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 1978

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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 1978 1-Month	0.47" (11.94mm)	1.20" (30.48mm)	-0.73" (-18.54mm)	12th Driest	Driest since: 1965	1933
	0.47" (11.94mm)	1.20" (30.48mm)	-0.73" (-18.54mm)	117th Wettest	Wettest since: 1977	1994
	Ties: 1896
Sep–Oct 1978 2-Month	1.67" (42.42mm)	2.44" (61.98mm)	-0.77" (-19.56mm)	26th Driest	Driest since: 1968	1952
	1.67" (42.42mm)	2.44" (61.98mm)	-0.77" (-19.56mm)	103rd Wettest	Wettest since: 1977	2013
	Ties: 1932
Aug–Oct 1978 3-Month	2.80" (71.12mm)	3.51" (89.15mm)	-0.71" (-18.03mm)	36th Driest	Driest since: 1975	1958
	2.80" (71.12mm)	3.51" (89.15mm)	-0.71" (-18.03mm)	93rd Wettest	Wettest since: 1977	1923
	Ties: 1914
Jul–Oct 1978 4-Month	4.26" (108.20mm)	4.79" (121.67mm)	-0.53" (-13.47mm)	53rd Driest	Driest since: 1976	1964
Jul–Oct 1978 4-Month	4.26" (108.20mm)	4.79" (121.67mm)	-0.53" (-13.47mm)	76th Wettest	Wettest since: 1977	1923
Jun–Oct 1978 5-Month	5.14" (130.56mm)	6.62" (168.15mm)	-1.48" (-37.59mm)	23rd Driest	Driest since: 1960	1988
Jun–Oct 1978 5-Month	5.14" (130.56mm)	6.62" (168.15mm)	-1.48" (-37.59mm)	106th Wettest	Wettest since: 1977	1923
May–Oct 1978 6-Month	9.84" (249.94mm)	8.84" (224.54mm)	1.00" (25.40mm)	97th Driest	Driest since: 1977	2012
May–Oct 1978 6-Month	9.84" (249.94mm)	8.84" (224.54mm)	1.00" (25.40mm)	32nd Wettest	Wettest since: 1968	1923
Apr–Oct 1978 7-Month	11.79" (299.47mm)	10.61" (269.49mm)	1.18" (29.98mm)	95th Driest	Driest since: 1977	2012
Apr–Oct 1978 7-Month	11.79" (299.47mm)	10.61" (269.49mm)	1.18" (29.98mm)	34th Wettest	Wettest since: 1973	1941
Mar–Oct 1978 8-Month	12.55" (318.77mm)	11.86" (301.24mm)	0.69" (17.53mm)	86th Driest	Driest since: 1977	2012
Mar–Oct 1978 8-Month	12.55" (318.77mm)	11.86" (301.24mm)	0.69" (17.53mm)	43rd Wettest	Wettest since: 1973	1941
Feb–Oct 1978 9-Month	13.93" (353.82mm)	12.83" (325.88mm)	1.10" (27.94mm)	91st Driest	Driest since: 1977	2012
Feb–Oct 1978 9-Month	13.93" (353.82mm)	12.83" (325.88mm)	1.10" (27.94mm)	38th Wettest	Wettest since: 1973	1941
Jan–Oct 1978 10-Month	15.27" (387.86mm)	13.89" (352.81mm)	1.38" (35.05mm)	98th Driest	Driest since: 1977	2012
Jan–Oct 1978 10-Month	15.27" (387.86mm)	13.89" (352.81mm)	1.38" (35.05mm)	31st Wettest	Wettest since: 1971	1923
Dec 1977–Oct 1978 11-Month	16.72" (424.69mm)	14.90" (378.46mm)	1.82" (46.23mm)	100th Driest	Driest since: 1977	2012
Dec 1977–Oct 1978 11-Month	16.72" (424.69mm)	14.90" (378.46mm)	1.82" (46.23mm)	28th Wettest	Wettest since: 1971	1923
Nov 1977–Oct 1978 12-Month	17.94" (455.68mm)	15.94" (404.88mm)	2.00" (50.80mm)	103rd Driest	Driest since: 1977	1960
Nov 1977–Oct 1978 12-Month	17.94" (455.68mm)	15.94" (404.88mm)	2.00" (50.80mm)	25th Wettest	Wettest since: 1971	1923
May 1977–Oct 1978 18-Month	26.58" (675.13mm)	24.75" (628.65mm)	1.83" (46.48mm)	90th Driest	Driest since: 1977	1934
	26.58" (675.13mm)	24.75" (628.65mm)	1.83" (46.48mm)	38th Wettest	Wettest since: 1973	1927
	Ties: 1972
Nov 1976–Oct 1978 24-Month	31.34" (796.04mm)	31.86" (809.24mm)	-0.52" (-13.20mm)	56th Driest	Driest since: 1977	2002
	31.34" (796.04mm)	31.86" (809.24mm)	-0.52" (-13.20mm)	71st Wettest	Wettest since: 1976	1998
	Ties: 1897, 1916
Nov 1975–Oct 1978 36-Month	47.46" (1,205.48mm)	47.81" (1,214.37mm)	-0.35" (-8.89mm)	63rd Driest	Driest since: 1977	2002
Nov 1975–Oct 1978 36-Month	47.46" (1,205.48mm)	47.81" (1,214.37mm)	-0.35" (-8.89mm)	63rd Wettest	Wettest since: 1975	1947
Nov 1974–Oct 1978 48-Month	63.53" (1,613.66mm)	63.72" (1,618.49mm)	-0.19" (-4.83mm)	61st Driest	Driest since: 1977	2003
Nov 1974–Oct 1978 48-Month	63.53" (1,613.66mm)	63.72" (1,618.49mm)	-0.19" (-4.83mm)	64th Wettest	Wettest since: 1976	1998
Nov 1973–Oct 1978 60-Month	78.18" (1,985.77mm)	79.57" (2,021.08mm)	-1.39" (-35.31mm)	54th Driest	Driest since: 1977	1935
Nov 1973–Oct 1978 60-Month	78.18" (1,985.77mm)	79.57" (2,021.08mm)	-1.39" (-35.31mm)	70th Wettest	Wettest since: 1976	1999

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published May 2023, retrieved on June 6, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings