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 2001

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  • Record Wettest
Period Value 1901-2000
Mean		 Anomaly Rank
(1895-2022)		 Wettest/Driest
Since		 Record
April 2001
1-Month 		1.65"
(41.91mm)		 1.84"
(46.74mm)		 -0.19"
(-4.83mm)		 66th Driest
Driest since:
 2002
63rd Wettest
Wettest since:
 1900
Mar–Apr 2001
2-Month 		3.07"
(77.98mm)		 3.35"
(85.09mm)		 -0.28"
(-7.11mm)		 56th Driest
Driest since:
 2002
73rd Wettest
Wettest since:
 1906
Feb–Apr 2001
3-Month 		4.21"
(106.93mm)		 4.44"
(112.78mm)		 -0.23"
(-5.85mm)		 61st Driest
Driest since:
 2002
68th Wettest
Wettest since:
 1905
Ties: 1917, 1978
Jan–Apr 2001
4-Month 		5.23"
(132.84mm)		 5.51"
(139.95mm)		 -0.28"
(-7.11mm)		 59th Driest
Driest since:
 2002
70th Wettest
Wettest since:
 1905
Ties: 1962
Dec 2000–Apr 2001
5-Month 		6.05"
(153.67mm)		 6.58"
(167.13mm)		 -0.53"
(-13.46mm)		 51st Driest
Driest since:
 2002
77th Wettest
Wettest since:
 1905
Ties: 2015
Nov 2000–Apr 2001
6-Month 		6.88"
(174.75mm)		 7.65"
(194.31mm)		 -0.77"
(-19.56mm)		 43rd Driest
Driest since:
 1904
85th Wettest
Wettest since:
 1984
Oct 2000–Apr 2001
7-Month 		8.64"
(219.46mm)		 8.98"
(228.09mm)		 -0.34"
(-8.63mm)		 58th Driest
Driest since:
 2002
70th Wettest
Wettest since:
 1942
Ties: 1971
Sep 2000–Apr 2001
8-Month 		9.99"
(253.75mm)		 10.41"
(264.41mm)		 -0.42"
(-10.66mm)		 55th Driest
Driest since:
 1902, 2002
73rd Wettest
Wettest since:
 1942
Ties: 2004
Aug 2000–Apr 2001
9-Month 		12.00"
(304.80mm)		 12.42"
(315.47mm)		 -0.42"
(-10.67mm)		 57th Driest
Driest since:
 2002
71st Wettest
Wettest since:
 1942
Jul 2000–Apr 2001
10-Month 		13.63"
(346.20mm)		 14.52"
(368.81mm)		 -0.89"
(-22.61mm)		 49th Driest
Driest since:
 1902
79th Wettest
Wettest since:
 1942
Jun 2000–Apr 2001
11-Month 		14.63"
(371.60mm)		 16.07"
(408.18mm)		 -1.44"
(-36.58mm)		 39th Driest
Driest since:
 1981
89th Wettest
Wettest since:
 1942
May 2000–Apr 2001
12-Month 		15.83"
(402.08mm)		 18.08"
(459.23mm)		 -2.25"
(-57.15mm)		 26th Driest
Driest since:
 2013
102nd Wettest
Wettest since:
 1942
Nov 1999–Apr 2001
18-Month 		23.24"
(590.30mm)		 25.76"
(654.30mm)		 -2.52"
(-64.00mm)		 29th Driest
Driest since:
 2013
98th Wettest
Wettest since:
 1942
May 1999–Apr 2001
24-Month 		35.34"
(897.64mm)		 36.16"
(918.46mm)		 -0.82"
(-20.82mm)		 52nd Driest
Driest since:
 1902
75th Wettest
Wettest since:
 1942
May 1998–Apr 2001
36-Month 		55.44"
(1,408.18mm)		 54.22"
(1,377.19mm)		 1.22"
(30.99mm)		 75th Driest
Driest since:
 1955
51st Wettest
Wettest since:
 1985
May 1997–Apr 2001
48-Month 		77.42"
(1,966.47mm)		 72.24"
(1,834.90mm)		 5.18"
(131.57mm)		 107th Driest
Driest since:
 1904
18th Wettest
Wettest since:
 1986
May 1996–Apr 2001
60-Month 		97.62"
(2,479.55mm)		 90.24"
(2,292.10mm)		 7.38"
(187.45mm)		 114th Driest
Driest since:
 1957
10th Wettest
Wettest since:
 1987

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