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 1900

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Period Value 1901-2000
Mean		 Anomaly Rank
(1895-2022)		 Wettest/Driest
Since		 Record
October 1900
1-Month 		1.05"
(26.67mm)		 1.20"
(30.48mm)		 -0.15"
(-3.81mm)		 51st Driest
Driest since:
 1933
78th Wettest
Wettest since:
 1994
Sep–Oct 1900
2-Month 		2.21"
(56.13mm)		 2.44"
(61.98mm)		 -0.23"
(-5.85mm)		 53rd Driest
Driest since:
 1952
76th Wettest
Wettest since:
 2013
Ties: 1896, 1928, 1980
Aug–Oct 1900
3-Month 		2.82"
(71.63mm)		 3.51"
(89.15mm)		 -0.69"
(-17.52mm)		 38th Driest
Driest since:
 1958
91st Wettest
Wettest since:
 1923
Jul–Oct 1900
4-Month 		3.81"
(96.77mm)		 4.79"
(121.67mm)		 -0.98"
(-24.90mm)		 31st Driest
Driest since:
 1964
98th Wettest
Wettest since:
 1923
Ties: 1934
Jun–Oct 1900
5-Month 		4.32"
(109.73mm)		 6.62"
(168.15mm)		 -2.30"
(-58.42mm)		 9th Driest
Driest to Date
 1988
120th Wettest
Wettest since:
 1923
May–Oct 1900
6-Month 		5.18"
(131.57mm)		 8.84"
(224.54mm)		 -3.66"
(-92.97mm)		 3rd Driest
Driest to Date
 2012
126th Wettest
Wettest since:
 1923
Apr–Oct 1900
7-Month 		9.28"
(235.71mm)		 10.61"
(269.49mm)		 -1.33"
(-33.78mm)		 36th Driest
Driest since:
 2012
93rd Wettest
Wettest since:
 1941
Mar–Oct 1900
8-Month 		10.06"
(255.52mm)		 11.86"
(301.24mm)		 -1.80"
(-45.72mm)		 29th Driest
Driest since:
 2012
100th Wettest
Wettest since:
 1941
Feb–Oct 1900
9-Month 		11.23"
(285.24mm)		 12.83"
(325.88mm)		 -1.60"
(-40.64mm)		 32nd Driest
Driest since:
 2012
97th Wettest
Wettest since:
 1941
Jan–Oct 1900
10-Month 		11.62"
(295.15mm)		 13.89"
(352.81mm)		 -2.27"
(-57.66mm)		 24th Driest
Driest since:
 2012
105th Wettest
Wettest since:
 1923
Dec 1899–Oct 1900
11-Month 		12.64"
(321.06mm)		 14.90"
(378.46mm)		 -2.26"
(-57.40mm)		 22nd Driest
Driest since:
 2012
106th Wettest
Wettest since:
 1923
Nov 1899–Oct 1900
12-Month 		13.17"
(334.52mm)		 15.94"
(404.88mm)		 -2.77"
(-70.36mm)		 15th Driest
Driest to Date
 1960
113th Wettest
Wettest since:
 1923
Ties: 1924
May 1899–Oct 1900
18-Month 		21.77"
(552.96mm)		 24.75"
(628.65mm)		 -2.98"
(-75.69mm)		 26th Driest
Driest since:
 1934
102nd Wettest
Wettest since:
 1927
Nov 1898–Oct 1900
24-Month 		31.58"
(802.13mm)		 31.86"
(809.24mm)		 -0.28"
(-7.11mm)		 59th Driest
Driest since:
 2002
68th Wettest
Wettest since:
 1998
Nov 1897–Oct 1900
36-Month 		47.11"
(1,196.59mm)		 47.81"
(1,214.37mm)		 -0.70"
(-17.78mm)		 59th Driest
Driest since:
 2002
67th Wettest
Wettest since:
 1947
Nov 1896–Oct 1900
48-Month 		61.01"
(1,549.65mm)		 63.72"
(1,618.49mm)		 -2.71"
(-68.84mm)		 41st Driest
Driest to Date
 2003
84th Wettest
Wettest since:
 1998
Nov 1895–Oct 1900
60-Month 		78.45"
(1,992.63mm)		 79.57"
(2,021.08mm)		 -1.12"
(-28.45mm)		 58th Driest
Driest to Date
 1935
66th Wettest
Wettest to Date
 1999

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