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 1899

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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Wettest/Driest
Since
Record
October 1899
1-Month
1.64"
(41.66mm)
1.20"
(30.48mm)
0.44"
(11.18mm)
99th Driest
Driest since:
1933
30th Wettest
Wettest to Date
1994
Sep–Oct 1899
2-Month
2.11"
(53.59mm)
2.44"
(61.98mm)
-0.33"
(-8.39mm)
47th Driest
Driest since:
1952
82nd Wettest
Wettest since:
2013
Ties: 1909, 1969
Aug–Oct 1899
3-Month
2.95"
(74.93mm)
3.51"
(89.15mm)
-0.56"
(-14.22mm)
44th Driest
Driest since:
1958
85th Wettest
Wettest since:
1923
Ties: 1970
Jul–Oct 1899
4-Month
4.16"
(105.66mm)
4.79"
(121.67mm)
-0.63"
(-16.01mm)
46th Driest
Driest since:
1964
83rd Wettest
Wettest since:
1923
Ties: 2011
Jun–Oct 1899
5-Month
6.50"
(165.10mm)
6.62"
(168.15mm)
-0.12"
(-3.05mm)
76th Driest
Driest since:
1988
53rd Wettest
Wettest to Date
1923
Ties: 1962
May–Oct 1899
6-Month
8.60"
(218.44mm)
8.84"
(224.54mm)
-0.24"
(-6.10mm)
63rd Driest
Driest since:
2012
66th Wettest
Wettest since:
1923
Apr–Oct 1899
7-Month
9.66"
(245.36mm)
10.61"
(269.49mm)
-0.95"
(-24.13mm)
46th Driest
Driest since:
2012
83rd Wettest
Wettest since:
1941
Mar–Oct 1899
8-Month
12.54"
(318.52mm)
11.86"
(301.24mm)
0.68"
(17.28mm)
85th Driest
Driest since:
2012
44th Wettest
Wettest since:
1941
Feb–Oct 1899
9-Month
14.83"
(376.68mm)
12.83"
(325.88mm)
2.00"
(50.80mm)
106th Driest
Driest since:
2012
23rd Wettest
Wettest to Date
1941
Jan–Oct 1899
10-Month
16.86"
(428.24mm)
13.89"
(352.81mm)
2.97"
(75.43mm)
117th Driest
Driest since:
2012
12th Wettest
Wettest to Date
1923
Dec 1898–Oct 1899
11-Month
17.47"
(443.74mm)
14.90"
(378.46mm)
2.57"
(65.28mm)
111th Driest
Driest since:
2012
17th Wettest
Wettest to Date
1923
Nov 1898–Oct 1899
12-Month
18.41"
(467.61mm)
15.94"
(404.88mm)
2.47"
(62.73mm)
108th Driest
Driest since:
1960
20th Wettest
Wettest to Date
1923
May 1898–Oct 1899
18-Month
27.13"
(689.10mm)
24.75"
(628.65mm)
2.38"
(60.45mm)
100th Driest
Driest since:
1934
28th Wettest
Wettest to Date
1927
Nov 1897–Oct 1899
24-Month
33.94"
(862.08mm)
31.86"
(809.24mm)
2.08"
(52.84mm)
92nd Driest
Driest since:
2002
35th Wettest
Wettest to Date
1998
Nov 1896–Oct 1899
36-Month
47.84"
(1,215.14mm)
47.81"
(1,214.37mm)
0.03"
(0.77mm)
69th Driest
Driest since:
2002
57th Wettest
Wettest to Date
1947
Nov 1895–Oct 1899
48-Month
65.28"
(1,658.11mm)
63.72"
(1,618.49mm)
1.56"
(39.62mm)
79th Driest
Driest since:
2003
46th Wettest
Wettest to Date
1998

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