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 1987

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  • Record Wettest
PeriodValue1901-2000
Mean
AnomalyRank
(1895-2023)
Wettest/Driest
Since
Record
April 1987
1-Month
0.86"
(21.84mm)
1.84"
(46.74mm)
-0.98"
(-24.90mm)
12th Driest
Driest since:
2002
118th Wettest
Wettest since:
1900
Ties: 1936
Mar–Apr 1987
2-Month
2.49"
(63.25mm)
3.35"
(85.09mm)
-0.86"
(-21.84mm)
31st Driest
Driest since:
2002
99th Wettest
Wettest since:
1906
Feb–Apr 1987
3-Month
4.30"
(109.22mm)
4.44"
(112.78mm)
-0.14"
(-3.56mm)
68th Driest
Driest since:
2002
62nd Wettest
Wettest since:
1905
Ties: 1947
Jan–Apr 1987
4-Month
5.41"
(137.41mm)
5.51"
(139.95mm)
-0.10"
(-2.54mm)
72nd Driest
Driest since:
2002
58th Wettest
Wettest since:
1905
Ties: 1996
Dec 1986–Apr 1987
5-Month
6.00"
(152.40mm)
6.58"
(167.13mm)
-0.58"
(-14.73mm)
48th Driest
Driest since:
2002
81st Wettest
Wettest since:
1905
Nov 1986–Apr 1987
6-Month
7.78"
(197.61mm)
7.65"
(194.31mm)
0.13"
(3.30mm)
73rd Driest
Driest since:
1904
56th Wettest
Wettest since:
1984
Ties: 1975
Oct 1986–Apr 1987
7-Month
9.90"
(251.46mm)
8.98"
(228.09mm)
0.92"
(23.37mm)
90th Driest
Driest since:
2002
39th Wettest
Wettest since:
1942
Sep 1986–Apr 1987
8-Month
11.96"
(303.78mm)
10.41"
(264.41mm)
1.55"
(39.37mm)
103rd Driest
Driest since:
1902, 2002
26th Wettest
Wettest since:
1942
Aug 1986–Apr 1987
9-Month
14.09"
(357.89mm)
12.42"
(315.47mm)
1.67"
(42.42mm)
104th Driest
Driest since:
2002
25th Wettest
Wettest since:
1942
Jul 1986–Apr 1987
10-Month
16.42"
(417.07mm)
14.52"
(368.81mm)
1.90"
(48.26mm)
102nd Driest
Driest since:
1902
27th Wettest
Wettest since:
1942
Jun 1986–Apr 1987
11-Month
18.50"
(469.90mm)
16.07"
(408.18mm)
2.43"
(61.72mm)
109th Driest
Driest since:
1981
20th Wettest
Wettest since:
1942
May 1986–Apr 1987
12-Month
20.00"
(508.00mm)
18.08"
(459.23mm)
1.92"
(48.77mm)
104th Driest
Driest since:
2013
25th Wettest
Wettest since:
1942
Nov 1985–Apr 1987
18-Month
28.42"
(721.87mm)
25.76"
(654.30mm)
2.66"
(67.57mm)
107th Driest
Driest since:
2013
21st Wettest
Wettest since:
1942
Ties: 1920
May 1985–Apr 1987
24-Month
39.56"
(1,004.82mm)
36.16"
(918.46mm)
3.40"
(86.36mm)
107th Driest
Driest since:
1902
21st Wettest
Wettest since:
1942
May 1984–Apr 1987
36-Month
60.32"
(1,532.13mm)
54.22"
(1,377.19mm)
6.10"
(154.94mm)
115th Driest
Driest since:
1955
12th Wettest
Wettest since:
1985
May 1983–Apr 1987
48-Month
81.70"
(2,075.18mm)
72.24"
(1,834.90mm)
9.46"
(240.28mm)
120th Driest
Driest since:
1904
6th Wettest
Wettest since:
1986
May 1982–Apr 1987
60-Month
103.62"
(2,631.95mm)
90.24"
(2,292.10mm)
13.38"
(339.85mm)
124th Driest
Driest since:
1957
1st Wettest
Wettest to Date
1987

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