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 1980

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 1980
1-Month
2.36"
(59.94mm)
1.84"
(46.74mm)
0.52"
(13.20mm)
103rd Driest
Driest since:
2002
26th Wettest
Wettest since:
1900
Ties: 2009
Mar–Apr 1980
2-Month
4.37"
(111.00mm)
3.35"
(85.09mm)
1.02"
(25.91mm)
113th Driest
Driest since:
2002
16th Wettest
Wettest since:
1906
Feb–Apr 1980
3-Month
6.11"
(155.19mm)
4.44"
(112.78mm)
1.67"
(42.41mm)
121st Driest
Driest since:
2002
8th Wettest
Wettest since:
1905
Jan–Apr 1980
4-Month
8.43"
(214.12mm)
5.51"
(139.95mm)
2.92"
(74.17mm)
123rd Driest
Driest since:
2002
6th Wettest
Wettest since:
1905
Dec 1979–Apr 1980
5-Month
9.38"
(238.25mm)
6.58"
(167.13mm)
2.80"
(71.12mm)
123rd Driest
Driest since:
2002
5th Wettest
Wettest since:
1905
Nov 1979–Apr 1980
6-Month
10.83"
(275.08mm)
7.65"
(194.31mm)
3.18"
(80.77mm)
125th Driest
Driest since:
1904
3rd Wettest
Wettest since:
1984
Oct 1979–Apr 1980
7-Month
11.99"
(304.55mm)
8.98"
(228.09mm)
3.01"
(76.46mm)
126th Driest
Driest since:
2002
2nd Wettest
Wettest since:
1942
Ties: 1909
Sep 1979–Apr 1980
8-Month
12.52"
(318.01mm)
10.41"
(264.41mm)
2.11"
(53.60mm)
115th Driest
Driest since:
1902, 2002
13th Wettest
Wettest since:
1942
Aug 1979–Apr 1980
9-Month
14.86"
(377.44mm)
12.42"
(315.47mm)
2.44"
(61.97mm)
116th Driest
Driest since:
2002
12th Wettest
Wettest since:
1942
Jul 1979–Apr 1980
10-Month
16.56"
(420.62mm)
14.52"
(368.81mm)
2.04"
(51.81mm)
108th Driest
Driest since:
1902
20th Wettest
Wettest since:
1942
Jun 1979–Apr 1980
11-Month
18.36"
(466.34mm)
16.07"
(408.18mm)
2.29"
(58.16mm)
105th Driest
Driest since:
1981
23rd Wettest
Wettest since:
1942
May 1979–Apr 1980
12-Month
21.40"
(543.56mm)
18.08"
(459.23mm)
3.32"
(84.33mm)
118th Driest
Driest since:
2013
10th Wettest
Wettest since:
1942
Nov 1978–Apr 1980
18-Month
31.47"
(799.34mm)
25.76"
(654.30mm)
5.71"
(145.04mm)
123rd Driest
Driest since:
2013
4th Wettest
Wettest since:
1942
May 1978–Apr 1980
24-Month
39.90"
(1,013.46mm)
36.16"
(918.46mm)
3.74"
(95.00mm)
111th Driest
Driest since:
1902
16th Wettest
Wettest since:
1942
May 1977–Apr 1980
36-Month
57.34"
(1,456.44mm)
54.22"
(1,377.19mm)
3.12"
(79.25mm)
98th Driest
Driest since:
1955
28th Wettest
Wettest since:
1985
May 1976–Apr 1980
48-Month
71.31"
(1,811.27mm)
72.24"
(1,834.90mm)
-0.93"
(-23.63mm)
55th Driest
Driest since:
1904
70th Wettest
Wettest since:
1986
May 1975–Apr 1980
60-Month
86.70"
(2,202.18mm)
90.24"
(2,292.10mm)
-3.54"
(-89.92mm)
39th Driest
Driest since:
1957
85th Wettest
Wettest since:
1987

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