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 1937

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  • Record Wettest
PeriodValue1901-2000
Mean		AnomalyRank
(1895-2023)		Wettest/Driest
Since		Record
April 1937
1-Month		1.14"
(28.96mm)		1.84"
(46.74mm)		-0.70"
(-17.78mm)		24th Driest
Driest since:
2002
106th Wettest
Wettest since:
1900
Ties: 1966, 1979, 2008
Mar–Apr 1937
2-Month		2.72"
(69.09mm)		3.35"
(85.09mm)		-0.63"
(-16.00mm)		42nd Driest
Driest since:
2002
88th Wettest
Wettest since:
1906
Ties: 1971
Feb–Apr 1937
3-Month		4.34"
(110.24mm)		4.44"
(112.78mm)		-0.10"
(-2.54mm)		70th Driest
Driest since:
2002
60th Wettest
Wettest since:
1905
Ties: 1914
Jan–Apr 1937
4-Month		5.13"
(130.30mm)		5.51"
(139.95mm)		-0.38"
(-9.65mm)		54th Driest
Driest since:
2002
76th Wettest
Wettest since:
1905
Ties: 2007
Dec 1936–Apr 1937
5-Month		6.32"
(160.53mm)		6.58"
(167.13mm)		-0.26"
(-6.60mm)		63rd Driest
Driest since:
2002
66th Wettest
Wettest since:
1905
Nov 1936–Apr 1937
6-Month		6.67"
(169.42mm)		7.65"
(194.31mm)		-0.98"
(-24.89mm)		34th Driest
Driest since:
1904
95th Wettest
Wettest since:
1984
Oct 1936–Apr 1937
7-Month		7.94"
(201.68mm)		8.98"
(228.09mm)		-1.04"
(-26.41mm)		40th Driest
Driest since:
2002
89th Wettest
Wettest since:
1942
Sep 1936–Apr 1937
8-Month		9.63"
(244.60mm)		10.41"
(264.41mm)		-0.78"
(-19.81mm)		51st Driest
Driest since:
1902, 2002
78th Wettest
Wettest since:
1942
Aug 1936–Apr 1937
9-Month		12.25"
(311.15mm)		12.42"
(315.47mm)		-0.17"
(-4.32mm)		63rd Driest
Driest since:
2002
66th Wettest
Wettest since:
1942
Jul 1936–Apr 1937
10-Month		14.44"
(366.78mm)		14.52"
(368.81mm)		-0.08"
(-2.03mm)		60th Driest
Driest since:
1902
69th Wettest
Wettest since:
1942
Jun 1936–Apr 1937
11-Month		15.84"
(402.34mm)		16.07"
(408.18mm)		-0.23"
(-5.84mm)		62nd Driest
Driest since:
1981
67th Wettest
Wettest since:
1942
May 1936–Apr 1937
12-Month		17.62"
(447.55mm)		18.08"
(459.23mm)		-0.46"
(-11.68mm)		55th Driest
Driest since:
2013
74th Wettest
Wettest since:
1942
Nov 1935–Apr 1937
18-Month		23.36"
(593.34mm)		25.76"
(654.30mm)		-2.40"
(-60.96mm)		32nd Driest
Driest since:
2013
96th Wettest
Wettest since:
1942
May 1935–Apr 1937
24-Month		34.28"
(870.71mm)		36.16"
(918.46mm)		-1.88"
(-47.75mm)		38th Driest
Driest since:
1902
90th Wettest
Wettest since:
1942
May 1934–Apr 1937
36-Month		48.36"
(1,228.34mm)		54.22"
(1,377.19mm)		-5.86"
(-148.85mm)		19th Driest
Driest since:
1955
108th Wettest
Wettest since:
1985
May 1933–Apr 1937
48-Month		64.27"
(1,632.46mm)		72.24"
(1,834.90mm)		-7.97"
(-202.44mm)		16th Driest
Driest since:
1904
110th Wettest
Wettest since:
1986
May 1932–Apr 1937
60-Month		79.35"
(2,015.49mm)		90.24"
(2,292.10mm)		-10.89"
(-276.61mm)		5th Driest
Driest since:
1957
120th Wettest
Wettest since:
1987
Ties: 2022

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