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 1916

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 1916
1-Month
0.38"
(9.65mm)
1.24"
(31.50mm)
-0.86"
(-21.85mm)
9th Driest
Driest since:
1979
120th Wettest
Wettest since:
1923
Ties: 1975
Aug–Sep 1916
2-Month
1.38"
(35.05mm)
2.31"
(58.67mm)
-0.93"
(-23.62mm)
20th Driest
Driest since:
2012
109th Wettest
Wettest since:
1923
Jul–Sep 1916
3-Month
2.29"
(58.17mm)
3.59"
(91.19mm)
-1.30"
(-33.02mm)
13th Driest
Driest since:
1964
116th Wettest
Wettest since:
1923
Jun–Sep 1916
4-Month
3.22"
(81.79mm)
5.43"
(137.92mm)
-2.21"
(-56.13mm)
8th Driest
Driest since:
2012
121st Wettest
Wettest since:
1923
May–Sep 1916
5-Month
4.78"
(121.41mm)
7.64"
(194.06mm)
-2.86"
(-72.65mm)
8th Driest
Driest since:
1919
121st Wettest
Wettest since:
1915
Apr–Sep 1916
6-Month
5.61"
(142.49mm)
9.42"
(239.27mm)
-3.81"
(-96.78mm)
4th Driest
Driest since:
2012
125th Wettest
Wettest since:
1941
Mar–Sep 1916
7-Month
6.86"
(174.24mm)
10.67"
(271.02mm)
-3.81"
(-96.78mm)
4th Driest
Driest since:
2012
125th Wettest
Wettest since:
1941
Feb–Sep 1916
8-Month
8.12"
(206.25mm)
11.63"
(295.40mm)
-3.51"
(-89.15mm)
7th Driest
Driest since:
2012
122nd Wettest
Wettest since:
1945
Ties: 1994
Jan–Sep 1916
9-Month
9.73"
(247.14mm)
12.70"
(322.58mm)
-2.97"
(-75.44mm)
17th Driest
Driest since:
1919
112th Wettest
Wettest since:
1915, 1945
Dec 1915–Sep 1916
10-Month
10.98"
(278.89mm)
13.71"
(348.23mm)
-2.73"
(-69.34mm)
20th Driest
Driest since:
1919
108th Wettest
Wettest since:
1923
Nov 1915–Sep 1916
11-Month
12.12"
(307.85mm)
14.74"
(374.40mm)
-2.62"
(-66.55mm)
20th Driest
Driest since:
1919
108th Wettest
Wettest since:
1923
Ties: 1900
Oct 1915–Sep 1916
12-Month
12.63"
(320.80mm)
15.94"
(404.88mm)
-3.31"
(-84.08mm)
15th Driest
Driest since:
1919
113th Wettest
Wettest since:
1995
Apr 1915–Sep 1916
18-Month
26.08"
(662.43mm)
25.35"
(643.89mm)
0.73"
(18.54mm)
73rd Driest
Driest since:
2021
55th Wettest
Wettest since:
1945
Oct 1914–Sep 1916
24-Month
31.11"
(790.19mm)
31.88"
(809.75mm)
-0.77"
(-19.56mm)
54th Driest
Driest since:
2002
73rd Wettest
Wettest since:
1998
Oct 1913–Sep 1916
36-Month
45.58"
(1,157.73mm)
47.81"
(1,214.37mm)
-2.23"
(-56.64mm)
37th Driest
Driest since:
2002
89th Wettest
Wettest since:
1997
Oct 1912–Sep 1916
48-Month
60.00"
(1,524.00mm)
63.72"
(1,618.49mm)
-3.72"
(-94.49mm)
34th Driest
Driest since:
2003
91st Wettest
Wettest since:
1998
Oct 1911–Sep 1916
60-Month
79.15"
(2,010.41mm)
79.56"
(2,020.82mm)
-0.41"
(-10.41mm)
63rd Driest
Driest since:
2004
61st Wettest
Wettest since:
1999

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