Statewide Rankings

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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 1940

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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
October 1940 1-Month	1.16" (29.46mm)	1.20" (30.48mm)	-0.04" (-1.02mm)	63rd Driest	Driest since: 1939	1933
	1.16" (29.46mm)	1.20" (30.48mm)	-0.04" (-1.02mm)	66th Wettest	Wettest since: 1938	1994
	Ties: 1979
Sep–Oct 1940 2-Month	3.59" (91.19mm)	2.44" (61.98mm)	1.15" (29.21mm)	114th Driest	Driest since: 1939	1952
Sep–Oct 1940 2-Month	3.59" (91.19mm)	2.44" (61.98mm)	1.15" (29.21mm)	15th Wettest	Wettest since: 1924	2013
Aug–Oct 1940 3-Month	4.07" (103.38mm)	3.51" (89.15mm)	0.56" (14.23mm)	96th Driest	Driest since: 1939	1958
Aug–Oct 1940 3-Month	4.07" (103.38mm)	3.51" (89.15mm)	0.56" (14.23mm)	33rd Wettest	Wettest since: 1930	1923
Jul–Oct 1940 4-Month	5.13" (130.30mm)	4.79" (121.67mm)	0.34" (8.63mm)	84th Driest	Driest since: 1939	1964
	5.13" (130.30mm)	4.79" (121.67mm)	0.34" (8.63mm)	45th Wettest	Wettest since: 1938	1923
	Ties: 1950
Jun–Oct 1940 5-Month	6.49" (164.85mm)	6.62" (168.15mm)	-0.13" (-3.30mm)	74th Driest	Driest since: 1939	1988
	6.49" (164.85mm)	6.62" (168.15mm)	-0.13" (-3.30mm)	55th Wettest	Wettest since: 1938	1923
	Ties: 1977
May–Oct 1940 6-Month	7.33" (186.18mm)	8.84" (224.54mm)	-1.51" (-38.36mm)	31st Driest	Driest since: 1939	2012
May–Oct 1940 6-Month	7.33" (186.18mm)	8.84" (224.54mm)	-1.51" (-38.36mm)	98th Wettest	Wettest since: 1938	1923
Apr–Oct 1940 7-Month	10.38" (263.65mm)	10.61" (269.49mm)	-0.23" (-5.84mm)	63rd Driest	Driest since: 1939	2012
	10.38" (263.65mm)	10.61" (269.49mm)	-0.23" (-5.84mm)	66th Wettest	Wettest since: 1938	1941
	Ties: 1961
Mar–Oct 1940 8-Month	11.47" (291.34mm)	11.86" (301.24mm)	-0.39" (-9.90mm)	57th Driest	Driest since: 1939	2012
	11.47" (291.34mm)	11.86" (301.24mm)	-0.39" (-9.90mm)	72nd Wettest	Wettest since: 1938	1941
	Ties: 1977
Feb–Oct 1940 9-Month	12.70" (322.58mm)	12.83" (325.88mm)	-0.13" (-3.30mm)	65th Driest	Driest since: 1939	2012
Feb–Oct 1940 9-Month	12.70" (322.58mm)	12.83" (325.88mm)	-0.13" (-3.30mm)	64th Wettest	Wettest since: 1938	1941
Jan–Oct 1940 10-Month	14.31" (363.47mm)	13.89" (352.81mm)	0.42" (10.66mm)	73rd Driest	Driest since: 1939	2012
Jan–Oct 1940 10-Month	14.31" (363.47mm)	13.89" (352.81mm)	0.42" (10.66mm)	56th Wettest	Wettest since: 1938	1923
Dec 1939–Oct 1940 11-Month	14.82" (376.43mm)	14.90" (378.46mm)	-0.08" (-2.03mm)	62nd Driest	Driest since: 1939	2012
Dec 1939–Oct 1940 11-Month	14.82" (376.43mm)	14.90" (378.46mm)	-0.08" (-2.03mm)	66th Wettest	Wettest since: 1938	1923
Nov 1939–Oct 1940 12-Month	14.84" (376.94mm)	15.94" (404.88mm)	-1.10" (-27.94mm)	44th Driest	Driest since: 1939	1960
Nov 1939–Oct 1940 12-Month	14.84" (376.94mm)	15.94" (404.88mm)	-1.10" (-27.94mm)	84th Wettest	Wettest since: 1938	1923
May 1939–Oct 1940 18-Month	21.66" (550.16mm)	24.75" (628.65mm)	-3.09" (-78.49mm)	25th Driest	Driest since: 1935	1934
May 1939–Oct 1940 18-Month	21.66" (550.16mm)	24.75" (628.65mm)	-3.09" (-78.49mm)	103rd Wettest	Wettest since: 1939	1927
Nov 1938–Oct 1940 24-Month	27.72" (704.09mm)	31.86" (809.24mm)	-4.14" (-105.15mm)	19th Driest	Driest since: 1935	2002
Nov 1938–Oct 1940 24-Month	27.72" (704.09mm)	31.86" (809.24mm)	-4.14" (-105.15mm)	108th Wettest	Wettest since: 1939	1998
Nov 1937–Oct 1940 36-Month	45.47" (1,154.94mm)	47.81" (1,214.37mm)	-2.34" (-59.43mm)	35th Driest	Driest since: 1936	2002
Nov 1937–Oct 1940 36-Month	45.47" (1,154.94mm)	47.81" (1,214.37mm)	-2.34" (-59.43mm)	91st Wettest	Wettest since: 1939	1947
Nov 1936–Oct 1940 48-Month	62.42" (1,585.47mm)	63.72" (1,618.49mm)	-1.30" (-33.02mm)	55th Driest	Driest since: 1937	2003
Nov 1936–Oct 1940 48-Month	62.42" (1,585.47mm)	63.72" (1,618.49mm)	-1.30" (-33.02mm)	70th Wettest	Wettest since: 1939	1998
Nov 1935–Oct 1940 60-Month	77.99" (1,980.95mm)	79.57" (2,021.08mm)	-1.58" (-40.13mm)	53rd Driest	Driest since: 1939	1935
Nov 1935–Oct 1940 60-Month	77.99" (1,980.95mm)	79.57" (2,021.08mm)	-1.58" (-40.13mm)	71st Wettest	Wettest since: 1932	1999

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published May 2023, retrieved on June 4, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings