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 1955

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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 1955
1-Month 		1.06"
(26.92mm)		 1.84"
(46.74mm)		 -0.78"
(-19.82mm)		 22nd Driest
Driest since:
 2002
107th Wettest
Wettest since:
 1900
Mar–Apr 1955
2-Month 		1.81"
(45.97mm)		 3.35"
(85.09mm)		 -1.54"
(-39.12mm)		 6th Driest
Driest since:
 2002
123rd Wettest
Wettest since:
 1906
Feb–Apr 1955
3-Month 		3.15"
(80.01mm)		 4.44"
(112.78mm)		 -1.29"
(-32.77mm)		 15th Driest
Driest since:
 2002
114th Wettest
Wettest since:
 1905
Jan–Apr 1955
4-Month 		3.92"
(99.57mm)		 5.51"
(139.95mm)		 -1.59"
(-40.38mm)		 14th Driest
Driest since:
 2002
115th Wettest
Wettest since:
 1905
Dec 1954–Apr 1955
5-Month 		4.71"
(119.63mm)		 6.58"
(167.13mm)		 -1.87"
(-47.50mm)		 10th Driest
Driest since:
 2002
118th Wettest
Wettest since:
 1905
Nov 1954–Apr 1955
6-Month 		5.59"
(141.99mm)		 7.65"
(194.31mm)		 -2.06"
(-52.32mm)		 9th Driest
Driest since:
 1904
119th Wettest
Wettest since:
 1984
Oct 1954–Apr 1955
7-Month 		6.81"
(172.97mm)		 8.98"
(228.09mm)		 -2.17"
(-55.12mm)		 11th Driest
Driest since:
 2002
117th Wettest
Wettest since:
 1942
Ties: 1966
Sep 1954–Apr 1955
8-Month 		8.49"
(215.65mm)		 10.41"
(264.41mm)		 -1.92"
(-48.76mm)		 21st Driest
Driest since:
 1902, 2002
107th Wettest
Wettest since:
 1942
Aug 1954–Apr 1955
9-Month 		10.19"
(258.83mm)		 12.42"
(315.47mm)		 -2.23"
(-56.64mm)		 20th Driest
Driest since:
 2002
108th Wettest
Wettest since:
 1942
Jul 1954–Apr 1955
10-Month 		12.37"
(314.20mm)		 14.52"
(368.81mm)		 -2.15"
(-54.61mm)		 21st Driest
Driest since:
 1902
107th Wettest
Wettest since:
 1942
Jun 1954–Apr 1955
11-Month 		13.05"
(331.47mm)		 16.07"
(408.18mm)		 -3.02"
(-76.71mm)		 18th Driest
Driest since:
 1981
110th Wettest
Wettest since:
 1942
May 1954–Apr 1955
12-Month 		14.74"
(374.40mm)		 18.08"
(459.23mm)		 -3.34"
(-84.83mm)		 15th Driest
Driest since:
 2013
113th Wettest
Wettest since:
 1942
Nov 1953–Apr 1955
18-Month 		20.26"
(514.60mm)		 25.76"
(654.30mm)		 -5.50"
(-139.70mm)		 5th Driest
Driest since:
 2013
122nd Wettest
Wettest since:
 1942
May 1953–Apr 1955
24-Month 		29.29"
(743.97mm)		 36.16"
(918.46mm)		 -6.87"
(-174.49mm)		 6th Driest
Driest since:
 1902
121st Wettest
Wettest since:
 1942
May 1952–Apr 1955
36-Month 		43.84"
(1,113.54mm)		 54.22"
(1,377.19mm)		 -10.38"
(-263.65mm)		 1st Driest
Driest since:
 1955
125th Wettest
Wettest since:
 1985
May 1951–Apr 1955
48-Month 		64.17"
(1,629.92mm)		 72.24"
(1,834.90mm)		 -8.07"
(-204.98mm)		 13th Driest
Driest since:
 1904
112th Wettest
Wettest since:
 1986
May 1950–Apr 1955
60-Month 		78.94"
(2,005.08mm)		 90.24"
(2,292.10mm)		 -11.30"
(-287.02mm)		 4th Driest
Driest since:
 1957
120th Wettest
Wettest since:
 1987

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