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 1999

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PeriodValue1901-2000
Mean		AnomalyRank
(1895-2022)		Wettest/Driest
Since		Record
August 1999
1-Month		3.27"
(83.06mm)		2.03"
(51.56mm)		1.24"
(31.50mm)		125th Driest
Driest since:
1960
4th Wettest
Wettest since:
1997
Jul–Aug 1999
2-Month		5.86"
(148.84mm)		4.13"
(104.90mm)		1.73"
(43.94mm)		126th Driest
Driest since:
1900
3rd Wettest
Wettest since:
1923
Jun–Aug 1999
3-Month		7.50"
(190.50mm)		5.67"
(144.02mm)		1.83"
(46.48mm)		121st Driest
Driest since:
1924
8th Wettest
Wettest since:
1965
May–Aug 1999
4-Month		10.14"
(257.56mm)		7.69"
(195.33mm)		2.45"
(62.23mm)		120th Driest
Driest since:
2002
9th Wettest
Wettest since:
1957
Apr–Aug 1999
5-Month		14.52"
(368.81mm)		9.53"
(242.06mm)		4.99"
(126.75mm)		127th Driest
Driest since:
2002
2nd Wettest
Wettest since:
1957
Mar–Aug 1999
6-Month		15.24"
(387.10mm)		11.04"
(280.42mm)		4.20"
(106.68mm)		126th Driest
Driest since:
2002
3rd Wettest
Wettest since:
1957
Feb–Aug 1999
7-Month		15.90"
(403.86mm)		12.13"
(308.10mm)		3.77"
(95.76mm)		126th Driest
Driest since:
2002
3rd Wettest
Wettest since:
1957
Jan–Aug 1999
8-Month		16.97"
(431.04mm)		13.20"
(335.28mm)		3.77"
(95.76mm)		125th Driest
Driest since:
2002
4th Wettest
Wettest since:
1957
Dec 1998–Aug 1999
9-Month		17.60"
(447.04mm)		14.27"
(362.46mm)		3.33"
(84.58mm)		121st Driest
Driest since:
2002
7th Wettest
Wettest since:
1957
Nov 1998–Aug 1999
10-Month		18.94"
(481.08mm)		15.34"
(389.64mm)		3.60"
(91.44mm)		119th Driest
Driest since:
2002
9th Wettest
Wettest since:
1957
Oct 1998–Aug 1999
11-Month		21.44"
(544.58mm)		16.67"
(423.42mm)		4.77"
(121.16mm)		125th Driest
Driest since:
2002
3rd Wettest
Wettest since:
1957
Sep 1998–Aug 1999
12-Month		22.33"
(567.18mm)		18.10"
(459.74mm)		4.23"
(107.44mm)		122nd Driest
Driest since:
2002
6th Wettest
Wettest since:
1941
Mar 1998–Aug 1999
18-Month		33.86"
(860.04mm)		29.15"
(740.41mm)		4.71"
(119.63mm)		122nd Driest
Driest since:
2002
6th Wettest
Wettest since:
1942
Sep 1997–Aug 1999
24-Month		42.51"
(1,079.75mm)		36.21"
(919.73mm)		6.30"
(160.02mm)		124th Driest
Driest since:
2003
3rd Wettest
Wettest since:
1942
Sep 1996–Aug 1999
36-Month		64.49"
(1,638.05mm)		54.26"
(1,378.20mm)		10.23"
(259.85mm)		124th Driest
Driest since:
2002
2nd Wettest
Wettest since:
1943
Sep 1995–Aug 1999
48-Month		81.86"
(2,079.24mm)		72.29"
(1,836.17mm)		9.57"
(243.07mm)		121st Driest
Driest since:
1956
4th Wettest
Wettest since:
1944
Sep 1994–Aug 1999
60-Month		105.19"
(2,671.83mm)		90.31"
(2,293.87mm)		14.88"
(377.96mm)		123rd Driest
Driest since:
2004
1st Wettest
Wettest to Date
1999

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