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 2022

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  • Record Wettest
PeriodValue1901-2000
Mean		AnomalyRank
(1895-2022)		Wettest/Driest
Since		Record
September 2022
1-Month		1.21"
(30.73mm)		1.43"
(36.32mm)		-0.22"
(-5.59mm)		54th Driest
Driest since:
1956
75th Wettest
Wettest since:
2013
Aug–Sep 2022
2-Month		3.13"
(79.50mm)		3.46"
(87.88mm)		-0.33"
(-8.38mm)		51st Driest
Driest since:
1944
78th Wettest
Wettest since:
2013
Jul–Sep 2022
3-Month		5.95"
(151.13mm)		5.56"
(141.22mm)		0.39"
(9.91mm)		79th Driest
Driest since:
1900
50th Wettest
Wettest since:
2013
Jun–Sep 2022
4-Month		7.36"
(186.94mm)		7.10"
(180.34mm)		0.26"
(6.60mm)		81st Driest
Driest since:
1924
48th Wettest
Wettest since:
1965
Ties: 1895
May–Sep 2022
5-Month		8.96"
(227.58mm)		9.12"
(231.65mm)		-0.16"
(-4.07mm)		70th Driest
Driest since:
1939
59th Wettest
Wettest since:
1965
Ties: 2021
Apr–Sep 2022
6-Month		9.69"
(246.13mm)		10.96"
(278.38mm)		-1.27"
(-32.25mm)		32nd Driest
Driest since:
1939
97th Wettest
Wettest since:
1999
Ties: 1963
Mar–Sep 2022
7-Month		11.13"
(282.70mm)		12.47"
(316.74mm)		-1.34"
(-34.04mm)		38th Driest
Driest since:
2002
91st Wettest
Wettest since:
1941
Feb–Sep 2022
8-Month		12.07"
(306.58mm)		13.56"
(344.42mm)		-1.49"
(-37.84mm)		31st Driest
Driest since:
2002
98th Wettest
Wettest since:
1941
Ties: 1951, 1952
Jan–Sep 2022
9-Month		12.85"
(326.39mm)		14.62"
(371.35mm)		-1.77"
(-44.96mm)		29th Driest
Driest since:
2002
100th Wettest
Wettest since:
1957
Dec 2021–Sep 2022
10-Month		14.57"
(370.08mm)		15.70"
(398.78mm)		-1.13"
(-28.70mm)		44th Driest
Driest since:
2002
84th Wettest
Wettest since:
1957
Nov 2021–Sep 2022
11-Month		14.94"
(379.48mm)		16.76"
(425.70mm)		-1.82"
(-46.22mm)		32nd Driest
Driest since:
2002
96th Wettest
Wettest since:
1941
Oct 2021–Sep 2022
12-Month		16.06"
(407.92mm)		18.10"
(459.74mm)		-2.04"
(-51.82mm)		33rd Driest
Driest since:
2002
95th Wettest
Wettest since:
1995
Apr 2021–Sep 2022
18-Month		26.03"
(661.16mm)		29.08"
(738.63mm)		-3.05"
(-77.47mm)		27th Driest
Driest since:
2002
101st Wettest
Wettest since:
1942
Oct 2020–Sep 2022
24-Month		32.38"
(822.45mm)		36.22"
(919.99mm)		-3.84"
(-97.54mm)		24th Driest
Driest since:
2003
103rd Wettest
Wettest since:
1942
Oct 2019–Sep 2022
36-Month		45.53"
(1,156.46mm)		54.27"
(1,378.46mm)		-8.74"
(-222.00mm)		5th Driest
Driest since:
1956
121st Wettest
Wettest since:
1997
Oct 2018–Sep 2022
48-Month		65.10"
(1,653.54mm)		72.31"
(1,836.67mm)		-7.21"
(-183.13mm)		17th Driest
Driest since:
1956
108th Wettest
Wettest since:
1998
Oct 2017–Sep 2022
60-Month		77.90"
(1,978.66mm)		90.33"
(2,294.38mm)		-12.43"
(-315.72mm)		1st Driest
Driest to Date
2022
123rd Wettest
Wettest since:
1999

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