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 2021

View Period (Months):
Download: CSV JSON XML
  • Record Driest
  • Bottom ⅒
  • Bottom ⅓
  • Normal
  • Top ⅓
  • Top ⅒
  • Record Wettest
Period Value 1901-2000
Mean		 Anomaly Rank
(1895-2022)		 Wettest/Driest
Since		 Record
December 2021
1-Month 		1.30"
(33.02mm)		 1.01"
(25.65mm)		 0.29"
(7.37mm)		 100th Driest
Driest since:
 1986
29th Wettest
Wettest since:
 1964, 1996
Ties: 1922
Nov–Dec 2021
2-Month 		1.84"
(46.74mm)		 2.05"
(52.07mm)		 -0.21"
(-5.33mm)		 49th Driest
Driest since:
 1914
80th Wettest
Wettest since:
 1983
Ties: 1913, 1966, 1984
Oct–Dec 2021
3-Month 		3.93"
(99.82mm)		 3.24"
(82.30mm)		 0.69"
(17.52mm)		 107th Driest
Driest since:
 1976
22nd Wettest
Wettest since:
 1942
Ties: 1949
Sep–Dec 2021
4-Month 		4.78"
(121.41mm)		 4.48"
(113.79mm)		 0.30"
(7.62mm)		 85th Driest
Driest since:
 1952
44th Wettest
Wettest since:
 2013
Ties: 2006
Aug–Dec 2021
5-Month 		6.25"
(158.75mm)		 5.55"
(140.97mm)		 0.70"
(17.78mm)		 92nd Driest
Driest since:
 1904
37th Wettest
Wettest since:
 1923
Jul–Dec 2021
6-Month 		7.35"
(186.69mm)		 6.83"
(173.48mm)		 0.52"
(13.21mm)		 85th Driest
Driest since:
 1939
44th Wettest
Wettest since:
 1923
Ties: 1924
Jun–Dec 2021
7-Month 		8.17"
(207.52mm)		 8.67"
(220.22mm)		 -0.50"
(-12.70mm)		 51st Driest
Driest since:
 1935
78th Wettest
Wettest since:
 1923
Ties: 1905
May–Dec 2021
8-Month 		9.90"
(251.46mm)		 10.88"
(276.35mm)		 -0.98"
(-24.89mm)		 44th Driest
Driest since:
 1900
85th Wettest
Wettest since:
 1923
Apr–Dec 2021
9-Month 		11.11"
(282.19mm)		 12.66"
(321.56mm)		 -1.55"
(-39.37mm)		 35th Driest
Driest since:
 1954
94th Wettest
Wettest since:
 1941
Ties: 1969
Mar–Dec 2021
10-Month 		12.41"
(315.21mm)		 13.91"
(353.31mm)		 -1.50"
(-38.10mm)		 34th Driest
Driest since:
 2012
95th Wettest
Wettest since:
 1941
Ties: 1935
Feb–Dec 2021
11-Month 		13.69"
(347.73mm)		 14.88"
(377.95mm)		 -1.19"
(-30.22mm)		 38th Driest
Driest since:
 2012
91st Wettest
Wettest since:
 1941
Jan–Dec 2021
12-Month 		14.37"
(365.00mm)		 15.94"
(404.88mm)		 -1.57"
(-39.88mm)		 35th Driest
Driest since:
 2012
94th Wettest
Wettest since:
 1927
Jul 2020–Dec 2021
18-Month 		18.59"
(472.19mm)		 22.77"
(578.36mm)		 -4.18"
(-106.17mm)		 10th Driest
Driest since:
 1934
118th Wettest
Wettest since:
 1927
Jan 2020–Dec 2021
24-Month 		26.09"
(662.69mm)		 31.87"
(809.50mm)		 -5.78"
(-146.81mm)		 7th Driest
Driest since:
 2002
121st Wettest
Wettest since:
 1983
Jan 2019–Dec 2021
36-Month 		44.43"
(1,128.52mm)		 47.82"
(1,214.63mm)		 -3.39"
(-86.11mm)		 30th Driest
Driest since:
 2002
97th Wettest
Wettest since:
 1947
Jan 2018–Dec 2021
48-Month 		60.55"
(1,537.97mm)		 63.72"
(1,618.49mm)		 -3.17"
(-80.52mm)		 40th Driest
Driest since:
 2003
86th Wettest
Wettest since:
 1998
Jan 2017–Dec 2021
60-Month 		79.21"
(2,011.93mm)		 79.58"
(2,021.33mm)		 -0.37"
(-9.40mm)		 62nd Driest
Driest since:
 1935
63rd Wettest
Wettest since:
 1999

Citing This Page