Days and Palmer Indices are not available for Alaska. Palmer Drought Severity Index (PDSI), Palmer Hydrological Drought Index (PHDI), and Palmer Modified Drought Index (PMDI) are not offered for multiple-month time scales.

Colorado

Precipitation Rankings, April 1939

View Period (Months):
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  • Record Driest
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Wettest/Driest
Since
Record
April 1939
1-Month
0.98"
(24.89mm)
1.84"
(46.74mm)
-0.86"
(-21.85mm)
18th Driest
Driest since:
2002
111th Wettest
Wettest since:
1900
Mar–Apr 1939
2-Month
2.39"
(60.71mm)
3.35"
(85.09mm)
-0.96"
(-24.38mm)
28th Driest
Driest since:
2002
101st Wettest
Wettest since:
1906
Feb–Apr 1939
3-Month
3.73"
(94.74mm)
4.44"
(112.78mm)
-0.71"
(-18.04mm)
38th Driest
Driest since:
2002
91st Wettest
Wettest since:
1905
Ties: 1996
Jan–Apr 1939
4-Month
5.39"
(136.91mm)
5.51"
(139.95mm)
-0.12"
(-3.04mm)
70th Driest
Driest since:
2002
59th Wettest
Wettest since:
1905
Ties: 1965
Dec 1938–Apr 1939
5-Month
6.58"
(167.13mm)
6.58"
(167.13mm)
0.00"
(0.00mm)
69th Driest
Driest since:
2002
59th Wettest
Wettest since:
1905
Nov 1938–Apr 1939
6-Month
7.60"
(193.04mm)
7.65"
(194.31mm)
-0.05"
(-1.27mm)
69th Driest
Driest since:
1904
59th Wettest
Wettest since:
1984
Ties: 1992
Oct 1938–Apr 1939
7-Month
8.73"
(221.74mm)
8.98"
(228.09mm)
-0.25"
(-6.35mm)
62nd Driest
Driest since:
2002
66th Wettest
Wettest since:
1942
Sep 1938–Apr 1939
8-Month
11.72"
(297.69mm)
10.41"
(264.41mm)
1.31"
(33.28mm)
93rd Driest
Driest since:
1902, 2002
35th Wettest
Wettest since:
1942
Aug 1938–Apr 1939
9-Month
13.33"
(338.58mm)
12.42"
(315.47mm)
0.91"
(23.11mm)
83rd Driest
Driest since:
2002
45th Wettest
Wettest since:
1942
Jul 1938–Apr 1939
10-Month
15.02"
(381.51mm)
14.52"
(368.81mm)
0.50"
(12.70mm)
75th Driest
Driest since:
1902
53rd Wettest
Wettest since:
1942
Jun 1938–Apr 1939
11-Month
16.77"
(425.96mm)
16.07"
(408.18mm)
0.70"
(17.78mm)
78th Driest
Driest since:
1981
50th Wettest
Wettest since:
1942
May 1938–Apr 1939
12-Month
19.32"
(490.73mm)
18.08"
(459.23mm)
1.24"
(31.50mm)
90th Driest
Driest since:
2013
38th Wettest
Wettest since:
1942
Nov 1937–Apr 1939
18-Month
28.86"
(733.04mm)
25.76"
(654.30mm)
3.10"
(78.74mm)
112th Driest
Driest since:
2013
15th Wettest
Wettest since:
1942
May 1937–Apr 1939
24-Month
37.66"
(956.56mm)
36.16"
(918.46mm)
1.50"
(38.10mm)
89th Driest
Driest since:
1902
38th Wettest
Wettest since:
1942
May 1936–Apr 1939
36-Month
55.28"
(1,404.11mm)
54.22"
(1,377.19mm)
1.06"
(26.92mm)
72nd Driest
Driest since:
1955
54th Wettest
Wettest since:
1985
Ties: 1914
May 1935–Apr 1939
48-Month
71.94"
(1,827.28mm)
72.24"
(1,834.90mm)
-0.30"
(-7.62mm)
59th Driest
Driest since:
1904
66th Wettest
Wettest since:
1986
May 1934–Apr 1939
60-Month
86.02"
(2,184.91mm)
90.24"
(2,292.10mm)
-4.22"
(-107.19mm)
36th Driest
Driest since:
1957
88th Wettest
Wettest since:
1987

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