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, September 2002

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
September 2002
1-Month
1.36"
(34.54mm)
1.24"
(31.50mm)
0.12"
(3.04mm)
86th Driest
Driest since:
1979
43rd Wettest
Wettest since:
1923
Aug–Sep 2002
2-Month
2.52"
(64.01mm)
2.31"
(58.67mm)
0.21"
(5.34mm)
81st Driest
Driest since:
2012
48th Wettest
Wettest since:
1923
Jul–Sep 2002
3-Month
3.58"
(90.93mm)
3.59"
(91.19mm)
-0.01"
(-0.26mm)
74th Driest
Driest since:
1964
55th Wettest
Wettest since:
1923
Jun–Sep 2002
4-Month
4.24"
(107.70mm)
5.43"
(137.92mm)
-1.19"
(-30.22mm)
35th Driest
Driest since:
2012
94th Wettest
Wettest since:
1923
Ties: 2021
May–Sep 2002
5-Month
5.49"
(139.45mm)
7.64"
(194.06mm)
-2.15"
(-54.61mm)
20th Driest
Driest since:
1919
109th Wettest
Wettest since:
1915
Apr–Sep 2002
6-Month
6.83"
(173.48mm)
9.42"
(239.27mm)
-2.59"
(-65.79mm)
17th Driest
Driest since:
2012
112th Wettest
Wettest since:
1941
Mar–Sep 2002
7-Month
8.21"
(208.53mm)
10.67"
(271.02mm)
-2.46"
(-62.49mm)
19th Driest
Driest since:
2012
110th Wettest
Wettest since:
1941
Feb–Sep 2002
8-Month
8.72"
(221.49mm)
11.63"
(295.40mm)
-2.91"
(-73.91mm)
14th Driest
Driest since:
2012
115th Wettest
Wettest since:
1945
Jan–Sep 2002
9-Month
9.39"
(238.51mm)
12.70"
(322.58mm)
-3.31"
(-84.07mm)
12th Driest
Driest since:
1919
117th Wettest
Wettest since:
1915, 1945
Dec 2001–Sep 2002
10-Month
10.13"
(257.30mm)
13.71"
(348.23mm)
-3.58"
(-90.93mm)
10th Driest
Driest since:
1919
118th Wettest
Wettest since:
1923
Nov 2001–Sep 2002
11-Month
11.08"
(281.43mm)
14.74"
(374.40mm)
-3.66"
(-92.97mm)
9th Driest
Driest since:
1919
119th Wettest
Wettest since:
1923
Oct 2001–Sep 2002
12-Month
12.18"
(309.37mm)
15.94"
(404.88mm)
-3.76"
(-95.51mm)
8th Driest
Driest since:
1919
120th Wettest
Wettest since:
1995
Apr 2001–Sep 2002
18-Month
19.33"
(490.98mm)
25.35"
(643.89mm)
-6.02"
(-152.91mm)
4th Driest
Driest since:
2021
124th Wettest
Wettest since:
1945
Oct 2000–Sep 2002
24-Month
24.13"
(612.90mm)
31.88"
(809.75mm)
-7.75"
(-196.85mm)
1st Driest
Driest since:
2002
126th Wettest
Wettest since:
1998
Oct 1999–Sep 2002
36-Month
37.36"
(948.94mm)
47.81"
(1,214.37mm)
-10.45"
(-265.43mm)
1st Driest
Driest since:
2002
125th Wettest
Wettest since:
1997
Oct 1998–Sep 2002
48-Month
56.41"
(1,432.81mm)
63.72"
(1,618.49mm)
-7.31"
(-185.68mm)
11th Driest
Driest since:
2003
114th Wettest
Wettest since:
1998
Oct 1997–Sep 2002
60-Month
73.94"
(1,878.08mm)
79.56"
(2,020.82mm)
-5.62"
(-142.74mm)
24th Driest
Driest since:
2004
100th Wettest
Wettest since:
1999

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