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 1991

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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 1991 1-Month	0.60" (15.24mm)	1.06" (26.92mm)	-0.46" (-11.68mm)	16th Driest	Driest since: 1983	1961
	0.60" (15.24mm)	1.06" (26.92mm)	-0.46" (-11.68mm)	114th Wettest	Wettest since: 1990	1895
	Ties: 1908
Dec 1990–Jan 1991 2-Month	1.42" (36.07mm)	2.07" (52.58mm)	-0.65" (-16.51mm)	23rd Driest	Driest since: 1987	1931
	1.42" (36.07mm)	2.07" (52.58mm)	-0.65" (-16.51mm)	106th Wettest	Wettest since: 1990	1997
	Ties: 1906
Nov 1990–Jan 1991 3-Month	2.65" (67.31mm)	3.10" (78.74mm)	-0.45" (-11.43mm)	40th Driest	Driest since: 1987	1931
	2.65" (67.31mm)	3.10" (78.74mm)	-0.45" (-11.43mm)	89th Wettest	Wettest since: 1990	1943
	Ties: 2014
Oct 1990–Jan 1991 4-Month	3.79" (96.27mm)	4.30" (109.22mm)	-0.51" (-12.95mm)	40th Driest	Driest since: 1990	1934, 1977
	3.79" (96.27mm)	4.30" (109.22mm)	-0.51" (-12.95mm)	89th Wettest	Wettest since: 1987	1943
	Ties: 1957
Sep 1990–Jan 1991 5-Month	4.84" (122.94mm)	5.54" (140.72mm)	-0.70" (-17.78mm)	40th Driest	Driest since: 1989	1934
Sep 1990–Jan 1991 5-Month	4.84" (122.94mm)	5.54" (140.72mm)	-0.70" (-17.78mm)	89th Wettest	Wettest since: 1990	1943
Aug 1990–Jan 1991 6-Month	5.96" (151.38mm)	6.61" (167.89mm)	-0.65" (-16.51mm)	46th Driest	Driest since: 1989	1905
	5.96" (151.38mm)	6.61" (167.89mm)	-0.65" (-16.51mm)	83rd Wettest	Wettest since: 1990	1928
	Ties: 1976
Jul 1990–Jan 1991 7-Month	7.86" (199.64mm)	7.89" (200.41mm)	-0.03" (-0.77mm)	65th Driest	Driest since: 1990	2021
Jul 1990–Jan 1991 7-Month	7.86" (199.64mm)	7.89" (200.41mm)	-0.03" (-0.77mm)	64th Wettest	Wettest since: 1987	1924
Jun 1990–Jan 1991 8-Month	9.05" (229.87mm)	9.72" (246.89mm)	-0.67" (-17.02mm)	48th Driest	Driest since: 1989	1934
Jun 1990–Jan 1991 8-Month	9.05" (229.87mm)	9.72" (246.89mm)	-0.67" (-17.02mm)	81st Wettest	Wettest since: 1990	1999
May 1990–Jan 1991 9-Month	10.82" (274.83mm)	11.92" (302.77mm)	-1.10" (-27.94mm)	45th Driest	Driest since: 1989	1901
May 1990–Jan 1991 9-Month	10.82" (274.83mm)	11.92" (302.77mm)	-1.10" (-27.94mm)	84th Wettest	Wettest since: 1990	1909
Apr 1990–Jan 1991 10-Month	12.87" (326.90mm)	13.72" (348.49mm)	-0.85" (-21.59mm)	51st Driest	Driest since: 1990	1955
Apr 1990–Jan 1991 10-Month	12.87" (326.90mm)	13.72" (348.49mm)	-0.85" (-21.59mm)	78th Wettest	Wettest since: 1987	1942
Mar 1990–Jan 1991 11-Month	14.31" (363.47mm)	14.97" (380.24mm)	-0.66" (-16.77mm)	51st Driest	Driest since: 1990	2013
Mar 1990–Jan 1991 11-Month	14.31" (363.47mm)	14.97" (380.24mm)	-0.66" (-16.77mm)	78th Wettest	Wettest since: 1987	1996
Feb 1990–Jan 1991 12-Month	15.00" (381.00mm)	15.93" (404.62mm)	-0.93" (-23.62mm)	44th Driest	Driest since: 1989	2013
Feb 1990–Jan 1991 12-Month	15.00" (381.00mm)	15.93" (404.62mm)	-0.93" (-23.62mm)	85th Wettest	Wettest since: 1990	1996
Aug 1989–Jan 1991 18-Month	21.57" (547.88mm)	22.54" (572.52mm)	-0.97" (-24.64mm)	52nd Driest	Driest since: 1990	1935
Aug 1989–Jan 1991 18-Month	21.57" (547.88mm)	22.54" (572.52mm)	-0.97" (-24.64mm)	76th Wettest	Wettest since: 1988	1996
Feb 1989–Jan 1991 24-Month	30.20" (767.08mm)	31.88" (809.75mm)	-1.68" (-42.67mm)	45th Driest	Driest since: 1990	2003
Feb 1989–Jan 1991 24-Month	30.20" (767.08mm)	31.88" (809.75mm)	-1.68" (-42.67mm)	83rd Wettest	Wettest since: 1988	1943
Feb 1988–Jan 1991 36-Month	41.54" (1,055.12mm)	47.78" (1,213.61mm)	-6.24" (-158.49mm)	12th Driest	Driest since: 1990	2003
Feb 1988–Jan 1991 36-Month	41.54" (1,055.12mm)	47.78" (1,213.61mm)	-6.24" (-158.49mm)	115th Wettest	Wettest since: 1989	1948
Feb 1987–Jan 1991 48-Month	56.38" (1,432.05mm)	63.65" (1,616.71mm)	-7.27" (-184.66mm)	12th Driest	Driest since: 1962	2004
Feb 1987–Jan 1991 48-Month	56.38" (1,432.05mm)	63.65" (1,616.71mm)	-7.27" (-184.66mm)	114th Wettest	Wettest since: 1990	1999
Feb 1986–Jan 1991 60-Month	74.42" (1,890.27mm)	79.51" (2,019.55mm)	-5.09" (-129.28mm)	28th Driest	Driest since: 1990	2005
Feb 1986–Jan 1991 60-Month	74.42" (1,890.27mm)	79.51" (2,019.55mm)	-5.09" (-129.28mm)	97th Wettest	Wettest since: 1988	2000

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published March 2023, retrieved on March 23, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings