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 1964

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Period Value 1901-2000
Mean		 Anomaly Rank
(1895-2022)		 Wettest/Driest
Since		 Record
October 1964
1-Month 		0.44"
(11.18mm)		 1.20"
(30.48mm)		 -0.76"
(-19.30mm)		 10th Driest
Driest since:
 1933
119th Wettest
Wettest since:
 1994
Sep–Oct 1964
2-Month 		0.72"
(18.29mm)		 2.44"
(61.98mm)		 -1.72"
(-43.69mm)		 2nd Driest
Driest since:
 1952
127th Wettest
Wettest since:
 2013
Aug–Oct 1964
3-Month 		1.56"
(39.62mm)		 3.51"
(89.15mm)		 -1.95"
(-49.53mm)		 2nd Driest
Driest since:
 1958
127th Wettest
Wettest since:
 1923
Jul–Oct 1964
4-Month 		2.09"
(53.09mm)		 4.79"
(121.67mm)		 -2.70"
(-68.58mm)		 1st Driest
Driest to Date
 1964
128th Wettest
Wettest since:
 1923
Jun–Oct 1964
5-Month 		5.43"
(137.92mm)		 6.62"
(168.15mm)		 -1.19"
(-30.23mm)		 30th Driest
Driest since:
 1988
99th Wettest
Wettest since:
 1923
Ties: 1920
May–Oct 1964
6-Month 		7.75"
(196.85mm)		 8.84"
(224.54mm)		 -1.09"
(-27.69mm)		 43rd Driest
Driest since:
 2012
86th Wettest
Wettest since:
 1923
Apr–Oct 1964
7-Month 		10.23"
(259.84mm)		 10.61"
(269.49mm)		 -0.38"
(-9.65mm)		 62nd Driest
Driest since:
 2012
67th Wettest
Wettest since:
 1941
Mar–Oct 1964
8-Month 		11.33"
(287.78mm)		 11.86"
(301.24mm)		 -0.53"
(-13.46mm)		 53rd Driest
Driest since:
 2012
76th Wettest
Wettest since:
 1941
Feb–Oct 1964
9-Month 		12.20"
(309.88mm)		 12.83"
(325.88mm)		 -0.63"
(-16.00mm)		 53rd Driest
Driest since:
 2012
76th Wettest
Wettest since:
 1941
Jan–Oct 1964
10-Month 		13.22"
(335.79mm)		 13.89"
(352.81mm)		 -0.67"
(-17.02mm)		 50th Driest
Driest since:
 2012
79th Wettest
Wettest since:
 1923
Ties: 2007
Dec 1963–Oct 1964
11-Month 		13.92"
(353.57mm)		 14.90"
(378.46mm)		 -0.98"
(-24.89mm)		 45th Driest
Driest since:
 2012
83rd Wettest
Wettest since:
 1923
Nov 1963–Oct 1964
12-Month 		14.64"
(371.86mm)		 15.94"
(404.88mm)		 -1.30"
(-33.02mm)		 41st Driest
Driest since:
 1960
87th Wettest
Wettest since:
 1923
May 1963–Oct 1964
18-Month 		23.53"
(597.66mm)		 24.75"
(628.65mm)		 -1.22"
(-30.99mm)		 49th Driest
Driest since:
 1934
79th Wettest
Wettest since:
 1927
Nov 1962–Oct 1964
24-Month 		30.79"
(782.07mm)		 31.86"
(809.24mm)		 -1.07"
(-27.17mm)		 49th Driest
Driest since:
 2002
78th Wettest
Wettest since:
 1998
Ties: 2008
Nov 1961–Oct 1964
36-Month 		47.75"
(1,212.85mm)		 47.81"
(1,214.37mm)		 -0.06"
(-1.52mm)		 68th Driest
Driest since:
 2002
58th Wettest
Wettest since:
 1947
Nov 1960–Oct 1964
48-Month 		62.67"
(1,591.82mm)		 63.72"
(1,618.49mm)		 -1.05"
(-26.67mm)		 57th Driest
Driest since:
 2003
68th Wettest
Wettest since:
 1998
Nov 1959–Oct 1964
60-Month 		73.52"
(1,867.41mm)		 79.57"
(2,021.08mm)		 -6.05"
(-153.67mm)		 20th Driest
Driest since:
 1935
104th Wettest
Wettest since:
 1999

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