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 1959

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 1959
1-Month
1.89"
(48.01mm)
1.24"
(31.50mm)
0.65"
(16.51mm)
109th Driest
Driest since:
1979
20th Wettest
Wettest since:
1923
Aug–Sep 1959
2-Month
2.63"
(66.80mm)
2.31"
(58.67mm)
0.32"
(8.13mm)
88th Driest
Driest since:
2012
41st Wettest
Wettest since:
1923
Ties: 1951
Jul–Sep 1959
3-Month
3.07"
(77.98mm)
3.59"
(91.19mm)
-0.52"
(-13.21mm)
51st Driest
Driest since:
1964
78th Wettest
Wettest since:
1923
Jun–Sep 1959
4-Month
5.03"
(127.76mm)
5.43"
(137.92mm)
-0.40"
(-10.16mm)
60th Driest
Driest since:
2012
69th Wettest
Wettest since:
1923
May–Sep 1959
5-Month
7.35"
(186.69mm)
7.64"
(194.06mm)
-0.29"
(-7.37mm)
60th Driest
Driest since:
1919
69th Wettest
Wettest since:
1915
Ties: 1901
Apr–Sep 1959
6-Month
8.48"
(215.39mm)
9.42"
(239.27mm)
-0.94"
(-23.88mm)
42nd Driest
Driest since:
2012
87th Wettest
Wettest since:
1941
Mar–Sep 1959
7-Month
9.67"
(245.62mm)
10.67"
(271.02mm)
-1.00"
(-25.40mm)
36th Driest
Driest since:
2012
93rd Wettest
Wettest since:
1941
Feb–Sep 1959
8-Month
10.92"
(277.37mm)
11.63"
(295.40mm)
-0.71"
(-18.03mm)
44th Driest
Driest since:
2012
85th Wettest
Wettest since:
1945
Jan–Sep 1959
9-Month
11.73"
(297.94mm)
12.70"
(322.58mm)
-0.97"
(-24.64mm)
40th Driest
Driest since:
1919
89th Wettest
Wettest since:
1915, 1945
Dec 1958–Sep 1959
10-Month
12.86"
(326.64mm)
13.71"
(348.23mm)
-0.85"
(-21.59mm)
44th Driest
Driest since:
1919
84th Wettest
Wettest since:
1923
Nov 1958–Sep 1959
11-Month
14.36"
(364.74mm)
14.74"
(374.40mm)
-0.38"
(-9.66mm)
57th Driest
Driest since:
1919
71st Wettest
Wettest since:
1923
Ties: 1898
Oct 1958–Sep 1959
12-Month
14.60"
(370.84mm)
15.94"
(404.88mm)
-1.34"
(-34.04mm)
37th Driest
Driest since:
1919
91st Wettest
Wettest since:
1995
Apr 1958–Sep 1959
18-Month
23.30"
(591.82mm)
25.35"
(643.89mm)
-2.05"
(-52.07mm)
38th Driest
Driest since:
2021
90th Wettest
Wettest since:
1945
Oct 1957–Sep 1959
24-Month
29.49"
(749.05mm)
31.88"
(809.75mm)
-2.39"
(-60.70mm)
34th Driest
Driest since:
2002
93rd Wettest
Wettest since:
1998
Oct 1956–Sep 1959
36-Month
47.92"
(1,217.17mm)
47.81"
(1,214.37mm)
0.11"
(2.80mm)
69th Driest
Driest since:
2002
57th Wettest
Wettest since:
1997
Ties: 1926
Oct 1955–Sep 1959
48-Month
61.93"
(1,573.02mm)
63.72"
(1,618.49mm)
-1.79"
(-45.47mm)
51st Driest
Driest since:
2003
74th Wettest
Wettest since:
1998
Oct 1954–Sep 1959
60-Month
75.80"
(1,925.32mm)
79.56"
(2,020.82mm)
-3.76"
(-95.50mm)
37th Driest
Driest since:
2004
87th Wettest
Wettest since:
1999

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