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.

Wyoming

Precipitation Rankings, September 1923

View Period (Months):
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  • Record Driest
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Wettest/Driest
Since
Record
September 1923
1-Month
3.44"
(87.38mm)
1.24"
(31.50mm)
2.20"
(55.88mm)
128th Driest
Driest since:
1979
1st Wettest
Wettest to Date
1923
Aug–Sep 1923
2-Month
4.86"
(123.44mm)
2.31"
(58.67mm)
2.55"
(64.77mm)
128th Driest
Driest since:
2012
1st Wettest
Wettest to Date
1923
Jul–Sep 1923
3-Month
7.19"
(182.63mm)
3.59"
(91.19mm)
3.60"
(91.44mm)
128th Driest
Driest since:
1964
1st Wettest
Wettest to Date
1923
Jun–Sep 1923
4-Month
9.29"
(235.97mm)
5.43"
(137.92mm)
3.86"
(98.05mm)
128th Driest
Driest since:
2012
1st Wettest
Wettest to Date
1923
May–Sep 1923
5-Month
11.33"
(287.78mm)
7.64"
(194.06mm)
3.69"
(93.72mm)
127th Driest
Driest since:
1919
2nd Wettest
Wettest since:
1915
Apr–Sep 1923
6-Month
13.18"
(334.77mm)
9.42"
(239.27mm)
3.76"
(95.50mm)
126th Driest
Driest since:
2012
3rd Wettest
Wettest since:
1941
Mar–Sep 1923
7-Month
14.44"
(366.78mm)
10.67"
(271.02mm)
3.77"
(95.76mm)
126th Driest
Driest since:
2012
3rd Wettest
Wettest since:
1941
Feb–Sep 1923
8-Month
15.24"
(387.10mm)
11.63"
(295.40mm)
3.61"
(91.70mm)
124th Driest
Driest since:
2012
5th Wettest
Wettest since:
1945
Jan–Sep 1923
9-Month
16.34"
(415.04mm)
12.70"
(322.58mm)
3.64"
(92.46mm)
125th Driest
Driest since:
1919
4th Wettest
Wettest since:
1915, 1945
Dec 1922–Sep 1923
10-Month
17.64"
(448.06mm)
13.71"
(348.23mm)
3.93"
(99.83mm)
127th Driest
Driest since:
1919
1st Wettest
Wettest to Date
1923
Nov 1922–Sep 1923
11-Month
19.21"
(487.93mm)
14.74"
(374.40mm)
4.47"
(113.53mm)
127th Driest
Driest since:
1919
1st Wettest
Wettest to Date
1923
Oct 1922–Sep 1923
12-Month
19.94"
(506.48mm)
15.94"
(404.88mm)
4.00"
(101.60mm)
125th Driest
Driest since:
1919
3rd Wettest
Wettest to Date
1995
Apr 1922–Sep 1923
18-Month
29.06"
(738.12mm)
25.35"
(643.89mm)
3.71"
(94.23mm)
114th Driest
Driest since:
2021
14th Wettest
Wettest since:
1945
Ties: 1996
Oct 1921–Sep 1923
24-Month
35.75"
(908.05mm)
31.88"
(809.75mm)
3.87"
(98.30mm)
112th Driest
Driest since:
2002
15th Wettest
Wettest to Date
1998
Oct 1920–Sep 1923
36-Month
50.49"
(1,282.45mm)
47.81"
(1,214.37mm)
2.68"
(68.08mm)
94th Driest
Driest since:
2002
32nd Wettest
Wettest since:
1997
Oct 1919–Sep 1923
48-Month
67.54"
(1,715.52mm)
63.72"
(1,618.49mm)
3.82"
(97.03mm)
94th Driest
Driest since:
2003
31st Wettest
Wettest since:
1998
Oct 1918–Sep 1923
60-Month
77.29"
(1,963.17mm)
79.56"
(2,020.82mm)
-2.27"
(-57.65mm)
46th Driest
Driest since:
2004
78th Wettest
Wettest since:
1999

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