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 October 2021. For more information, please see Climatological Rankings.


Wyoming

Precipitation Rankings, September 1940

View Period (Months):All1234567891011121824364860
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  • Record Driest
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2021)
Wettest/Driest
Since
Record
September 1940
1-Month
2.43"
(61.72mm)
1.24"
(31.50mm)
1.19"
(30.22mm)
120th Driest Driest since: 1939 1979
8th Wettest Wettest since: 1923 1923
Aug–Sep 1940
2-Month
2.91"
(73.91mm)
2.31"
(58.67mm)
0.60"
(15.24mm)
101st Driest Driest since: 1939 2012
27th Wettest Wettest since: 1930 1923
Jul–Sep 1940
3-Month
3.97"
(100.84mm)
3.59"
(91.19mm)
0.38"
(9.65mm)
88th Driest Driest since: 1939 1964
40th Wettest Wettest since: 1938 1923
Jun–Sep 1940
4-Month
5.33"
(135.38mm)
5.43"
(137.92mm)
-0.10"
(-2.54mm)
68th Driest Driest since: 1939 2012
60th Wettest Wettest since: 1938 1923
Ties: 1958
May–Sep 1940
5-Month
6.17"
(156.72mm)
7.64"
(194.06mm)
-1.47"
(-37.34mm)
28th Driest Driest since: 1939 1919
100th Wettest Wettest since: 1938 1915
Apr–Sep 1940
6-Month
9.22"
(234.19mm)
9.42"
(239.27mm)
-0.20"
(-5.08mm)
63rd Driest Driest since: 1939 2012
65th Wettest Wettest since: 1938 1941
Mar–Sep 1940
7-Month
10.31"
(261.87mm)
10.67"
(271.02mm)
-0.36"
(-9.15mm)
56th Driest Driest since: 1939 2012
72nd Wettest Wettest since: 1938 1941
Ties: 1972
Feb–Sep 1940
8-Month
11.54"
(293.12mm)
11.63"
(295.40mm)
-0.09"
(-2.28mm)
66th Driest Driest since: 1939 2012
62nd Wettest Wettest since: 1938 1945
Jan–Sep 1940
9-Month
13.15"
(334.01mm)
12.70"
(322.58mm)
0.45"
(11.43mm)
76th Driest Driest since: 1939 1919
52nd Wettest Wettest since: 1938 1915, 1945
Dec 1939–Sep 1940
10-Month
13.66"
(346.96mm)
13.71"
(348.23mm)
-0.05"
(-1.27mm)
65th Driest Driest since: 1939 1919
62nd Wettest Wettest since: 1938 1923
Nov 1939–Sep 1940
11-Month
13.68"
(347.47mm)
14.74"
(374.40mm)
-1.06"
(-26.93mm)
42nd Driest Driest since: 1939 1919
85th Wettest Wettest since: 1938 1923
Oct 1939–Sep 1940
12-Month
14.63"
(371.60mm)
15.94"
(404.88mm)
-1.31"
(-33.28mm)
38th Driest Driest since: 1939 1919
89th Wettest Wettest since: 1938 1995
Apr 1939–Sep 1940
18-Month
21.54"
(547.12mm)
25.35"
(643.89mm)
-3.81"
(-96.77mm)
20th Driest Driest since: 1935 2021
107th Wettest Wettest since: 1939 1945
Oct 1938–Sep 1940
24-Month
28.09"
(713.49mm)
31.88"
(809.75mm)
-3.79"
(-96.26mm)
22nd Driest Driest since: 1935 2002
104th Wettest Wettest since: 1939 1998
Oct 1937–Sep 1940
36-Month
45.54"
(1,156.72mm)
47.81"
(1,214.37mm)
-2.27"
(-57.65mm)
35th Driest Driest since: 1936 2002
90th Wettest Wettest since: 1939 1997
Oct 1936–Sep 1940
48-Month
62.59"
(1,589.79mm)
63.72"
(1,618.49mm)
-1.13"
(-28.70mm)
55th Driest Driest since: 1937 2003
69th Wettest Wettest since: 1939 1998
Oct 1935–Sep 1940
60-Month
77.37"
(1,965.20mm)
79.56"
(2,020.82mm)
-2.19"
(-55.62mm)
46th Driest Driest since: 1938 2004
77th Wettest Wettest since: 1939 1999

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published November 2021, retrieved on December 2, 2021 from https://www.ncdc.noaa.gov/cag/