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 2021. For more information, please see Climatological Rankings.


Wyoming

Precipitation Rankings, September 1921

View Period (Months):All1234567891011121824364860
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  • Record Driest
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2020)
Wettest/Driest
Since
Record
September 1921
1-Month
0.57"
(14.48mm)
1.24"
(31.50mm)
-0.67"
(-17.02mm)
22nd Driest Driest since: 1916 1979
105th Wettest Wettest since: 1920 1923
Ties: 1974
Aug–Sep 1921
2-Month
1.44"
(36.58mm)
2.31"
(58.67mm)
-0.87"
(-22.09mm)
22nd Driest Driest since: 1916 2012
105th Wettest Wettest since: 1920 1923
Jul–Sep 1921
3-Month
2.40"
(60.96mm)
3.59"
(91.19mm)
-1.19"
(-30.23mm)
20th Driest Driest since: 1917 1964
107th Wettest Wettest since: 1920 1923
Jun–Sep 1921
4-Month
4.61"
(117.09mm)
5.43"
(137.92mm)
-0.82"
(-20.83mm)
47th Driest Driest since: 1920 2012
80th Wettest Wettest since: 1918 1923
May–Sep 1921
5-Month
7.11"
(180.59mm)
7.64"
(194.06mm)
-0.53"
(-13.47mm)
50th Driest Driest since: 1920 1919
77th Wettest Wettest since: 1918 1915
Ties: 1952
Apr–Sep 1921
6-Month
8.59"
(218.19mm)
9.42"
(239.27mm)
-0.83"
(-21.08mm)
45th Driest Driest since: 1919 2012
82nd Wettest Wettest since: 1920 1941
Mar–Sep 1921
7-Month
9.60"
(243.84mm)
10.67"
(271.02mm)
-1.07"
(-27.18mm)
32nd Driest Driest since: 1919 2012
95th Wettest Wettest since: 1920 1941
Ties: 1948, 1952
Feb–Sep 1921
8-Month
10.18"
(258.57mm)
11.63"
(295.40mm)
-1.45"
(-36.83mm)
28th Driest Driest since: 1919 2012
99th Wettest Wettest since: 1920 1945
Ties: 1900
Jan–Sep 1921
9-Month
11.36"
(288.54mm)
12.70"
(322.58mm)
-1.34"
(-34.04mm)
30th Driest Driest since: 1919 1919
97th Wettest Wettest since: 1920 1915, 1945
Dec 1920–Sep 1921
10-Month
12.42"
(315.47mm)
13.71"
(348.23mm)
-1.29"
(-32.76mm)
37th Driest Driest since: 1919 1919
89th Wettest Wettest since: 1920 1923
Nov 1920–Sep 1921
11-Month
13.33"
(338.58mm)
14.74"
(374.40mm)
-1.41"
(-35.82mm)
35th Driest Driest since: 1919 1919
91st Wettest Wettest since: 1920 1923
Oct 1920–Sep 1921
12-Month
14.74"
(374.40mm)
15.94"
(404.88mm)
-1.20"
(-30.48mm)
40th Driest Driest since: 1919 1919
86th Wettest Wettest since: 1920 1995
Apr 1920–Sep 1921
18-Month
23.94"
(608.08mm)
25.35"
(643.89mm)
-1.41"
(-35.81mm)
46th Driest Driest since: 1920 1911
80th Wettest Wettest since: 1918 1945
Oct 1919–Sep 1921
24-Month
31.79"
(807.47mm)
31.88"
(809.75mm)
-0.09"
(-2.28mm)
59th Driest Driest since: 1920 2002
66th Wettest Wettest since: 1918 1998
Ties: 1912
Oct 1918–Sep 1921
36-Month
41.54"
(1,055.12mm)
47.81"
(1,214.37mm)
-6.27"
(-159.25mm)
14th Driest Driest since: 1902 2002
110th Wettest Wettest since: 1920 1997
Oct 1917–Sep 1921
48-Month
58.59"
(1,488.19mm)
63.72"
(1,618.49mm)
-5.13"
(-130.30mm)
20th Driest Driest since: 1919 2003
103rd Wettest Wettest since: 1920 1998
Ties: 1991
Oct 1916–Sep 1921
60-Month
74.75"
(1,898.65mm)
79.56"
(2,020.82mm)
-4.81"
(-122.17mm)
32nd Driest Driest since: 1920 2004
90th Wettest Wettest since: 1918 1999

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published September 2021, retrieved on September 25, 2021 from https://www.ncdc.noaa.gov/cag/