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 1984

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 1984
1-Month
1.55"
(39.37mm)
1.24"
(31.50mm)
0.31"
(7.87mm)
95th Driest
Driest since:
1979
34th Wettest
Wettest since:
1923
Aug–Sep 1984
2-Month
2.76"
(70.10mm)
2.31"
(58.67mm)
0.45"
(11.43mm)
94th Driest
Driest since:
2012
35th Wettest
Wettest since:
1923
Jul–Sep 1984
3-Month
4.63"
(117.60mm)
3.59"
(91.19mm)
1.04"
(26.41mm)
110th Driest
Driest since:
1964
19th Wettest
Wettest since:
1923
Jun–Sep 1984
4-Month
6.53"
(165.86mm)
5.43"
(137.92mm)
1.10"
(27.94mm)
108th Driest
Driest since:
2012
21st Wettest
Wettest since:
1923
May–Sep 1984
5-Month
7.92"
(201.17mm)
7.64"
(194.06mm)
0.28"
(7.11mm)
78th Driest
Driest since:
1919
51st Wettest
Wettest since:
1915
Apr–Sep 1984
6-Month
10.39"
(263.91mm)
9.42"
(239.27mm)
0.97"
(24.64mm)
95th Driest
Driest since:
2012
34th Wettest
Wettest since:
1941
Mar–Sep 1984
7-Month
11.61"
(294.89mm)
10.67"
(271.02mm)
0.94"
(23.87mm)
87th Driest
Driest since:
2012
42nd Wettest
Wettest since:
1941
Feb–Sep 1984
8-Month
12.27"
(311.66mm)
11.63"
(295.40mm)
0.64"
(16.26mm)
80th Driest
Driest since:
2012
49th Wettest
Wettest since:
1945
Jan–Sep 1984
9-Month
12.89"
(327.41mm)
12.70"
(322.58mm)
0.19"
(4.83mm)
70th Driest
Driest since:
1919
59th Wettest
Wettest since:
1915, 1945
Dec 1983–Sep 1984
10-Month
14.48"
(367.79mm)
13.71"
(348.23mm)
0.77"
(19.56mm)
80th Driest
Driest since:
1919
48th Wettest
Wettest since:
1923
Nov 1983–Sep 1984
11-Month
16.80"
(426.72mm)
14.74"
(374.40mm)
2.06"
(52.32mm)
107th Driest
Driest since:
1919
21st Wettest
Wettest since:
1923
Ties: 1947
Oct 1983–Sep 1984
12-Month
18.27"
(464.06mm)
15.94"
(404.88mm)
2.33"
(59.18mm)
105th Driest
Driest since:
1919
23rd Wettest
Wettest since:
1995
Apr 1983–Sep 1984
18-Month
28.43"
(722.12mm)
25.35"
(643.89mm)
3.08"
(78.23mm)
106th Driest
Driest since:
2021
22nd Wettest
Wettest since:
1945
Oct 1982–Sep 1984
24-Month
35.41"
(899.41mm)
31.88"
(809.75mm)
3.53"
(89.66mm)
109th Driest
Driest since:
2002
18th Wettest
Wettest since:
1998
Oct 1981–Sep 1984
36-Month
55.05"
(1,398.27mm)
47.81"
(1,214.37mm)
7.24"
(183.90mm)
121st Driest
Driest since:
2002
5th Wettest
Wettest since:
1997
Oct 1980–Sep 1984
48-Month
69.88"
(1,774.95mm)
63.72"
(1,618.49mm)
6.16"
(156.46mm)
110th Driest
Driest since:
2003
15th Wettest
Wettest since:
1998
Oct 1979–Sep 1984
60-Month
85.59"
(2,173.99mm)
79.56"
(2,020.82mm)
6.03"
(153.17mm)
105th Driest
Driest since:
2004
19th Wettest
Wettest since:
1999

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