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 August 2022. For more information, please see Climatological Rankings.


Wyoming

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
0.85"
(21.59mm)
1.24"
(31.50mm)
-0.39"
(-9.91mm)
42nd Driest Driest since: 2020 1979
86th Wettest Wettest since: 2019 1923
Ties: 1977, 2005
Aug–Sep 2021
2-Month
2.32"
(58.93mm)
2.31"
(58.67mm)
0.01"
(0.26mm)
73rd Driest Driest since: 2020 2012
55th Wettest Wettest since: 2019 1923
Ties: 1991
Jul–Sep 2021
3-Month
3.42"
(86.87mm)
3.59"
(91.19mm)
-0.17"
(-4.32mm)
68th Driest Driest since: 2020 1964
60th Wettest Wettest since: 2019 1923
Ties: 1957
Jun–Sep 2021
4-Month
4.24"
(107.70mm)
5.43"
(137.92mm)
-1.19"
(-30.22mm)
35th Driest Driest since: 2020 2012
93rd Wettest Wettest since: 2019 1923
Ties: 2002
May–Sep 2021
5-Month
5.98"
(151.89mm)
7.64"
(194.06mm)
-1.66"
(-42.17mm)
24th Driest Driest since: 2020 1919
104th Wettest Wettest since: 2019 1915
Apr–Sep 2021
6-Month
7.19"
(182.63mm)
9.42"
(239.27mm)
-2.23"
(-56.64mm)
21st Driest Driest since: 2020 2012
107th Wettest Wettest since: 2019 1941
Mar–Sep 2021
7-Month
8.49"
(215.65mm)
10.67"
(271.02mm)
-2.18"
(-55.37mm)
23rd Driest Driest since: 2020 2012
105th Wettest Wettest since: 2019 1941
Feb–Sep 2021
8-Month
9.78"
(248.41mm)
11.63"
(295.40mm)
-1.85"
(-46.99mm)
27th Driest Driest since: 2020 2012
101st Wettest Wettest since: 2019 1945
Jan–Sep 2021
9-Month
10.46"
(265.68mm)
12.70"
(322.58mm)
-2.24"
(-56.90mm)
25th Driest Driest since: 2020 1919
103rd Wettest Wettest since: 2019 1915, 1945
Dec 2020–Sep 2021
10-Month
11.17"
(283.72mm)
13.71"
(348.23mm)
-2.54"
(-64.51mm)
21st Driest Driest since: 2020 1919
106th Wettest Wettest since: 2019 1923
Nov 2020–Sep 2021
11-Month
11.86"
(301.24mm)
14.74"
(374.40mm)
-2.88"
(-73.16mm)
16th Driest Driest since: 2020 1919
111th Wettest Wettest since: 2019 1923
Oct 2020–Sep 2021
12-Month
12.87"
(326.90mm)
15.94"
(404.88mm)
-3.07"
(-77.98mm)
18th Driest Driest since: 2020 1919
109th Wettest Wettest since: 2019 1995
Apr 2020–Sep 2021
18-Month
18.92"
(480.57mm)
25.35"
(643.89mm)
-6.43"
(-163.32mm)
1st Driest Driest since: 2021 2021
126th Wettest Wettest since: 2020 1945
Oct 2019–Sep 2021
24-Month
25.26"
(641.60mm)
31.88"
(809.75mm)
-6.62"
(-168.15mm)
5th Driest Driest since: 2002 2002
121st Wettest Wettest since: 2020 1998
Oct 2018–Sep 2021
36-Month
43.87"
(1,114.30mm)
47.81"
(1,214.37mm)
-3.94"
(-100.07mm)
25th Driest Driest since: 2007 2002
100th Wettest Wettest since: 2020 1997
Oct 2017–Sep 2021
48-Month
59.93"
(1,522.22mm)
63.72"
(1,618.49mm)
-3.79"
(-96.27mm)
32nd Driest Driest since: 2008 2003
92nd Wettest Wettest since: 2020 1998
Oct 2016–Sep 2021
60-Month
79.77"
(2,026.16mm)
79.56"
(2,020.82mm)
0.21"
(5.34mm)
66th Driest Driest since: 2016 2004
57th Wettest Wettest since: 2020 1999

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, Precipitation, published September 2022, retrieved on September 24, 2022 from https://www.ncdc.noaa.gov/cag/