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 1900

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  • Record Wettest
Period Value 1901-2000
Mean		 Anomaly Rank
(1895-2022)		 Wettest/Driest
Since		 Record
December 1900
1-Month 		0.67"
(17.02mm)		 1.01"
(25.65mm)		 -0.34"
(-8.63mm)		 21st Driest
Driest since:
 1986
108th Wettest
Wettest since:
 1964, 1996
Ties: 1960
Nov–Dec 1900
2-Month 		1.57"
(39.88mm)		 2.05"
(52.07mm)		 -0.48"
(-12.19mm)		 29th Driest
Driest since:
 1914
100th Wettest
Wettest since:
 1983
Oct–Dec 1900
3-Month 		2.62"
(66.55mm)		 3.24"
(82.30mm)		 -0.62"
(-15.75mm)		 26th Driest
Driest since:
 1976
103rd Wettest
Wettest since:
 1942
Sep–Dec 1900
4-Month 		3.78"
(96.01mm)		 4.48"
(113.79mm)		 -0.70"
(-17.78mm)		 33rd Driest
Driest since:
 1952
96th Wettest
Wettest since:
 2013
Aug–Dec 1900
5-Month 		4.39"
(111.51mm)		 5.55"
(140.97mm)		 -1.16"
(-29.46mm)		 25th Driest
Driest since:
 1904
104th Wettest
Wettest since:
 1923
Jul–Dec 1900
6-Month 		5.38"
(136.65mm)		 6.83"
(173.48mm)		 -1.45"
(-36.83mm)		 23rd Driest
Driest since:
 1939
106th Wettest
Wettest since:
 1923
Jun–Dec 1900
7-Month 		5.89"
(149.61mm)		 8.67"
(220.22mm)		 -2.78"
(-70.61mm)		 10th Driest
Driest since:
 1935
119th Wettest
Wettest since:
 1923
Ties: 2020
May–Dec 1900
8-Month 		6.75"
(171.45mm)		 10.88"
(276.35mm)		 -4.13"
(-104.90mm)		 1st Driest
Driest since:
 1900
128th Wettest
Wettest since:
 1923
Apr–Dec 1900
9-Month 		10.85"
(275.59mm)		 12.66"
(321.56mm)		 -1.81"
(-45.97mm)		 31st Driest
Driest since:
 1954
98th Wettest
Wettest since:
 1941
Mar–Dec 1900
10-Month 		11.63"
(295.40mm)		 13.91"
(353.31mm)		 -2.28"
(-57.91mm)		 24th Driest
Driest since:
 2012
105th Wettest
Wettest since:
 1941
Feb–Dec 1900
11-Month 		12.80"
(325.12mm)		 14.88"
(377.95mm)		 -2.08"
(-52.83mm)		 26th Driest
Driest since:
 2012
103rd Wettest
Wettest since:
 1941
Jan–Dec 1900
12-Month 		13.19"
(335.03mm)		 15.94"
(404.88mm)		 -2.75"
(-69.85mm)		 20th Driest
Driest since:
 2012
109th Wettest
Wettest since:
 1927
Jul 1899–Dec 1900
18-Month 		18.90"
(480.06mm)		 22.77"
(578.36mm)		 -3.87"
(-98.30mm)		 12th Driest
Driest since:
 1934
116th Wettest
Wettest since:
 1927
Jan 1899–Dec 1900
24-Month 		31.60"
(802.64mm)		 31.86"
(809.24mm)		 -0.26"
(-6.60mm)		 61st Driest
Driest since:
 2002
67th Wettest
Wettest since:
 1983
Jan 1898–Dec 1900
36-Month 		45.86"
(1,164.84mm)		 47.82"
(1,214.63mm)		 -1.96"
(-49.79mm)		 41st Driest
Driest since:
 2002
86th Wettest
Wettest since:
 1947
Jan 1897–Dec 1900
48-Month 		60.04"
(1,525.02mm)		 63.72"
(1,618.49mm)		 -3.68"
(-93.47mm)		 37th Driest
Driest since:
 2003
89th Wettest
Wettest since:
 1998
Jan 1896–Dec 1900
60-Month 		77.40"
(1,965.96mm)		 79.58"
(2,021.33mm)		 -2.18"
(-55.37mm)		 48th Driest
Driest since:
 1935
77th Wettest
Wettest since:
 1999

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