Climate at a Glance

Statewide Rankings

Look up monthly rankings for 1-12, 18, 24, 36, 48, and 60-month time periods using the options below. Data and statistics are as of December 2021. For more information, please see Climatological Rankings.


Colorado

Precipitation Rankings, September 2021

View Period (Months):All1234567891011121824364860
Download: xml csv json
  • Record Driest
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2021)
Wettest/Driest
Since
Record
September 2021
1-Month
1.22"
(30.99mm)
1.43"
(36.32mm)
-0.21"
(-5.33mm)
54th Driest Driest since: 2020 1956
74th Wettest Wettest since: 2017 2013
Aug–Sep 2021
2-Month
2.62"
(66.55mm)
3.46"
(87.88mm)
-0.84"
(-21.33mm)
27th Driest Driest since: 2020 1944
101st Wettest Wettest since: 2017 2013
Jul–Sep 2021
3-Month
4.76"
(120.90mm)
5.56"
(141.22mm)
-0.80"
(-20.32mm)
42nd Driest Driest since: 2020 1900
86th Wettest Wettest since: 2017 2013
Jun–Sep 2021
4-Month
5.93"
(150.62mm)
7.10"
(180.34mm)
-1.17"
(-29.72mm)
27th Driest Driest since: 2020 1924
101st Wettest Wettest since: 2017 1965
Ties: 1910
May–Sep 2021
5-Month
8.92"
(226.57mm)
9.12"
(231.65mm)
-0.20"
(-5.08mm)
69th Driest Driest since: 2020 1939
59th Wettest Wettest since: 2017 1965
Ties: 1917, 2011
Apr–Sep 2021
6-Month
9.93"
(252.22mm)
10.96"
(278.38mm)
-1.03"
(-26.16mm)
40th Driest Driest since: 2020 1939
88th Wettest Wettest since: 2017 1999
Ties: 1968
Mar–Sep 2021
7-Month
12.00"
(304.80mm)
12.47"
(316.74mm)
-0.47"
(-11.94mm)
57th Driest Driest since: 2020 2002
71st Wettest Wettest since: 2019 1941
Feb–Sep 2021
8-Month
13.11"
(332.99mm)
13.56"
(344.42mm)
-0.45"
(-11.43mm)
55th Driest Driest since: 2020 2002
73rd Wettest Wettest since: 2019 1941
Jan–Sep 2021
9-Month
13.85"
(351.79mm)
14.62"
(371.35mm)
-0.77"
(-19.56mm)
52nd Driest Driest since: 2020 2002
76th Wettest Wettest since: 2019 1957
Dec 2020–Sep 2021
10-Month
14.81"
(376.17mm)
15.70"
(398.78mm)
-0.89"
(-22.61mm)
48th Driest Driest since: 2020 2002
79th Wettest Wettest since: 2019 1957
Nov 2020–Sep 2021
11-Month
15.66"
(397.76mm)
16.76"
(425.70mm)
-1.10"
(-27.94mm)
46th Driest Driest since: 2020 2002
81st Wettest Wettest since: 2019 1941
Oct 2020–Sep 2021
12-Month
16.28"
(413.51mm)
18.10"
(459.74mm)
-1.82"
(-46.23mm)
38th Driest Driest since: 2020 2002
89th Wettest Wettest since: 2019 1995
Apr 2020–Sep 2021
18-Month
22.92"
(582.17mm)
29.08"
(738.63mm)
-6.16"
(-156.46mm)
2nd Driest Driest since: 2002 2002
125th Wettest Wettest since: 2020 1942
Oct 2019–Sep 2021
24-Month
29.43"
(747.52mm)
36.22"
(919.99mm)
-6.79"
(-172.47mm)
4th Driest Driest since: 2003 2003
122nd Wettest Wettest since: 2020 1942
Oct 2018–Sep 2021
36-Month
49.00"
(1,244.60mm)
54.27"
(1,378.46mm)
-5.27"
(-133.86mm)
19th Driest Driest since: 2020 1956
106th Wettest Wettest since: 2019 1997
Oct 2017–Sep 2021
48-Month
61.80"
(1,569.72mm)
72.31"
(1,836.67mm)
-10.51"
(-266.95mm)
3rd Driest Driest since: 2003 1956
121st Wettest Wettest since: 2020 1998
Oct 2016–Sep 2021
60-Month
81.92"
(2,080.77mm)
90.33"
(2,294.38mm)
-8.41"
(-213.61mm)
13th Driest Driest since: 2004 1956
110th Wettest Wettest since: 2020 1999

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published January 2022, retrieved on January 25, 2022 from https://www.ncdc.noaa.gov/cag/