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, September 1979

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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Wettest/Driest Since	Record
September 1979 1-Month	0.26" (6.60mm)	1.24" (31.50mm)	-0.98" (-24.90mm)	1st Driest	Driest since: 1979	1979
September 1979 1-Month	0.26" (6.60mm)	1.24" (31.50mm)	-0.98" (-24.90mm)	128th Wettest	Wettest since: 1978	1923
Aug–Sep 1979 2-Month	2.31" (58.67mm)	2.31" (58.67mm)	0.00" (0.00mm)	71st Driest	Driest since: 1976	2012
	2.31" (58.67mm)	2.31" (58.67mm)	0.00" (0.00mm)	58th Wettest	Wettest since: 1978	1923
	Ties: 2003
Jul–Sep 1979 3-Month	3.27" (83.06mm)	3.59" (91.19mm)	-0.32" (-8.13mm)	58th Driest	Driest since: 1975	1964
Jul–Sep 1979 3-Month	3.27" (83.06mm)	3.59" (91.19mm)	-0.32" (-8.13mm)	71st Wettest	Wettest since: 1978	1923
Jun–Sep 1979 4-Month	4.45" (113.03mm)	5.43" (137.92mm)	-0.98" (-24.89mm)	42nd Driest	Driest since: 1974	2012
	4.45" (113.03mm)	5.43" (137.92mm)	-0.98" (-24.89mm)	87th Wettest	Wettest since: 1978	1923
	Ties: 1981
May–Sep 1979 5-Month	6.22" (157.99mm)	7.64" (194.06mm)	-1.42" (-36.07mm)	29th Driest	Driest since: 1974	1919
May–Sep 1979 5-Month	6.22" (157.99mm)	7.64" (194.06mm)	-1.42" (-36.07mm)	100th Wettest	Wettest since: 1978	1915
Apr–Sep 1979 6-Month	7.23" (183.64mm)	9.42" (239.27mm)	-2.19" (-55.63mm)	22nd Driest	Driest since: 1974	2012
Apr–Sep 1979 6-Month	7.23" (183.64mm)	9.42" (239.27mm)	-2.19" (-55.63mm)	107th Wettest	Wettest since: 1978	1941
Mar–Sep 1979 7-Month	8.13" (206.50mm)	10.67" (271.02mm)	-2.54" (-64.52mm)	18th Driest	Driest since: 1960	2012
Mar–Sep 1979 7-Month	8.13" (206.50mm)	10.67" (271.02mm)	-2.54" (-64.52mm)	111th Wettest	Wettest since: 1978	1941
Feb–Sep 1979 8-Month	8.92" (226.57mm)	11.63" (295.40mm)	-2.71" (-68.83mm)	19th Driest	Driest since: 1974	2012
	8.92" (226.57mm)	11.63" (295.40mm)	-2.71" (-68.83mm)	110th Wettest	Wettest since: 1978	1945
	Ties: 1954
Jan–Sep 1979 9-Month	10.06" (255.52mm)	12.70" (322.58mm)	-2.64" (-67.06mm)	22nd Driest	Driest since: 1974	1919
Jan–Sep 1979 9-Month	10.06" (255.52mm)	12.70" (322.58mm)	-2.64" (-67.06mm)	107th Wettest	Wettest since: 1978	1915, 1945
Dec 1978–Sep 1979 10-Month	11.87" (301.50mm)	13.71" (348.23mm)	-1.84" (-46.73mm)	27th Driest	Driest since: 1974	1919
Dec 1978–Sep 1979 10-Month	11.87" (301.50mm)	13.71" (348.23mm)	-1.84" (-46.73mm)	101st Wettest	Wettest since: 1978	1923
Nov 1978–Sep 1979 11-Month	13.19" (335.03mm)	14.74" (374.40mm)	-1.55" (-39.37mm)	32nd Driest	Driest since: 1977	1919
	13.19" (335.03mm)	14.74" (374.40mm)	-1.55" (-39.37mm)	96th Wettest	Wettest since: 1978	1923
	Ties: 1969
Oct 1978–Sep 1979 12-Month	13.66" (346.96mm)	15.94" (404.88mm)	-2.28" (-57.92mm)	26th Driest	Driest since: 1977	1919
Oct 1978–Sep 1979 12-Month	13.66" (346.96mm)	15.94" (404.88mm)	-2.28" (-57.92mm)	102nd Wettest	Wettest since: 1978	1995
Apr 1978–Sep 1979 18-Month	24.98" (634.49mm)	25.35" (643.89mm)	-0.37" (-9.40mm)	59th Driest	Driest since: 1977	2021
Apr 1978–Sep 1979 18-Month	24.98" (634.49mm)	25.35" (643.89mm)	-0.37" (-9.40mm)	69th Wettest	Wettest since: 1978	1945
Oct 1977–Sep 1979 24-Month	32.06" (814.32mm)	31.88" (809.75mm)	0.18" (4.57mm)	65th Driest	Driest since: 1978	2002
	32.06" (814.32mm)	31.88" (809.75mm)	0.18" (4.57mm)	62nd Wettest	Wettest since: 1976	1998
	Ties: 1992
Oct 1976–Sep 1979 36-Month	45.27" (1,149.86mm)	47.81" (1,214.37mm)	-2.54" (-64.51mm)	35th Driest	Driest since: 1966	2002
Oct 1976–Sep 1979 36-Month	45.27" (1,149.86mm)	47.81" (1,214.37mm)	-2.54" (-64.51mm)	91st Wettest	Wettest since: 1978	1997
Oct 1975–Sep 1979 48-Month	62.35" (1,583.69mm)	63.72" (1,618.49mm)	-1.37" (-34.80mm)	54th Driest	Driest since: 1977	2003
Oct 1975–Sep 1979 48-Month	62.35" (1,583.69mm)	63.72" (1,618.49mm)	-1.37" (-34.80mm)	71st Wettest	Wettest since: 1978	1998
Oct 1974–Sep 1979 60-Month	78.39" (1,991.11mm)	79.56" (2,020.82mm)	-1.17" (-29.71mm)	55th Driest	Driest since: 1970	2004
Oct 1974–Sep 1979 60-Month	78.39" (1,991.11mm)	79.56" (2,020.82mm)	-1.17" (-29.71mm)	69th Wettest	Wettest since: 1978	1999

Citing This Page

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