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, December 1964

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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
December 1964
1-Month 		2.29"
(58.17mm)		 1.01"
(25.65mm)		 1.28"
(32.52mm)		 128th Driest
Driest since:
 1986
1st Wettest
Wettest to Date
 1964, 1996
Ties: 1996
Nov–Dec 1964
2-Month 		3.44"
(87.38mm)		 2.05"
(52.07mm)		 1.39"
(35.31mm)		 124th Driest
Driest since:
 1914
5th Wettest
Wettest since:
 1983
Oct–Dec 1964
3-Month 		3.88"
(98.55mm)		 3.24"
(82.30mm)		 0.64"
(16.25mm)		 100th Driest
Driest since:
 1976
29th Wettest
Wettest since:
 1942
Ties: 2005
Sep–Dec 1964
4-Month 		4.16"
(105.66mm)		 4.48"
(113.79mm)		 -0.32"
(-8.13mm)		 51st Driest
Driest since:
 1952
78th Wettest
Wettest since:
 2013
Aug–Dec 1964
5-Month 		5.00"
(127.00mm)		 5.55"
(140.97mm)		 -0.55"
(-13.97mm)		 42nd Driest
Driest since:
 1904
87th Wettest
Wettest since:
 1923
Jul–Dec 1964
6-Month 		5.53"
(140.46mm)		 6.83"
(173.48mm)		 -1.30"
(-33.02mm)		 25th Driest
Driest since:
 1939
104th Wettest
Wettest since:
 1923
Jun–Dec 1964
7-Month 		8.87"
(225.30mm)		 8.67"
(220.22mm)		 0.20"
(5.08mm)		 78th Driest
Driest since:
 1935
51st Wettest
Wettest since:
 1923
May–Dec 1964
8-Month 		11.19"
(284.23mm)		 10.88"
(276.35mm)		 0.31"
(7.88mm)		 74th Driest
Driest since:
 1900
55th Wettest
Wettest since:
 1923
Apr–Dec 1964
9-Month 		13.67"
(347.22mm)		 12.66"
(321.56mm)		 1.01"
(25.66mm)		 90th Driest
Driest since:
 1954
39th Wettest
Wettest since:
 1941
Mar–Dec 1964
10-Month 		14.77"
(375.16mm)		 13.91"
(353.31mm)		 0.86"
(21.85mm)		 84th Driest
Driest since:
 2012
45th Wettest
Wettest since:
 1941
Ties: 2005
Feb–Dec 1964
11-Month 		15.64"
(397.26mm)		 14.88"
(377.95mm)		 0.76"
(19.31mm)		 85th Driest
Driest since:
 2012
44th Wettest
Wettest since:
 1941
Jan–Dec 1964
12-Month 		16.66"
(423.16mm)		 15.94"
(404.88mm)		 0.72"
(18.28mm)		 79th Driest
Driest since:
 2012
50th Wettest
Wettest since:
 1927
Jul 1963–Dec 1964
18-Month 		22.70"
(576.58mm)		 22.77"
(578.36mm)		 -0.07"
(-1.78mm)		 63rd Driest
Driest since:
 1934
65th Wettest
Wettest since:
 1927
Jan 1963–Dec 1964
24-Month 		33.13"
(841.50mm)		 31.86"
(809.24mm)		 1.27"
(32.26mm)		 83rd Driest
Driest since:
 2002
45th Wettest
Wettest since:
 1983
Jan 1962–Dec 1964
36-Month 		49.27"
(1,251.46mm)		 47.82"
(1,214.63mm)		 1.45"
(36.83mm)		 84th Driest
Driest since:
 2002
43rd Wettest
Wettest since:
 1947
Jan 1961–Dec 1964
48-Month 		63.94"
(1,624.08mm)		 63.72"
(1,618.49mm)		 0.22"
(5.59mm)		 68th Driest
Driest since:
 2003
58th Wettest
Wettest since:
 1998
Jan 1960–Dec 1964
60-Month 		75.96"
(1,929.38mm)		 79.58"
(2,021.33mm)		 -3.62"
(-91.95mm)		 40th Driest
Driest since:
 1935
85th Wettest
Wettest since:
 1999

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