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 2012

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 2012
1-Month
1.38"
(35.05mm)
1.84"
(46.74mm)
-0.46"
(-11.69mm)
44th Driest
Driest since:
2002
85th Wettest
Wettest since:
1900
Mar–Apr 2012
2-Month
1.83"
(46.48mm)
3.35"
(85.09mm)
-1.52"
(-38.61mm)
7th Driest
Driest since:
2002
122nd Wettest
Wettest since:
1906
Feb–Apr 2012
3-Month
3.19"
(81.03mm)
4.44"
(112.78mm)
-1.25"
(-31.75mm)
16th Driest
Driest since:
2002
113th Wettest
Wettest since:
1905
Jan–Apr 2012
4-Month
3.88"
(98.55mm)
5.51"
(139.95mm)
-1.63"
(-41.40mm)
11th Driest
Driest since:
2002
118th Wettest
Wettest since:
1905
Dec 2011–Apr 2012
5-Month
4.79"
(121.67mm)
6.58"
(167.13mm)
-1.79"
(-45.46mm)
13th Driest
Driest since:
2002
115th Wettest
Wettest since:
1905
Nov 2011–Apr 2012
6-Month
5.78"
(146.81mm)
7.65"
(194.31mm)
-1.87"
(-47.50mm)
17th Driest
Driest since:
1904
111th Wettest
Wettest since:
1984
Ties: 1908
Oct 2011–Apr 2012
7-Month
7.44"
(188.98mm)
8.98"
(228.09mm)
-1.54"
(-39.11mm)
31st Driest
Driest since:
2002
97th Wettest
Wettest since:
1942
Sep 2011–Apr 2012
8-Month
8.71"
(221.23mm)
10.41"
(264.41mm)
-1.70"
(-43.18mm)
29th Driest
Driest since:
1902, 2002
99th Wettest
Wettest since:
1942
Aug 2011–Apr 2012
9-Month
10.31"
(261.87mm)
12.42"
(315.47mm)
-2.11"
(-53.60mm)
21st Driest
Driest since:
2002
107th Wettest
Wettest since:
1942
Jul 2011–Apr 2012
10-Month
12.85"
(326.39mm)
14.52"
(368.81mm)
-1.67"
(-42.42mm)
32nd Driest
Driest since:
1902
96th Wettest
Wettest since:
1942
Jun 2011–Apr 2012
11-Month
13.79"
(350.27mm)
16.07"
(408.18mm)
-2.28"
(-57.91mm)
25th Driest
Driest since:
1981
103rd Wettest
Wettest since:
1942
Ties: 1956
May 2011–Apr 2012
12-Month
16.36"
(415.54mm)
18.08"
(459.23mm)
-1.72"
(-43.69mm)
34th Driest
Driest since:
2013
94th Wettest
Wettest since:
1942
Nov 2010–Apr 2012
18-Month
24.10"
(612.14mm)
25.76"
(654.30mm)
-1.66"
(-42.16mm)
43rd Driest
Driest since:
2013
84th Wettest
Wettest since:
1942
Ties: 1899
May 2010–Apr 2012
24-Month
33.73"
(856.74mm)
36.16"
(918.46mm)
-2.43"
(-61.72mm)
36th Driest
Driest since:
1902
91st Wettest
Wettest since:
1942
May 2009–Apr 2012
36-Month
53.23"
(1,352.04mm)
54.22"
(1,377.19mm)
-0.99"
(-25.15mm)
52nd Driest
Driest since:
1955
74th Wettest
Wettest since:
1985
May 2008–Apr 2012
48-Month
70.75"
(1,797.05mm)
72.24"
(1,834.90mm)
-1.49"
(-37.85mm)
47th Driest
Driest since:
1904
78th Wettest
Wettest since:
1986
May 2007–Apr 2012
60-Month
89.52"
(2,273.81mm)
90.24"
(2,292.10mm)
-0.72"
(-18.29mm)
52nd Driest
Driest since:
1957
72nd Wettest
Wettest since:
1987

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