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 1966

View Period (Months):
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  • Record Driest
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2021)
Wettest/Driest
Since
Record
December 1966
1-Month
0.98"
(24.89mm)
1.01"
(25.65mm)
-0.03"
(-0.76mm)
64th Driest
Driest since:
1986
64th Wettest
Wettest since:
1964, 1996
Nov–Dec 1966
2-Month
1.84"
(46.74mm)
2.05"
(52.07mm)
-0.21"
(-5.33mm)
49th Driest
Driest since:
1914
79th Wettest
Wettest since:
1983
Ties: 1913, 1984, 2021
Oct–Dec 1966
3-Month
3.06"
(77.72mm)
3.24"
(82.30mm)
-0.18"
(-4.58mm)
50th Driest
Driest since:
1976
78th Wettest
Wettest since:
1942
Ties: 2003
Sep–Dec 1966
4-Month
4.70"
(119.38mm)
4.48"
(113.79mm)
0.22"
(5.59mm)
76th Driest
Driest since:
1952
52nd Wettest
Wettest since:
2013
Aug–Dec 1966
5-Month
5.86"
(148.84mm)
5.55"
(140.97mm)
0.31"
(7.87mm)
80th Driest
Driest since:
1904
48th Wettest
Wettest since:
1923
Ties: 2006
Jul–Dec 1966
6-Month
6.85"
(173.99mm)
6.83"
(173.48mm)
0.02"
(0.51mm)
67th Driest
Driest since:
1939
61st Wettest
Wettest since:
1923
Jun–Dec 1966
7-Month
8.36"
(212.34mm)
8.67"
(220.22mm)
-0.31"
(-7.88mm)
60th Driest
Driest since:
1935
68th Wettest
Wettest since:
1923
May–Dec 1966
8-Month
9.13"
(231.90mm)
10.88"
(276.35mm)
-1.75"
(-44.45mm)
30th Driest
Driest since:
1900
98th Wettest
Wettest since:
1923
Apr–Dec 1966
9-Month
10.68"
(271.27mm)
12.66"
(321.56mm)
-1.98"
(-50.29mm)
29th Driest
Driest since:
1954
99th Wettest
Wettest since:
1941
Mar–Dec 1966
10-Month
11.50"
(292.10mm)
13.91"
(353.31mm)
-2.41"
(-61.21mm)
22nd Driest
Driest since:
2012
106th Wettest
Wettest since:
1941
Feb–Dec 1966
11-Month
12.16"
(308.86mm)
14.88"
(377.95mm)
-2.72"
(-69.09mm)
20th Driest
Driest since:
2012
108th Wettest
Wettest since:
1941
Jan–Dec 1966
12-Month
12.67"
(321.82mm)
15.94"
(404.88mm)
-3.27"
(-83.06mm)
15th Driest
Driest since:
2012
113th Wettest
Wettest since:
1927
Ties: 1931
Jul 1965–Dec 1966
18-Month
19.51"
(495.55mm)
22.77"
(578.36mm)
-3.26"
(-82.81mm)
19th Driest
Driest since:
1934
108th Wettest
Wettest since:
1927
Jan 1965–Dec 1966
24-Month
29.40"
(746.76mm)
31.86"
(809.24mm)
-2.46"
(-62.48mm)
35th Driest
Driest since:
2002
92nd Wettest
Wettest since:
1983
Jan 1964–Dec 1966
36-Month
46.06"
(1,169.92mm)
47.82"
(1,214.63mm)
-1.76"
(-44.71mm)
43rd Driest
Driest since:
2002
83rd Wettest
Wettest since:
1947
Jan 1963–Dec 1966
48-Month
62.53"
(1,588.26mm)
63.72"
(1,618.49mm)
-1.19"
(-30.23mm)
57th Driest
Driest since:
2003
68th Wettest
Wettest since:
1998
Jan 1962–Dec 1966
60-Month
78.67"
(1,998.22mm)
79.58"
(2,021.33mm)
-0.91"
(-23.11mm)
58th Driest
Driest since:
1935
66th Wettest
Wettest since:
1999

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