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 1931

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  • Record Wettest
PeriodValue1901-2000
Mean
AnomalyRank
(1895-2022)
Wettest/Driest
Since
Record
April 1931
1-Month
1.55"
(39.37mm)
1.84"
(46.74mm)
-0.29"
(-7.37mm)
60th Driest
Driest since:
2002
69th Wettest
Wettest since:
1900
Mar–Apr 1931
2-Month
2.89"
(73.41mm)
3.35"
(85.09mm)
-0.46"
(-11.68mm)
49th Driest
Driest since:
2002
80th Wettest
Wettest since:
1906
Feb–Apr 1931
3-Month
4.36"
(110.74mm)
4.44"
(112.78mm)
-0.08"
(-2.04mm)
71st Driest
Driest since:
2002
58th Wettest
Wettest since:
1905
Ties: 2017
Jan–Apr 1931
4-Month
4.53"
(115.06mm)
5.51"
(139.95mm)
-0.98"
(-24.89mm)
30th Driest
Driest since:
2002
99th Wettest
Wettest since:
1905
Dec 1930–Apr 1931
5-Month
4.86"
(123.44mm)
6.58"
(167.13mm)
-1.72"
(-43.69mm)
14th Driest
Driest since:
2002
114th Wettest
Wettest since:
1905
Ties: 1928
Nov 1930–Apr 1931
6-Month
6.48"
(164.59mm)
7.65"
(194.31mm)
-1.17"
(-29.72mm)
30th Driest
Driest since:
1904
98th Wettest
Wettest since:
1984
Oct 1930–Apr 1931
7-Month
7.71"
(195.83mm)
8.98"
(228.09mm)
-1.27"
(-32.26mm)
36th Driest
Driest since:
2002
92nd Wettest
Wettest since:
1942
Sep 1930–Apr 1931
8-Month
8.85"
(224.79mm)
10.41"
(264.41mm)
-1.56"
(-39.62mm)
32nd Driest
Driest since:
1902, 2002
96th Wettest
Wettest since:
1942
Ties: 1972
Aug 1930–Apr 1931
9-Month
11.79"
(299.47mm)
12.42"
(315.47mm)
-0.63"
(-16.00mm)
48th Driest
Driest since:
2002
80th Wettest
Wettest since:
1942
Ties: 1982
Jul 1930–Apr 1931
10-Month
14.93"
(379.22mm)
14.52"
(368.81mm)
0.41"
(10.41mm)
70th Driest
Driest since:
1902
58th Wettest
Wettest since:
1942
Jun 1930–Apr 1931
11-Month
15.76"
(400.30mm)
16.07"
(408.18mm)
-0.31"
(-7.88mm)
57th Driest
Driest since:
1981
71st Wettest
Wettest since:
1942
May 1930–Apr 1931
12-Month
18.34"
(465.84mm)
18.08"
(459.23mm)
0.26"
(6.61mm)
70th Driest
Driest since:
2013
58th Wettest
Wettest since:
1942
Ties: 1938
Nov 1929–Apr 1931
18-Month
23.98"
(609.09mm)
25.76"
(654.30mm)
-1.78"
(-45.21mm)
40th Driest
Driest since:
2013
87th Wettest
Wettest since:
1942
May 1929–Apr 1931
24-Month
36.06"
(915.92mm)
36.16"
(918.46mm)
-0.10"
(-2.54mm)
65th Driest
Driest since:
1902
62nd Wettest
Wettest since:
1942
May 1928–Apr 1931
36-Month
55.81"
(1,417.57mm)
54.22"
(1,377.19mm)
1.59"
(40.38mm)
83rd Driest
Driest since:
1955
43rd Wettest
Wettest since:
1985
May 1927–Apr 1931
48-Month
74.53"
(1,893.06mm)
72.24"
(1,834.90mm)
2.29"
(58.16mm)
85th Driest
Driest since:
1904
40th Wettest
Wettest since:
1986
May 1926–Apr 1931
60-Month
92.68"
(2,354.07mm)
90.24"
(2,292.10mm)
2.44"
(61.97mm)
82nd Driest
Driest since:
1957
42nd Wettest
Wettest since:
1987

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