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 2019

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 2019
1-Month
1.44"
(36.58mm)
1.84"
(46.74mm)
-0.40"
(-10.16mm)
48th Driest
Driest since:
2002
81st Wettest
Wettest since:
1900
Mar–Apr 2019
2-Month
4.23"
(107.44mm)
3.35"
(85.09mm)
0.88"
(22.35mm)
110th Driest
Driest since:
2002
19th Wettest
Wettest since:
1906
Feb–Apr 2019
3-Month
5.80"
(147.32mm)
4.44"
(112.78mm)
1.36"
(34.54mm)
114th Driest
Driest since:
2002
15th Wettest
Wettest since:
1905
Jan–Apr 2019
4-Month
7.18"
(182.37mm)
5.51"
(139.95mm)
1.67"
(42.42mm)
119th Driest
Driest since:
2002
10th Wettest
Wettest since:
1905
Dec 2018–Apr 2019
5-Month
7.93"
(201.42mm)
6.58"
(167.13mm)
1.35"
(34.29mm)
108th Driest
Driest since:
2002
20th Wettest
Wettest since:
1905
Ties: 1915
Nov 2018–Apr 2019
6-Month
8.80"
(223.52mm)
7.65"
(194.31mm)
1.15"
(29.21mm)
102nd Driest
Driest since:
1904
26th Wettest
Wettest since:
1984
Ties: 1897, 1999
Oct 2018–Apr 2019
7-Month
11.19"
(284.23mm)
8.98"
(228.09mm)
2.21"
(56.14mm)
111th Driest
Driest since:
2002
17th Wettest
Wettest since:
1942
Sep 2018–Apr 2019
8-Month
11.85"
(300.99mm)
10.41"
(264.41mm)
1.44"
(36.58mm)
99th Driest
Driest since:
1902, 2002
29th Wettest
Wettest since:
1942
Aug 2018–Apr 2019
9-Month
13.30"
(337.82mm)
12.42"
(315.47mm)
0.88"
(22.35mm)
81st Driest
Driest since:
2002
47th Wettest
Wettest since:
1942
Ties: 2016
Jul 2018–Apr 2019
10-Month
15.41"
(391.41mm)
14.52"
(368.81mm)
0.89"
(22.60mm)
83rd Driest
Driest since:
1902
45th Wettest
Wettest since:
1942
Jun 2018–Apr 2019
11-Month
16.39"
(416.31mm)
16.07"
(408.18mm)
0.32"
(8.13mm)
72nd Driest
Driest since:
1981
56th Wettest
Wettest since:
1942
May 2018–Apr 2019
12-Month
17.93"
(455.42mm)
18.08"
(459.23mm)
-0.15"
(-3.81mm)
58th Driest
Driest since:
2013
70th Wettest
Wettest since:
1942
Nov 2017–Apr 2019
18-Month
23.06"
(585.72mm)
25.76"
(654.30mm)
-2.70"
(-68.58mm)
25th Driest
Driest since:
2013
102nd Wettest
Wettest since:
1942
May 2017–Apr 2019
24-Month
34.40"
(873.76mm)
36.16"
(918.46mm)
-1.76"
(-44.70mm)
41st Driest
Driest since:
1902
86th Wettest
Wettest since:
1942
May 2016–Apr 2019
36-Month
52.24"
(1,326.90mm)
54.22"
(1,377.19mm)
-1.98"
(-50.29mm)
41st Driest
Driest since:
1955
85th Wettest
Wettest since:
1985
May 2015–Apr 2019
48-Month
75.12"
(1,908.05mm)
72.24"
(1,834.90mm)
2.88"
(73.15mm)
90th Driest
Driest since:
1904
35th Wettest
Wettest since:
1986
May 2014–Apr 2019
60-Month
94.14"
(2,391.16mm)
90.24"
(2,292.10mm)
3.90"
(99.06mm)
92nd Driest
Driest since:
1957
32nd Wettest
Wettest since:
1987

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