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, August 1991

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
August 1991
1-Month
1.00"
(25.40mm)
1.07"
(27.18mm)
-0.07"
(-1.78mm)
68th Driest
Driest since:
1944
61st Wettest
Wettest since:
1930
Ties: 1916, 1960, 1989
Jul–Aug 1991
2-Month
2.00"
(50.80mm)
2.35"
(59.69mm)
-0.35"
(-8.89mm)
50th Driest
Driest since:
2020
79th Wettest
Wettest since:
1930
Jun–Aug 1991
3-Month
4.24"
(107.70mm)
4.19"
(106.43mm)
0.05"
(1.27mm)
77th Driest
Driest since:
1924
52nd Wettest
Wettest since:
1945
May–Aug 1991
4-Month
7.94"
(201.68mm)
6.40"
(162.56mm)
1.54"
(39.12mm)
108th Driest
Driest since:
1919
21st Wettest
Wettest since:
1908
Apr–Aug 1991
5-Month
10.25"
(260.35mm)
8.18"
(207.77mm)
2.07"
(52.58mm)
115th Driest
Driest since:
1924
14th Wettest
Wettest since:
1941
Mar–Aug 1991
6-Month
11.55"
(293.37mm)
9.43"
(239.52mm)
2.12"
(53.85mm)
115th Driest
Driest since:
1919
14th Wettest
Wettest since:
1941
Feb–Aug 1991
7-Month
12.09"
(307.09mm)
10.39"
(263.91mm)
1.70"
(43.18mm)
107th Driest
Driest since:
1919
22nd Wettest
Wettest since:
1941
Ties: 1912
Jan–Aug 1991
8-Month
12.69"
(322.33mm)
11.46"
(291.08mm)
1.23"
(31.25mm)
98th Driest
Driest since:
1919
31st Wettest
Wettest since:
1899
Dec 1990–Aug 1991
9-Month
13.51"
(343.15mm)
12.47"
(316.74mm)
1.04"
(26.41mm)
89th Driest
Driest since:
1919
39th Wettest
Wettest since:
1993
Nov 1990–Aug 1991
10-Month
14.74"
(374.40mm)
13.50"
(342.90mm)
1.24"
(31.50mm)
89th Driest
Driest since:
1919
39th Wettest
Wettest since:
1945
Oct 1990–Aug 1991
11-Month
15.88"
(403.35mm)
14.70"
(373.38mm)
1.18"
(29.97mm)
84th Driest
Driest since:
1919
44th Wettest
Wettest since:
1995
Sep 1990–Aug 1991
12-Month
16.93"
(430.02mm)
15.93"
(404.62mm)
1.00"
(25.40mm)
85th Driest
Driest since:
1934
43rd Wettest
Wettest since:
1995
Mar 1990–Aug 1991
18-Month
26.40"
(670.56mm)
25.36"
(644.14mm)
1.04"
(26.42mm)
80th Driest
Driest since:
2013
48th Wettest
Wettest since:
1945
Ties: 1913
Sep 1989–Aug 1991
24-Month
32.66"
(829.56mm)
31.86"
(809.24mm)
0.80"
(20.32mm)
73rd Driest
Driest since:
2002
54th Wettest
Wettest since:
2015
Sep 1988–Aug 1991
36-Month
46.56"
(1,182.62mm)
47.78"
(1,213.61mm)
-1.22"
(-30.99mm)
49th Driest
Driest since:
2002
77th Wettest
Wettest since:
1997
Sep 1987–Aug 1991
48-Month
57.90"
(1,470.66mm)
63.68"
(1,617.47mm)
-5.78"
(-146.81mm)
17th Driest
Driest since:
2003
108th Wettest
Wettest since:
1998
Sep 1986–Aug 1991
60-Month
74.91"
(1,902.71mm)
79.53"
(2,020.06mm)
-4.62"
(-117.35mm)
32nd Driest
Driest since:
2004
92nd Wettest
Wettest since:
1999

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