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 2005

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Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Wettest/Driest
Since
Record
April 2005
1-Month
1.97"
(50.04mm)
1.84"
(46.74mm)
0.13"
(3.30mm)
85th Driest
Driest since:
2002
44th Wettest
Wettest since:
1900
Mar–Apr 2005
2-Month
3.37"
(85.60mm)
3.35"
(85.09mm)
0.02"
(0.51mm)
73rd Driest
Driest since:
2002
56th Wettest
Wettest since:
1906
Ties: 1949
Feb–Apr 2005
3-Month
4.43"
(112.52mm)
4.44"
(112.78mm)
-0.01"
(-0.26mm)
77th Driest
Driest since:
2002
52nd Wettest
Wettest since:
1905
Ties: 1929, 1933, 2011
Jan–Apr 2005
4-Month
6.40"
(162.56mm)
5.51"
(139.95mm)
0.89"
(22.61mm)
104th Driest
Driest since:
2002
25th Wettest
Wettest since:
1905
Dec 2004–Apr 2005
5-Month
7.17"
(182.12mm)
6.58"
(167.13mm)
0.59"
(14.99mm)
89th Driest
Driest since:
2002
39th Wettest
Wettest since:
1905
Nov 2004–Apr 2005
6-Month
8.86"
(225.04mm)
7.65"
(194.31mm)
1.21"
(30.73mm)
104th Driest
Driest since:
1904
24th Wettest
Wettest since:
1984
Oct 2004–Apr 2005
7-Month
10.33"
(262.38mm)
8.98"
(228.09mm)
1.35"
(34.29mm)
101st Driest
Driest since:
2002
27th Wettest
Wettest since:
1942
Sep 2004–Apr 2005
8-Month
12.50"
(317.50mm)
10.41"
(264.41mm)
2.09"
(53.09mm)
114th Driest
Driest since:
1902, 2002
14th Wettest
Wettest since:
1942
Aug 2004–Apr 2005
9-Month
14.35"
(364.49mm)
12.42"
(315.47mm)
1.93"
(49.02mm)
110th Driest
Driest since:
2002
18th Wettest
Wettest since:
1942
Jul 2004–Apr 2005
10-Month
16.71"
(424.43mm)
14.52"
(368.81mm)
2.19"
(55.62mm)
111th Driest
Driest since:
1902
17th Wettest
Wettest since:
1942
Jun 2004–Apr 2005
11-Month
18.70"
(474.98mm)
16.07"
(408.18mm)
2.63"
(66.80mm)
115th Driest
Driest since:
1981
13th Wettest
Wettest since:
1942
May 2004–Apr 2005
12-Month
19.40"
(492.76mm)
18.08"
(459.23mm)
1.32"
(33.53mm)
91st Driest
Driest since:
2013
37th Wettest
Wettest since:
1942
Nov 2003–Apr 2005
18-Month
27.58"
(700.53mm)
25.76"
(654.30mm)
1.82"
(46.23mm)
98th Driest
Driest since:
2013
29th Wettest
Wettest since:
1942
May 2003–Apr 2005
24-Month
36.08"
(916.43mm)
36.16"
(918.46mm)
-0.08"
(-2.03mm)
66th Driest
Driest since:
1902
61st Wettest
Wettest since:
1942
May 2002–Apr 2005
36-Month
51.06"
(1,296.92mm)
54.22"
(1,377.19mm)
-3.16"
(-80.27mm)
35th Driest
Driest since:
1955
91st Wettest
Wettest since:
1985
May 2001–Apr 2005
48-Month
65.20"
(1,656.08mm)
72.24"
(1,834.90mm)
-7.04"
(-178.82mm)
18th Driest
Driest since:
1904
107th Wettest
Wettest since:
1986
May 2000–Apr 2005
60-Month
81.03"
(2,058.16mm)
90.24"
(2,292.10mm)
-9.21"
(-233.94mm)
12th Driest
Driest since:
1957
112th Wettest
Wettest since:
1987

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