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, August 1900

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Period Value 1901-2000
Mean		 Anomaly Rank
(1895-2022)		 Wettest/Driest
Since		 Record
August 1900
1-Month 		0.73"
(18.54mm)		 2.03"
(51.56mm)		 -1.30"
(-33.02mm)		 3rd Driest
Driest to Date
 1960
126th Wettest
Wettest since:
 1997
Jul–Aug 1900
2-Month 		1.74"
(44.20mm)		 4.13"
(104.90mm)		 -2.39"
(-60.70mm)		 1st Driest
Driest to Date
 1900
128th Wettest
Wettest since:
 1923
Jun–Aug 1900
3-Month 		3.17"
(80.52mm)		 5.67"
(144.02mm)		 -2.50"
(-63.50mm)		 3rd Driest
Driest to Date
 1924
126th Wettest
Wettest since:
 1965
May–Aug 1900
4-Month 		4.51"
(114.55mm)		 7.69"
(195.33mm)		 -3.18"
(-80.78mm)		 3rd Driest
Driest to Date
 2002
126th Wettest
Wettest since:
 1957
Apr–Aug 1900
5-Month 		9.96"
(252.98mm)		 9.53"
(242.06mm)		 0.43"
(10.92mm)		 85th Driest
Driest since:
 2002
44th Wettest
Wettest since:
 1957
Mar–Aug 1900
6-Month 		10.46"
(265.68mm)		 11.04"
(280.42mm)		 -0.58"
(-14.74mm)		 52nd Driest
Driest since:
 2002
77th Wettest
Wettest since:
 1957
Feb–Aug 1900
7-Month 		11.53"
(292.86mm)		 12.13"
(308.10mm)		 -0.60"
(-15.24mm)		 49th Driest
Driest since:
 2002
80th Wettest
Wettest since:
 1957
Jan–Aug 1900
8-Month 		11.85"
(300.99mm)		 13.20"
(335.28mm)		 -1.35"
(-34.29mm)		 34th Driest
Driest since:
 2002
95th Wettest
Wettest since:
 1957
Dec 1899–Aug 1900
9-Month 		13.31"
(338.07mm)		 14.27"
(362.46mm)		 -0.96"
(-24.39mm)		 39th Driest
Driest since:
 2002
89th Wettest
Wettest since:
 1957
Nov 1899–Aug 1900
10-Month 		14.27"
(362.46mm)		 15.34"
(389.64mm)		 -1.07"
(-27.18mm)		 46th Driest
Driest since:
 2002
82nd Wettest
Wettest since:
 1957
Oct 1899–Aug 1900
11-Month 		16.20"
(411.48mm)		 16.67"
(423.42mm)		 -0.47"
(-11.94mm)		 60th Driest
Driest since:
 2002
68th Wettest
Wettest since:
 1957
Sep 1899–Aug 1900
12-Month 		16.90"
(429.26mm)		 18.10"
(459.74mm)		 -1.20"
(-30.48mm)		 51st Driest
Driest since:
 2002
77th Wettest
Wettest since:
 1941
Mar 1899–Aug 1900
18-Month 		25.70"
(652.78mm)		 29.15"
(740.41mm)		 -3.45"
(-87.63mm)		 23rd Driest
Driest to Date
 2002
105th Wettest
Wettest since:
 1942
Sep 1898–Aug 1900
24-Month 		32.38"
(822.45mm)		 36.21"
(919.73mm)		 -3.83"
(-97.28mm)		 20th Driest
Driest to Date
 2003
107th Wettest
Wettest since:
 1942
Sep 1897–Aug 1900
36-Month 		51.53"
(1,308.86mm)		 54.26"
(1,378.20mm)		 -2.73"
(-69.34mm)		 37th Driest
Driest to Date
 2002
89th Wettest
Wettest since:
 1943
Sep 1896–Aug 1900
48-Month 		71.95"
(1,827.53mm)		 72.29"
(1,836.17mm)		 -0.34"
(-8.64mm)		 61st Driest
Driest since:
 1956
64th Wettest
Wettest to Date
 1944
Sep 1895–Aug 1900
60-Month 		87.55"
(2,223.77mm)		 90.31"
(2,293.87mm)		 -2.76"
(-70.10mm)		 44th Driest
Driest to Date
 2004
80th Wettest
Wettest to Date
 1999

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