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 1964

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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 1964
1-Month
1.70"
(43.18mm)
1.84"
(46.74mm)
-0.14"
(-3.56mm)
71st Driest
Driest since:
2002
58th Wettest
Wettest since:
1900
Ties: 1909
Mar–Apr 1964
2-Month
3.19"
(81.03mm)
3.35"
(85.09mm)
-0.16"
(-4.06mm)
63rd Driest
Driest since:
2002
66th Wettest
Wettest since:
1906
Feb–Apr 1964
3-Month
4.09"
(103.89mm)
4.44"
(112.78mm)
-0.35"
(-8.89mm)
54th Driest
Driest since:
2002
75th Wettest
Wettest since:
1905
Ties: 2015
Jan–Apr 1964
4-Month
4.67"
(118.62mm)
5.51"
(139.95mm)
-0.84"
(-21.33mm)
34th Driest
Driest since:
2002
95th Wettest
Wettest since:
1905
Ties: 1950, 1976, 1988
Dec 1963–Apr 1964
5-Month
5.31"
(134.87mm)
6.58"
(167.13mm)
-1.27"
(-32.26mm)
23rd Driest
Driest since:
2002
105th Wettest
Wettest since:
1905
Nov 1963–Apr 1964
6-Month
6.01"
(152.65mm)
7.65"
(194.31mm)
-1.64"
(-41.66mm)
22nd Driest
Driest since:
1904
106th Wettest
Wettest since:
1984
Oct 1963–Apr 1964
7-Month
6.90"
(175.26mm)
8.98"
(228.09mm)
-2.08"
(-52.83mm)
14th Driest
Driest since:
2002
114th Wettest
Wettest since:
1942
Sep 1963–Apr 1964
8-Month
8.70"
(220.98mm)
10.41"
(264.41mm)
-1.71"
(-43.43mm)
28th Driest
Driest since:
1902, 2002
100th Wettest
Wettest since:
1942
Aug 1963–Apr 1964
9-Month
12.11"
(307.59mm)
12.42"
(315.47mm)
-0.31"
(-7.88mm)
59th Driest
Driest since:
2002
69th Wettest
Wettest since:
1942
Jul 1963–Apr 1964
10-Month
13.65"
(346.71mm)
14.52"
(368.81mm)
-0.87"
(-22.10mm)
50th Driest
Driest since:
1902
78th Wettest
Wettest since:
1942
Jun 1963–Apr 1964
11-Month
15.20"
(386.08mm)
16.07"
(408.18mm)
-0.87"
(-22.10mm)
46th Driest
Driest since:
1981
82nd Wettest
Wettest since:
1942
May 1963–Apr 1964
12-Month
15.89"
(403.61mm)
18.08"
(459.23mm)
-2.19"
(-55.62mm)
28th Driest
Driest since:
2013
100th Wettest
Wettest since:
1942
Nov 1962–Apr 1964
18-Month
21.60"
(548.64mm)
25.76"
(654.30mm)
-4.16"
(-105.66mm)
14th Driest
Driest since:
2013
113th Wettest
Wettest since:
1942
May 1962–Apr 1964
24-Month
29.93"
(760.22mm)
36.16"
(918.46mm)
-6.23"
(-158.24mm)
9th Driest
Driest since:
1902
118th Wettest
Wettest since:
1942
May 1961–Apr 1964
36-Month
49.77"
(1,264.16mm)
54.22"
(1,377.19mm)
-4.45"
(-113.03mm)
25th Driest
Driest since:
1955
101st Wettest
Wettest since:
1985
May 1960–Apr 1964
48-Month
64.82"
(1,646.43mm)
72.24"
(1,834.90mm)
-7.42"
(-188.47mm)
17th Driest
Driest since:
1904
108th Wettest
Wettest since:
1986
May 1959–Apr 1964
60-Month
83.41"
(2,118.61mm)
90.24"
(2,292.10mm)
-6.83"
(-173.49mm)
23rd Driest
Driest since:
1957
101st Wettest
Wettest since:
1987

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