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 1976

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 1976
1-Month
1.06"
(26.92mm)
1.24"
(31.50mm)
-0.18"
(-4.58mm)
62nd Driest
Driest since:
1979
67th Wettest
Wettest since:
1923
Aug–Sep 1976
2-Month
2.27"
(57.66mm)
2.31"
(58.67mm)
-0.04"
(-1.01mm)
66th Driest
Driest since:
2012
63rd Wettest
Wettest since:
1923
Ties: 2008
Jul–Sep 1976
3-Month
3.32"
(84.33mm)
3.59"
(91.19mm)
-0.27"
(-6.86mm)
61st Driest
Driest since:
1964
68th Wettest
Wettest since:
1923
Ties: 1922, 1991
Jun–Sep 1976
4-Month
5.74"
(145.80mm)
5.43"
(137.92mm)
0.31"
(7.88mm)
85th Driest
Driest since:
2012
44th Wettest
Wettest since:
1923
Ties: 1961
May–Sep 1976
5-Month
7.71"
(195.83mm)
7.64"
(194.06mm)
0.07"
(1.77mm)
70th Driest
Driest since:
1919
59th Wettest
Wettest since:
1915
Ties: 1977
Apr–Sep 1976
6-Month
9.95"
(252.73mm)
9.42"
(239.27mm)
0.53"
(13.46mm)
84th Driest
Driest since:
2012
45th Wettest
Wettest since:
1941
Mar–Sep 1976
7-Month
10.97"
(278.64mm)
10.67"
(271.02mm)
0.30"
(7.62mm)
78th Driest
Driest since:
2012
51st Wettest
Wettest since:
1941
Feb–Sep 1976
8-Month
12.14"
(308.36mm)
11.63"
(295.40mm)
0.51"
(12.96mm)
79th Driest
Driest since:
2012
50th Wettest
Wettest since:
1945
Jan–Sep 1976
9-Month
13.07"
(331.98mm)
12.70"
(322.58mm)
0.37"
(9.40mm)
75th Driest
Driest since:
1919
54th Wettest
Wettest since:
1915, 1945
Dec 1975–Sep 1976
10-Month
14.30"
(363.22mm)
13.71"
(348.23mm)
0.59"
(14.99mm)
77th Driest
Driest since:
1919
51st Wettest
Wettest since:
1923
Nov 1975–Sep 1976
11-Month
15.38"
(390.65mm)
14.74"
(374.40mm)
0.64"
(16.25mm)
77th Driest
Driest since:
1919
51st Wettest
Wettest since:
1923
Ties: 1950
Oct 1975–Sep 1976
12-Month
17.08"
(433.83mm)
15.94"
(404.88mm)
1.14"
(28.95mm)
84th Driest
Driest since:
1919
44th Wettest
Wettest since:
1995
Apr 1975–Sep 1976
18-Month
26.25"
(666.75mm)
25.35"
(643.89mm)
0.90"
(22.86mm)
79th Driest
Driest since:
2021
49th Wettest
Wettest since:
1945
Oct 1974–Sep 1976
24-Month
33.12"
(841.25mm)
31.88"
(809.75mm)
1.24"
(31.50mm)
77th Driest
Driest since:
2002
50th Wettest
Wettest since:
1998
Oct 1973–Sep 1976
36-Month
46.87"
(1,190.50mm)
47.81"
(1,214.37mm)
-0.94"
(-23.87mm)
53rd Driest
Driest since:
2002
73rd Wettest
Wettest since:
1997
Oct 1972–Sep 1976
48-Month
65.36"
(1,660.14mm)
63.72"
(1,618.49mm)
1.64"
(41.65mm)
81st Driest
Driest since:
2003
44th Wettest
Wettest since:
1998
Ties: 1951
Oct 1971–Sep 1976
60-Month
82.85"
(2,104.39mm)
79.56"
(2,020.82mm)
3.29"
(83.57mm)
88th Driest
Driest since:
2004
36th Wettest
Wettest since:
1999

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