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 1909

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  • Record Wettest
PeriodValue1901-2000
Mean		AnomalyRank
(1895-2022)		Wettest/Driest
Since		Record
December 1909
1-Month		1.57"
(39.88mm)		1.01"
(25.65mm)		0.56"
(14.23mm)		120th Driest
Driest since:
1986
9th Wettest
Wettest to Date
1964, 1996
Nov–Dec 1909
2-Month		3.22"
(81.79mm)		2.05"
(52.07mm)		1.17"
(29.72mm)		122nd Driest
Driest since:
1914
7th Wettest
Wettest to Date
1983
Oct–Dec 1909
3-Month		3.67"
(93.22mm)		3.24"
(82.30mm)		0.43"
(10.92mm)		87th Driest
Driest since:
1976
42nd Wettest
Wettest since:
1942
Sep–Dec 1909
4-Month		5.33"
(135.38mm)		4.48"
(113.79mm)		0.85"
(21.59mm)		103rd Driest
Driest since:
1952
26th Wettest
Wettest to Date
2013
Aug–Dec 1909
5-Month		6.56"
(166.62mm)		5.55"
(140.97mm)		1.01"
(25.65mm)		106th Driest
Driest since:
1904
23rd Wettest
Wettest since:
1923
Ties: 1994
Jul–Dec 1909
6-Month		7.89"
(200.41mm)		6.83"
(173.48mm)		1.06"
(26.93mm)		104th Driest
Driest since:
1939
25th Wettest
Wettest to Date
1923
Jun–Dec 1909
7-Month		9.92"
(251.97mm)		8.67"
(220.22mm)		1.25"
(31.75mm)		103rd Driest
Driest since:
1935
26th Wettest
Wettest to Date
1923
May–Dec 1909
8-Month		12.40"
(314.96mm)		10.88"
(276.35mm)		1.52"
(38.61mm)		98th Driest
Driest since:
1900
31st Wettest
Wettest since:
1923
Apr–Dec 1909
9-Month		13.39"
(340.11mm)		12.66"
(321.56mm)		0.73"
(18.55mm)		82nd Driest
Driest since:
1954
47th Wettest
Wettest since:
1941
Mar–Dec 1909
10-Month		14.15"
(359.41mm)		13.91"
(353.31mm)		0.24"
(6.10mm)		73rd Driest
Driest since:
2012
56th Wettest
Wettest since:
1941
Feb–Dec 1909
11-Month		15.38"
(390.65mm)		14.88"
(377.95mm)		0.50"
(12.70mm)		78th Driest
Driest since:
2012
51st Wettest
Wettest since:
1941
Jan–Dec 1909
12-Month		17.55"
(445.77mm)		15.94"
(404.88mm)		1.61"
(40.89mm)		98th Driest
Driest since:
2012
31st Wettest
Wettest since:
1927
Jul 1908–Dec 1909
18-Month		24.69"
(627.13mm)		22.77"
(578.36mm)		1.92"
(48.77mm)		97th Driest
Driest since:
1934
31st Wettest
Wettest since:
1927
Jan 1908–Dec 1909
24-Month		35.69"
(906.53mm)		31.87"
(809.50mm)		3.82"
(97.03mm)		113th Driest
Driest since:
2002
15th Wettest
Wettest since:
1983
Ties: 1923
Jan 1907–Dec 1909
36-Month		51.99"
(1,320.55mm)		47.82"
(1,214.63mm)		4.17"
(105.92mm)		103rd Driest
Driest since:
2002
24th Wettest
Wettest since:
1947
Jan 1906–Dec 1909
48-Month		71.04"
(1,804.42mm)		63.72"
(1,618.49mm)		7.32"
(185.93mm)		122nd Driest
Driest since:
2003
4th Wettest
Wettest to Date
1998
Jan 1905–Dec 1909
60-Month		88.14"
(2,238.76mm)		79.58"
(2,021.33mm)		8.56"
(217.43mm)		116th Driest
Driest since:
1935
9th Wettest
Wettest to Date
1999

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