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, October 1947

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  • Record Wettest
Period Value 1901-2000
Mean		 Anomaly Rank
(1895-2022)		 Wettest/Driest
Since		 Record
October 1947
1-Month 		1.33"
(33.78mm)		 1.20"
(30.48mm)		 0.13"
(3.30mm)		 79th Driest
Driest since:
 1933
50th Wettest
Wettest since:
 1994
Ties: 1936
Sep–Oct 1947
2-Month 		2.57"
(65.28mm)		 2.44"
(61.98mm)		 0.13"
(3.30mm)		 81st Driest
Driest since:
 1952
48th Wettest
Wettest since:
 2013
Aug–Oct 1947
3-Month 		3.83"
(97.28mm)		 3.51"
(89.15mm)		 0.32"
(8.13mm)		 85th Driest
Driest since:
 1958
44th Wettest
Wettest since:
 1923
Ties: 2009
Jul–Oct 1947
4-Month 		4.78"
(121.41mm)		 4.79"
(121.67mm)		 -0.01"
(-0.26mm)		 66th Driest
Driest since:
 1964
63rd Wettest
Wettest since:
 1923
Jun–Oct 1947
5-Month 		8.75"
(222.25mm)		 6.62"
(168.15mm)		 2.13"
(54.10mm)		 117th Driest
Driest since:
 1988
12th Wettest
Wettest since:
 1923
May–Oct 1947
6-Month 		11.33"
(287.78mm)		 8.84"
(224.54mm)		 2.49"
(63.24mm)		 119th Driest
Driest since:
 2012
10th Wettest
Wettest since:
 1923
Apr–Oct 1947
7-Month 		13.21"
(335.53mm)		 10.61"
(269.49mm)		 2.60"
(66.04mm)		 117th Driest
Driest since:
 2012
12th Wettest
Wettest since:
 1941
Mar–Oct 1947
8-Month 		14.28"
(362.71mm)		 11.86"
(301.24mm)		 2.42"
(61.47mm)		 112th Driest
Driest since:
 2012
17th Wettest
Wettest since:
 1941
Feb–Oct 1947
9-Month 		15.23"
(386.84mm)		 12.83"
(325.88mm)		 2.40"
(60.96mm)		 111th Driest
Driest since:
 2012
18th Wettest
Wettest since:
 1941
Jan–Oct 1947
10-Month 		16.07"
(408.18mm)		 13.89"
(352.81mm)		 2.18"
(55.37mm)		 107th Driest
Driest since:
 2012
22nd Wettest
Wettest since:
 1923
Dec 1946–Oct 1947
11-Month 		17.14"
(435.36mm)		 14.90"
(378.46mm)		 2.24"
(56.90mm)		 104th Driest
Driest since:
 2012
24th Wettest
Wettest since:
 1923
Nov 1946–Oct 1947
12-Month 		18.13"
(460.50mm)		 15.94"
(404.88mm)		 2.19"
(55.62mm)		 106th Driest
Driest since:
 1960
22nd Wettest
Wettest since:
 1923
May 1946–Oct 1947
18-Month 		29.58"
(751.33mm)		 24.75"
(628.65mm)		 4.83"
(122.68mm)		 123rd Driest
Driest since:
 1934
5th Wettest
Wettest since:
 1927
Nov 1945–Oct 1947
24-Month 		36.81"
(934.97mm)		 31.86"
(809.24mm)		 4.95"
(125.73mm)		 122nd Driest
Driest since:
 2002
5th Wettest
Wettest since:
 1998
Nov 1944–Oct 1947
36-Month 		56.46"
(1,434.08mm)		 47.81"
(1,214.37mm)		 8.65"
(219.71mm)		 125th Driest
Driest since:
 2002
1st Wettest
Wettest to Date
 1947
Nov 1943–Oct 1947
48-Month 		73.26"
(1,860.80mm)		 63.72"
(1,618.49mm)		 9.54"
(242.31mm)		 123rd Driest
Driest since:
 2003
2nd Wettest
Wettest to Date
 1998
Nov 1942–Oct 1947
60-Month 		90.56"
(2,300.22mm)		 79.57"
(2,021.08mm)		 10.99"
(279.14mm)		 122nd Driest
Driest since:
 1935
2nd Wettest
Wettest to Date
 1999

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