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 1986

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  • Record Wettest
Period Value 1901-2000
Mean		 Anomaly Rank
(1895-2021)		 Wettest/Driest
Since		 Record
December 1986
1-Month 		0.22"
(5.59mm)		 1.01"
(25.65mm)		 -0.79"
(-20.06mm)		 1st Driest
Driest since:
 1986
127th Wettest
Wettest since:
 1964, 1996
Nov–Dec 1986
2-Month 		1.63"
(41.40mm)		 2.05"
(52.07mm)		 -0.42"
(-10.67mm)		 32nd Driest
Driest since:
 1914
96th Wettest
Wettest since:
 1983
Oct–Dec 1986
3-Month 		3.42"
(86.87mm)		 3.24"
(82.30mm)		 0.18"
(4.57mm)		 78th Driest
Driest since:
 1976
50th Wettest
Wettest since:
 1942
Sep–Dec 1986
4-Month 		5.54"
(140.72mm)		 4.48"
(113.79mm)		 1.06"
(26.93mm)		 107th Driest
Driest since:
 1952
21st Wettest
Wettest since:
 2013
Aug–Dec 1986
5-Month 		6.45"
(163.83mm)		 5.55"
(140.97mm)		 0.90"
(22.86mm)		 98th Driest
Driest since:
 1904
30th Wettest
Wettest since:
 1923
Jul–Dec 1986
6-Month 		7.74"
(196.60mm)		 6.83"
(173.48mm)		 0.91"
(23.12mm)		 99th Driest
Driest since:
 1939
29th Wettest
Wettest since:
 1923
Jun–Dec 1986
7-Month 		9.75"
(247.65mm)		 8.67"
(220.22mm)		 1.08"
(27.43mm)		 101st Driest
Driest since:
 1935
27th Wettest
Wettest since:
 1923
May–Dec 1986
8-Month 		11.43"
(290.32mm)		 10.88"
(276.35mm)		 0.55"
(13.97mm)		 78th Driest
Driest since:
 1900
50th Wettest
Wettest since:
 1923
Apr–Dec 1986
9-Month 		13.85"
(351.79mm)		 12.66"
(321.56mm)		 1.19"
(30.23mm)		 93rd Driest
Driest since:
 1954
35th Wettest
Wettest since:
 1941
Mar–Dec 1986
10-Month 		14.85"
(377.19mm)		 13.91"
(353.31mm)		 0.94"
(23.88mm)		 87th Driest
Driest since:
 2012
41st Wettest
Wettest since:
 1941
Feb–Dec 1986
11-Month 		17.14"
(435.36mm)		 14.88"
(377.95mm)		 2.26"
(57.41mm)		 104th Driest
Driest since:
 2012
24th Wettest
Wettest since:
 1941
Jan–Dec 1986
12-Month 		17.91"
(454.91mm)		 15.94"
(404.88mm)		 1.97"
(50.03mm)		 99th Driest
Driest since:
 2012
29th Wettest
Wettest since:
 1927
Jul 1985–Dec 1986
18-Month 		25.61"
(650.49mm)		 22.77"
(578.36mm)		 2.84"
(72.13mm)		 109th Driest
Driest since:
 1934
18th Wettest
Wettest since:
 1927
Ties: 1938
Jan 1985–Dec 1986
24-Month 		32.13"
(816.10mm)		 31.86"
(809.24mm)		 0.27"
(6.86mm)		 66th Driest
Driest since:
 2002
61st Wettest
Wettest since:
 1983
Jan 1984–Dec 1986
36-Month 		47.76"
(1,213.10mm)		 47.82"
(1,214.63mm)		 -0.06"
(-1.53mm)		 71st Driest
Driest since:
 2002
55th Wettest
Wettest since:
 1947
Jan 1983–Dec 1986
48-Month 		66.53"
(1,689.86mm)		 63.72"
(1,618.49mm)		 2.81"
(71.37mm)		 90th Driest
Driest since:
 2003
35th Wettest
Wettest since:
 1998
Jan 1982–Dec 1986
60-Month 		86.03"
(2,185.16mm)		 79.58"
(2,021.33mm)		 6.45"
(163.83mm)		 106th Driest
Driest since:
 1935
18th Wettest
Wettest since:
 1999

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