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 1930

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 1930
1-Month
1.20"
(30.48mm)
1.84"
(46.74mm)
-0.64"
(-16.26mm)
31st Driest
Driest since:
2002
98th Wettest
Wettest since:
1900
Mar–Apr 1930
2-Month
2.14"
(54.36mm)
3.35"
(85.09mm)
-1.21"
(-30.73mm)
17th Driest
Driest since:
2002
112th Wettest
Wettest since:
1906
Feb–Apr 1930
3-Month
2.83"
(71.88mm)
4.44"
(112.78mm)
-1.61"
(-40.90mm)
8th Driest
Driest since:
2002
121st Wettest
Wettest since:
1905
Jan–Apr 1930
4-Month
4.43"
(112.52mm)
5.51"
(139.95mm)
-1.08"
(-27.43mm)
24th Driest
Driest since:
2002
105th Wettest
Wettest since:
1905
Dec 1929–Apr 1930
5-Month
4.72"
(119.89mm)
6.58"
(167.13mm)
-1.86"
(-47.24mm)
11th Driest
Driest since:
2002
117th Wettest
Wettest since:
1905
Nov 1929–Apr 1930
6-Month
5.64"
(143.26mm)
7.65"
(194.31mm)
-2.01"
(-51.05mm)
12th Driest
Driest since:
1904
116th Wettest
Wettest since:
1984
Oct 1929–Apr 1930
7-Month
6.92"
(175.77mm)
8.98"
(228.09mm)
-2.06"
(-52.32mm)
15th Driest
Driest since:
2002
113th Wettest
Wettest since:
1942
Sep 1929–Apr 1930
8-Month
9.58"
(243.33mm)
10.41"
(264.41mm)
-0.83"
(-21.08mm)
50th Driest
Driest since:
1902, 2002
78th Wettest
Wettest since:
1942
Aug 1929–Apr 1930
9-Month
12.48"
(316.99mm)
12.42"
(315.47mm)
0.06"
(1.52mm)
67th Driest
Driest since:
2002
61st Wettest
Wettest since:
1942
Jul 1929–Apr 1930
10-Month
15.34"
(389.64mm)
14.52"
(368.81mm)
0.82"
(20.83mm)
82nd Driest
Driest since:
1902
46th Wettest
Wettest since:
1942
Jun 1929–Apr 1930
11-Month
15.97"
(405.64mm)
16.07"
(408.18mm)
-0.10"
(-2.54mm)
65th Driest
Driest since:
1981
63rd Wettest
Wettest since:
1942
Ties: 2009
May 1929–Apr 1930
12-Month
17.72"
(450.09mm)
18.08"
(459.23mm)
-0.36"
(-9.14mm)
56th Driest
Driest since:
2013
72nd Wettest
Wettest since:
1942
Nov 1928–Apr 1930
18-Month
25.51"
(647.95mm)
25.76"
(654.30mm)
-0.25"
(-6.35mm)
61st Driest
Driest since:
2013
66th Wettest
Wettest since:
1942
Ties: 1992
May 1928–Apr 1930
24-Month
37.47"
(951.74mm)
36.16"
(918.46mm)
1.31"
(33.28mm)
86th Driest
Driest since:
1902
41st Wettest
Wettest since:
1942
May 1927–Apr 1930
36-Month
56.19"
(1,427.23mm)
54.22"
(1,377.19mm)
1.97"
(50.04mm)
86th Driest
Driest since:
1955
40th Wettest
Wettest since:
1985
May 1926–Apr 1930
48-Month
74.34"
(1,888.24mm)
72.24"
(1,834.90mm)
2.10"
(53.34mm)
79th Driest
Driest since:
1904
46th Wettest
Wettest since:
1986
Ties: 1920
May 1925–Apr 1930
60-Month
94.39"
(2,397.51mm)
90.24"
(2,292.10mm)
4.15"
(105.41mm)
94th Driest
Driest since:
1957
30th Wettest
Wettest since:
1987

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