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, October 1987

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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Wettest/Driest
Since
Record
October 1987
1-Month
0.50"
(12.70mm)
1.20"
(30.48mm)
-0.70"
(-17.78mm)
14th Driest
Driest since:
1933
115th Wettest
Wettest since:
1994
Sep–Oct 1987
2-Month
1.13"
(28.70mm)
2.44"
(61.98mm)
-1.31"
(-33.28mm)
8th Driest
Driest since:
1952
121st Wettest
Wettest since:
2013
Aug–Oct 1987
3-Month
2.52"
(64.01mm)
3.51"
(89.15mm)
-0.99"
(-25.14mm)
18th Driest
Driest since:
1958
111th Wettest
Wettest since:
1923
Ties: 1969
Jul–Oct 1987
4-Month
4.49"
(114.05mm)
4.79"
(121.67mm)
-0.30"
(-7.62mm)
58th Driest
Driest since:
1964
71st Wettest
Wettest since:
1923
Ties: 2005
Jun–Oct 1987
5-Month
6.01"
(152.65mm)
6.62"
(168.15mm)
-0.61"
(-15.50mm)
54th Driest
Driest since:
1988
75th Wettest
Wettest since:
1923
May–Oct 1987
6-Month
8.87"
(225.30mm)
8.84"
(224.54mm)
0.03"
(0.76mm)
69th Driest
Driest since:
2012
60th Wettest
Wettest since:
1923
Apr–Oct 1987
7-Month
9.37"
(238.00mm)
10.61"
(269.49mm)
-1.24"
(-31.49mm)
39th Driest
Driest since:
2012
90th Wettest
Wettest since:
1941
Mar–Oct 1987
8-Month
10.64"
(270.26mm)
11.86"
(301.24mm)
-1.22"
(-30.98mm)
39th Driest
Driest since:
2012
90th Wettest
Wettest since:
1941
Feb–Oct 1987
9-Month
11.70"
(297.18mm)
12.83"
(325.88mm)
-1.13"
(-28.70mm)
37th Driest
Driest since:
2012
92nd Wettest
Wettest since:
1941
Jan–Oct 1987
10-Month
12.60"
(320.04mm)
13.89"
(352.81mm)
-1.29"
(-32.77mm)
38th Driest
Driest since:
2012
91st Wettest
Wettest since:
1923
Dec 1986–Oct 1987
11-Month
12.82"
(325.63mm)
14.90"
(378.46mm)
-2.08"
(-52.83mm)
26th Driest
Driest since:
2012
102nd Wettest
Wettest since:
1923
Nov 1986–Oct 1987
12-Month
14.23"
(361.44mm)
15.94"
(404.88mm)
-1.71"
(-43.44mm)
36th Driest
Driest since:
1960
92nd Wettest
Wettest since:
1923
May 1986–Oct 1987
18-Month
24.03"
(610.36mm)
24.75"
(628.65mm)
-0.72"
(-18.29mm)
53rd Driest
Driest since:
1934
75th Wettest
Wettest since:
1927
Nov 1985–Oct 1987
24-Month
33.38"
(847.85mm)
31.86"
(809.24mm)
1.52"
(38.61mm)
80th Driest
Driest since:
2002
47th Wettest
Wettest since:
1998
Nov 1984–Oct 1987
36-Month
46.57"
(1,182.88mm)
47.81"
(1,214.37mm)
-1.24"
(-31.49mm)
49th Driest
Driest since:
2002
77th Wettest
Wettest since:
1947
Nov 1983–Oct 1987
48-Month
64.27"
(1,632.46mm)
63.72"
(1,618.49mm)
0.55"
(13.97mm)
72nd Driest
Driest since:
2003
53rd Wettest
Wettest since:
1998
Nov 1982–Oct 1987
60-Month
81.50"
(2,070.10mm)
79.57"
(2,021.08mm)
1.93"
(49.02mm)
80th Driest
Driest since:
1935
44th Wettest
Wettest since:
1999

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