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 2001

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PeriodValue1901-2000
Mean		AnomalyRank
(1895-2022)		Wettest/Driest
Since		Record
September 2001
1-Month		0.90"
(22.86mm)		1.24"
(31.50mm)		-0.34"
(-8.64mm)		47th Driest
Driest since:
1979
82nd Wettest
Wettest since:
1923
Aug–Sep 2001
2-Month		1.53"
(38.86mm)		2.31"
(58.67mm)		-0.78"
(-19.81mm)		27th Driest
Driest since:
2012
102nd Wettest
Wettest since:
1923
Ties: 1911, 1949
Jul–Sep 2001
3-Month		3.03"
(76.96mm)		3.59"
(91.19mm)		-0.56"
(-14.23mm)		50th Driest
Driest since:
1964
79th Wettest
Wettest since:
1923
Jun–Sep 2001
4-Month		4.28"
(108.71mm)		5.43"
(137.92mm)		-1.15"
(-29.21mm)		37th Driest
Driest since:
2012
92nd Wettest
Wettest since:
1923
May–Sep 2001
5-Month		5.41"
(137.41mm)		7.64"
(194.06mm)		-2.23"
(-56.65mm)		18th Driest
Driest since:
1919
111th Wettest
Wettest since:
1915
Apr–Sep 2001
6-Month		7.15"
(181.61mm)		9.42"
(239.27mm)		-2.27"
(-57.66mm)		20th Driest
Driest since:
2012
109th Wettest
Wettest since:
1941
Mar–Sep 2001
7-Month		7.83"
(198.88mm)		10.67"
(271.02mm)		-2.84"
(-72.14mm)		15th Driest
Driest since:
2012
114th Wettest
Wettest since:
1941
Feb–Sep 2001
8-Month		8.75"
(222.25mm)		11.63"
(295.40mm)		-2.88"
(-73.15mm)		15th Driest
Driest since:
2012
114th Wettest
Wettest since:
1945
Jan–Sep 2001
9-Month		9.12"
(231.65mm)		12.70"
(322.58mm)		-3.58"
(-90.93mm)		8th Driest
Driest since:
1919
121st Wettest
Wettest since:
1915, 1945
Dec 2000–Sep 2001
10-Month		9.98"
(253.49mm)		13.71"
(348.23mm)		-3.73"
(-94.74mm)		6th Driest
Driest since:
1919
122nd Wettest
Wettest since:
1923
Nov 2000–Sep 2001
11-Month		10.97"
(278.64mm)		14.74"
(374.40mm)		-3.77"
(-95.76mm)		8th Driest
Driest since:
1919
120th Wettest
Wettest since:
1923
Oct 2000–Sep 2001
12-Month		11.95"
(303.53mm)		15.94"
(404.88mm)		-3.99"
(-101.35mm)		7th Driest
Driest since:
1919
121st Wettest
Wettest since:
1995
Apr 2000–Sep 2001
18-Month		20.01"
(508.25mm)		25.35"
(643.89mm)		-5.34"
(-135.64mm)		7th Driest
Driest since:
2021
121st Wettest
Wettest since:
1945
Oct 1999–Sep 2001
24-Month		25.18"
(639.57mm)		31.88"
(809.75mm)		-6.70"
(-170.18mm)		2nd Driest
Driest to Date
2002
125th Wettest
Wettest since:
1998
Oct 1998–Sep 2001
36-Month		44.23"
(1,123.44mm)		47.81"
(1,214.37mm)		-3.58"
(-90.93mm)		28th Driest
Driest since:
2002
98th Wettest
Wettest since:
1997
Oct 1997–Sep 2001
48-Month		61.76"
(1,568.70mm)		63.72"
(1,618.49mm)		-1.96"
(-49.79mm)		49th Driest
Driest since:
2003
76th Wettest
Wettest since:
1998
Oct 1996–Sep 2001
60-Month		82.02"
(2,083.31mm)		79.56"
(2,020.82mm)		2.46"
(62.49mm)		83rd Driest
Driest since:
2004
41st Wettest
Wettest since:
1999
Ties: 1965

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