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, January 1999

View Period (Months):
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  • Record Driest
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Wettest/Driest
Since
Record
January 1999
1-Month
1.22"
(30.99mm)
1.06"
(26.92mm)
0.16"
(4.07mm)
92nd Driest
Driest since:
1961
37th Wettest
Wettest since:
1895
Dec 1998–Jan 1999
2-Month
2.06"
(52.32mm)
2.07"
(52.58mm)
-0.01"
(-0.26mm)
68th Driest
Driest since:
1931
60th Wettest
Wettest since:
1997
Nov 1998–Jan 1999
3-Month
3.27"
(83.06mm)
3.10"
(78.74mm)
0.17"
(4.32mm)
80th Driest
Driest since:
1931
48th Wettest
Wettest since:
1943
Oct 1998–Jan 1999
4-Month
6.08"
(154.43mm)
4.30"
(109.22mm)
1.78"
(45.21mm)
123rd Driest
Driest since:
1934, 1977
5th Wettest
Wettest since:
1943
Sep 1998–Jan 1999
5-Month
7.42"
(188.47mm)
5.54"
(140.72mm)
1.88"
(47.75mm)
117th Driest
Driest since:
1934
11th Wettest
Wettest since:
1943
Ties: 1983
Aug 1998–Jan 1999
6-Month
8.79"
(223.27mm)
6.61"
(167.89mm)
2.18"
(55.38mm)
121st Driest
Driest since:
1905
7th Wettest
Wettest since:
1928
Ties: 1974
Jul 1998–Jan 1999
7-Month
10.53"
(267.46mm)
7.89"
(200.41mm)
2.64"
(67.05mm)
123rd Driest
Driest since:
2021
5th Wettest
Wettest since:
1924
Jun 1998–Jan 1999
8-Month
13.86"
(352.04mm)
9.72"
(246.89mm)
4.14"
(105.15mm)
127th Driest
Driest since:
1934
1st Wettest
Wettest to Date
1999
May 1998–Jan 1999
9-Month
15.30"
(388.62mm)
11.92"
(302.77mm)
3.38"
(85.85mm)
122nd Driest
Driest since:
1901
6th Wettest
Wettest since:
1909
Ties: 1983
Apr 1998–Jan 1999
10-Month
16.66"
(423.16mm)
13.72"
(348.49mm)
2.94"
(74.67mm)
117th Driest
Driest since:
1955
11th Wettest
Wettest since:
1942
Mar 1998–Jan 1999
11-Month
18.48"
(469.39mm)
14.97"
(380.24mm)
3.51"
(89.15mm)
120th Driest
Driest since:
2013
8th Wettest
Wettest since:
1996
Feb 1998–Jan 1999
12-Month
19.38"
(492.25mm)
15.93"
(404.62mm)
3.45"
(87.63mm)
120th Driest
Driest since:
2013
8th Wettest
Wettest since:
1996
Aug 1997–Jan 1999
18-Month
27.08"
(687.83mm)
22.54"
(572.52mm)
4.54"
(115.31mm)
121st Driest
Driest since:
1935
6th Wettest
Wettest since:
1996
Feb 1997–Jan 1999
24-Month
37.17"
(944.12mm)
31.88"
(809.75mm)
5.29"
(134.37mm)
119th Driest
Driest since:
2003
8th Wettest
Wettest since:
1943
Feb 1996–Jan 1999
36-Month
54.45"
(1,383.03mm)
47.78"
(1,213.61mm)
6.67"
(169.42mm)
120th Driest
Driest since:
2003
6th Wettest
Wettest since:
1948
Feb 1995–Jan 1999
48-Month
75.28"
(1,912.11mm)
63.65"
(1,616.71mm)
11.63"
(295.40mm)
124th Driest
Driest since:
2004
1st Wettest
Wettest to Date
1999
Feb 1994–Jan 1999
60-Month
89.43"
(2,271.52mm)
79.51"
(2,019.55mm)
9.92"
(251.97mm)
119th Driest
Driest since:
2005
5th Wettest
Wettest since:
2000

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