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, September 1986

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  • Record Wettest
PeriodValue1901-2000
Mean		AnomalyRank
(1895-2022)		Wettest/Driest
Since		Record
September 1986
1-Month		2.06"
(52.32mm)		1.43"
(36.32mm)		0.63"
(16.00mm)		102nd Driest
Driest since:
1956
27th Wettest
Wettest since:
2013
Aug–Sep 1986
2-Month		4.19"
(106.43mm)		3.46"
(87.88mm)		0.73"
(18.55mm)		102nd Driest
Driest since:
1944
27th Wettest
Wettest since:
2013
Jul–Sep 1986
3-Month		6.52"
(165.61mm)		5.56"
(141.22mm)		0.96"
(24.39mm)		107th Driest
Driest since:
1900
22nd Wettest
Wettest since:
2013
Jun–Sep 1986
4-Month		8.60"
(218.44mm)		7.10"
(180.34mm)		1.50"
(38.10mm)		109th Driest
Driest since:
1924
20th Wettest
Wettest since:
1965
May–Sep 1986
5-Month		10.10"
(256.54mm)		9.12"
(231.65mm)		0.98"
(24.89mm)		97th Driest
Driest since:
1939
32nd Wettest
Wettest since:
1965
Apr–Sep 1986
6-Month		12.44"
(315.98mm)		10.96"
(278.38mm)		1.48"
(37.60mm)		105th Driest
Driest since:
1939
24th Wettest
Wettest since:
1999
Ties: 2013
Mar–Sep 1986
7-Month		13.46"
(341.88mm)		12.47"
(316.74mm)		0.99"
(25.14mm)		92nd Driest
Driest since:
2002
37th Wettest
Wettest since:
1941
Feb–Sep 1986
8-Month		15.00"
(381.00mm)		13.56"
(344.42mm)		1.44"
(36.58mm)		105th Driest
Driest since:
2002
24th Wettest
Wettest since:
1941
Ties: 1982
Jan–Sep 1986
9-Month		15.34"
(389.64mm)		14.62"
(371.35mm)		0.72"
(18.29mm)		86th Driest
Driest since:
2002
43rd Wettest
Wettest since:
1957
Dec 1985–Sep 1986
10-Month		16.23"
(412.24mm)		15.70"
(398.78mm)		0.53"
(13.46mm)		81st Driest
Driest since:
2002
47th Wettest
Wettest since:
1957
Nov 1985–Sep 1986
11-Month		18.52"
(470.41mm)		16.76"
(425.70mm)		1.76"
(44.71mm)		100th Driest
Driest since:
2002
28th Wettest
Wettest since:
1941
Oct 1985–Sep 1986
12-Month		20.25"
(514.35mm)		18.10"
(459.74mm)		2.15"
(54.61mm)		102nd Driest
Driest since:
2002
26th Wettest
Wettest since:
1995
Ties: 1905
Apr 1985–Sep 1986
18-Month		32.12"
(815.85mm)		29.08"
(738.63mm)		3.04"
(77.22mm)		106th Driest
Driest since:
2002
22nd Wettest
Wettest since:
1942
Oct 1984–Sep 1986
24-Month		41.01"
(1,041.65mm)		36.22"
(919.99mm)		4.79"
(121.66mm)		119th Driest
Driest since:
2003
8th Wettest
Wettest since:
1942
Oct 1983–Sep 1986
36-Month		62.13"
(1,578.10mm)		54.27"
(1,378.46mm)		7.86"
(199.64mm)		122nd Driest
Driest since:
1956
4th Wettest
Wettest since:
1997
Oct 1982–Sep 1986
48-Month		81.84"
(2,078.74mm)		72.31"
(1,836.67mm)		9.53"
(242.07mm)		122nd Driest
Driest since:
1956
3rd Wettest
Wettest since:
1998
Oct 1981–Sep 1986
60-Month		102.20"
(2,595.88mm)		90.33"
(2,294.38mm)		11.87"
(301.50mm)		122nd Driest
Driest since:
2022
2nd Wettest
Wettest to Date
1999

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