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, January 1940

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Record Driest
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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2023)	Wettest/Driest Since	Record
January 1940 1-Month	1.61" (40.89mm)	1.06" (26.92mm)	0.55" (13.97mm)	118th Driest	Driest since: 1939	1961
	1.61" (40.89mm)	1.06" (26.92mm)	0.55" (13.97mm)	12th Wettest	Wettest since: 1916	1895
	Ties: 1916
Dec 1939–Jan 1940 2-Month	2.12" (53.85mm)	2.07" (52.58mm)	0.05" (1.27mm)	74th Driest	Driest since: 1939	1931
	2.12" (53.85mm)	2.07" (52.58mm)	0.05" (1.27mm)	55th Wettest	Wettest since: 1938	1997
	Ties: 1926
Nov 1939–Jan 1940 3-Month	2.14" (54.36mm)	3.10" (78.74mm)	-0.96" (-24.38mm)	13th Driest	Driest since: 1934	1931
	2.14" (54.36mm)	3.10" (78.74mm)	-0.96" (-24.38mm)	116th Wettest	Wettest since: 1939	1943
	Ties: 1934
Oct 1939–Jan 1940 4-Month	3.09" (78.49mm)	4.30" (109.22mm)	-1.21" (-30.73mm)	12th Driest	Driest since: 1934	1934, 1977
	3.09" (78.49mm)	4.30" (109.22mm)	-1.21" (-30.73mm)	117th Wettest	Wettest since: 1939	1943
	Ties: 2021
Sep 1939–Jan 1940 5-Month	4.14" (105.16mm)	5.54" (140.72mm)	-1.40" (-35.56mm)	13th Driest	Driest since: 1936	1934
	4.14" (105.16mm)	5.54" (140.72mm)	-1.40" (-35.56mm)	116th Wettest	Wettest since: 1939	1943
	Ties: 1908
Aug 1939–Jan 1940 6-Month	4.86" (123.44mm)	6.61" (167.89mm)	-1.75" (-44.45mm)	10th Driest	Driest since: 1934	1905
Aug 1939–Jan 1940 6-Month	4.86" (123.44mm)	6.61" (167.89mm)	-1.75" (-44.45mm)	119th Wettest	Wettest since: 1939	1928
Jul 1939–Jan 1940 7-Month	5.51" (139.95mm)	7.89" (200.41mm)	-2.38" (-60.46mm)	7th Driest	Driest since: 1934	2021
Jul 1939–Jan 1940 7-Month	5.51" (139.95mm)	7.89" (200.41mm)	-2.38" (-60.46mm)	122nd Wettest	Wettest since: 1939	1924
Jun 1939–Jan 1940 8-Month	7.24" (183.90mm)	9.72" (246.89mm)	-2.48" (-62.99mm)	15th Driest	Driest since: 1936	1934
Jun 1939–Jan 1940 8-Month	7.24" (183.90mm)	9.72" (246.89mm)	-2.48" (-62.99mm)	114th Wettest	Wettest since: 1939	1999
May 1939–Jan 1940 9-Month	8.96" (227.58mm)	11.92" (302.77mm)	-2.96" (-75.19mm)	14th Driest	Driest since: 1935	1901
May 1939–Jan 1940 9-Month	8.96" (227.58mm)	11.92" (302.77mm)	-2.96" (-75.19mm)	115th Wettest	Wettest since: 1939	1909
Apr 1939–Jan 1940 10-Month	10.00" (254.00mm)	13.72" (348.49mm)	-3.72" (-94.49mm)	7th Driest	Driest since: 1935	1955
Apr 1939–Jan 1940 10-Month	10.00" (254.00mm)	13.72" (348.49mm)	-3.72" (-94.49mm)	122nd Wettest	Wettest since: 1939	1942
Mar 1939–Jan 1940 11-Month	10.78" (273.81mm)	14.97" (380.24mm)	-4.19" (-106.43mm)	5th Driest	Driest to Date	2013
Mar 1939–Jan 1940 11-Month	10.78" (273.81mm)	14.97" (380.24mm)	-4.19" (-106.43mm)	124th Wettest	Wettest since: 1939	1996
Feb 1939–Jan 1940 12-Month	11.92" (302.77mm)	15.93" (404.62mm)	-4.01" (-101.85mm)	6th Driest	Driest to Date	2013
Feb 1939–Jan 1940 12-Month	11.92" (302.77mm)	15.93" (404.62mm)	-4.01" (-101.85mm)	123rd Wettest	Wettest since: 1939	1996
Aug 1938–Jan 1940 18-Month	19.01" (482.85mm)	22.54" (572.52mm)	-3.53" (-89.67mm)	16th Driest	Driest since: 1935	1935
	19.01" (482.85mm)	22.54" (572.52mm)	-3.53" (-89.67mm)	112th Wettest	Wettest since: 1939	1996
	Ties: 2001
Feb 1938–Jan 1940 24-Month	29.04" (737.62mm)	31.88" (809.75mm)	-2.84" (-72.13mm)	32nd Driest	Driest since: 1936	2003
Feb 1938–Jan 1940 24-Month	29.04" (737.62mm)	31.88" (809.75mm)	-2.84" (-72.13mm)	96th Wettest	Wettest since: 1939	1943
Feb 1937–Jan 1940 36-Month	47.14" (1,197.36mm)	47.78" (1,213.61mm)	-0.64" (-16.25mm)	58th Driest	Driest since: 1937	2003
Feb 1937–Jan 1940 36-Month	47.14" (1,197.36mm)	47.78" (1,213.61mm)	-0.64" (-16.25mm)	69th Wettest	Wettest since: 1939	1948
Feb 1936–Jan 1940 48-Month	62.37" (1,584.20mm)	63.65" (1,616.71mm)	-1.28" (-32.51mm)	56th Driest	Driest since: 1938	2004
Feb 1936–Jan 1940 48-Month	62.37" (1,584.20mm)	63.65" (1,616.71mm)	-1.28" (-32.51mm)	70th Wettest	Wettest since: 1939	1999
Feb 1935–Jan 1940 60-Month	77.19" (1,960.63mm)	79.51" (2,019.55mm)	-2.32" (-58.92mm)	48th Driest	Driest since: 1938	2005
Feb 1935–Jan 1940 60-Month	77.19" (1,960.63mm)	79.51" (2,019.55mm)	-2.32" (-58.92mm)	77th Wettest	Wettest since: 1939	2000

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published March 2023, retrieved on March 27, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings