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, December 1931

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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
December 1931 1-Month	0.78" (19.81mm)	1.01" (25.65mm)	-0.23" (-5.84mm)	37th Driest	Driest since: 1930	1986
	0.78" (19.81mm)	1.01" (25.65mm)	-0.23" (-5.84mm)	92nd Wettest	Wettest since: 1927	1964, 1996
	Ties: 1953, 1957, 1999
Nov–Dec 1931 2-Month	1.73" (43.94mm)	2.05" (52.07mm)	-0.32" (-8.13mm)	39th Driest	Driest since: 1930	1914
	1.73" (43.94mm)	2.05" (52.07mm)	-0.32" (-8.13mm)	90th Wettest	Wettest since: 1929	1983
	Ties: 1923, 1932, 1993
Oct–Dec 1931 3-Month	3.16" (80.26mm)	3.24" (82.30mm)	-0.08" (-2.04mm)	56th Driest	Driest since: 1929	1976
	3.16" (80.26mm)	3.24" (82.30mm)	-0.08" (-2.04mm)	73rd Wettest	Wettest since: 1930	1942
	Ties: 1944
Sep–Dec 1931 4-Month	4.13" (104.90mm)	4.48" (113.79mm)	-0.35" (-8.89mm)	49th Driest	Driest since: 1922	1952
Sep–Dec 1931 4-Month	4.13" (104.90mm)	4.48" (113.79mm)	-0.35" (-8.89mm)	80th Wettest	Wettest since: 1930	2013
Aug–Dec 1931 5-Month	5.31" (134.87mm)	5.55" (140.97mm)	-0.24" (-6.10mm)	53rd Driest	Driest since: 1928	1904
Aug–Dec 1931 5-Month	5.31" (134.87mm)	5.55" (140.97mm)	-0.24" (-6.10mm)	76th Wettest	Wettest since: 1930	1923
Jul–Dec 1931 6-Month	6.47" (164.34mm)	6.83" (173.48mm)	-0.36" (-9.14mm)	55th Driest	Driest since: 1921	1939
Jul–Dec 1931 6-Month	6.47" (164.34mm)	6.83" (173.48mm)	-0.36" (-9.14mm)	74th Wettest	Wettest since: 1930	1923
Jun–Dec 1931 7-Month	7.58" (192.53mm)	8.67" (220.22mm)	-1.09" (-27.69mm)	34th Driest	Driest since: 1920	1935
Jun–Dec 1931 7-Month	7.58" (192.53mm)	8.67" (220.22mm)	-1.09" (-27.69mm)	95th Wettest	Wettest since: 1930	1923
May–Dec 1931 8-Month	9.27" (235.46mm)	10.88" (276.35mm)	-1.61" (-40.89mm)	35th Driest	Driest since: 1919	1900
May–Dec 1931 8-Month	9.27" (235.46mm)	10.88" (276.35mm)	-1.61" (-40.89mm)	94th Wettest	Wettest since: 1930	1923
Apr–Dec 1931 9-Month	10.51" (266.95mm)	12.66" (321.56mm)	-2.15" (-54.61mm)	26th Driest	Driest since: 1924	1954
Apr–Dec 1931 9-Month	10.51" (266.95mm)	12.66" (321.56mm)	-2.15" (-54.61mm)	103rd Wettest	Wettest since: 1930	1941
Mar–Dec 1931 10-Month	11.75" (298.45mm)	13.91" (353.31mm)	-2.16" (-54.86mm)	26th Driest	Driest since: 1919	2012
Mar–Dec 1931 10-Month	11.75" (298.45mm)	13.91" (353.31mm)	-2.16" (-54.86mm)	103rd Wettest	Wettest since: 1930	1941
Feb–Dec 1931 11-Month	12.33" (313.18mm)	14.88" (377.95mm)	-2.55" (-64.77mm)	22nd Driest	Driest since: 1919	2012
Feb–Dec 1931 11-Month	12.33" (313.18mm)	14.88" (377.95mm)	-2.55" (-64.77mm)	107th Wettest	Wettest since: 1930	1941
Jan–Dec 1931 12-Month	12.67" (321.82mm)	15.94" (404.88mm)	-3.27" (-83.06mm)	15th Driest	Driest since: 1919	2012
	12.67" (321.82mm)	15.94" (404.88mm)	-3.27" (-83.06mm)	114th Wettest	Wettest since: 1930	1927
	Ties: 1966
Jul 1930–Dec 1931 18-Month	21.32" (541.53mm)	22.77" (578.36mm)	-1.45" (-36.83mm)	45th Driest	Driest since: 1921	1934
Jul 1930–Dec 1931 18-Month	21.32" (541.53mm)	22.77" (578.36mm)	-1.45" (-36.83mm)	83rd Wettest	Wettest since: 1930	1927
Jan 1930–Dec 1931 24-Month	29.37" (746.00mm)	31.87" (809.50mm)	-2.50" (-63.50mm)	35th Driest	Driest since: 1920	2002
Jan 1930–Dec 1931 24-Month	29.37" (746.00mm)	31.87" (809.50mm)	-2.50" (-63.50mm)	93rd Wettest	Wettest since: 1930	1983
Jan 1929–Dec 1931 36-Month	46.40" (1,178.56mm)	47.82" (1,214.63mm)	-1.42" (-36.07mm)	50th Driest	Driest since: 1922	2002
Jan 1929–Dec 1931 36-Month	46.40" (1,178.56mm)	47.82" (1,214.63mm)	-1.42" (-36.07mm)	77th Wettest	Wettest since: 1930	1947
Jan 1928–Dec 1931 48-Month	62.52" (1,588.01mm)	63.72" (1,618.49mm)	-1.20" (-30.48mm)	57th Driest	Driest since: 1922	2003
Jan 1928–Dec 1931 48-Month	62.52" (1,588.01mm)	63.72" (1,618.49mm)	-1.20" (-30.48mm)	69th Wettest	Wettest since: 1930	1998
Jan 1927–Dec 1931 60-Month	83.02" (2,108.71mm)	79.58" (2,021.33mm)	3.44" (87.38mm)	91st Driest	Driest since: 1925	1935
Jan 1927–Dec 1931 60-Month	83.02" (2,108.71mm)	79.58" (2,021.33mm)	3.44" (87.38mm)	34th Wettest	Wettest since: 1930	1999

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published May 2023, retrieved on June 7, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings