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 1946

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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
September 1946 1-Month	1.77" (44.96mm)	1.24" (31.50mm)	0.53" (13.46mm)	105th Driest	Driest since: 1944	1979
September 1946 1-Month	1.77" (44.96mm)	1.24" (31.50mm)	0.53" (13.46mm)	24th Wettest	Wettest since: 1945	1923
Aug–Sep 1946 2-Month	2.93" (74.42mm)	2.31" (58.67mm)	0.62" (15.75mm)	103rd Driest	Driest since: 1944	2012
Aug–Sep 1946 2-Month	2.93" (74.42mm)	2.31" (58.67mm)	0.62" (15.75mm)	26th Wettest	Wettest since: 1945	1923
Jul–Sep 1946 3-Month	3.80" (96.52mm)	3.59" (91.19mm)	0.21" (5.33mm)	81st Driest	Driest since: 1944	1964
Jul–Sep 1946 3-Month	3.80" (96.52mm)	3.59" (91.19mm)	0.21" (5.33mm)	48th Wettest	Wettest since: 1945	1923
Jun–Sep 1946 4-Month	5.70" (144.78mm)	5.43" (137.92mm)	0.27" (6.86mm)	83rd Driest	Driest since: 1943	2012
Jun–Sep 1946 4-Month	5.70" (144.78mm)	5.43" (137.92mm)	0.27" (6.86mm)	46th Wettest	Wettest since: 1945	1923
May–Sep 1946 5-Month	8.98" (228.09mm)	7.64" (194.06mm)	1.34" (34.03mm)	101st Driest	Driest since: 1944	1919
May–Sep 1946 5-Month	8.98" (228.09mm)	7.64" (194.06mm)	1.34" (34.03mm)	28th Wettest	Wettest since: 1945	1915
Apr–Sep 1946 6-Month	9.97" (253.24mm)	9.42" (239.27mm)	0.55" (13.97mm)	85th Driest	Driest since: 1943	2012
Apr–Sep 1946 6-Month	9.97" (253.24mm)	9.42" (239.27mm)	0.55" (13.97mm)	44th Wettest	Wettest since: 1945	1941
Mar–Sep 1946 7-Month	11.92" (302.77mm)	10.67" (271.02mm)	1.25" (31.75mm)	97th Driest	Driest since: 1943	2012
Mar–Sep 1946 7-Month	11.92" (302.77mm)	10.67" (271.02mm)	1.25" (31.75mm)	32nd Wettest	Wettest since: 1945	1941
Feb–Sep 1946 8-Month	12.72" (323.09mm)	11.63" (295.40mm)	1.09" (27.69mm)	89th Driest	Driest since: 1943	2012
Feb–Sep 1946 8-Month	12.72" (323.09mm)	11.63" (295.40mm)	1.09" (27.69mm)	40th Wettest	Wettest since: 1945	1945
Jan–Sep 1946 9-Month	13.54" (343.92mm)	12.70" (322.58mm)	0.84" (21.34mm)	86th Driest	Driest since: 1943	1919
Jan–Sep 1946 9-Month	13.54" (343.92mm)	12.70" (322.58mm)	0.84" (21.34mm)	43rd Wettest	Wettest since: 1945	1915, 1945
Dec 1945–Sep 1946 10-Month	14.99" (380.75mm)	13.71" (348.23mm)	1.28" (32.52mm)	90th Driest	Driest since: 1943	1919
Dec 1945–Sep 1946 10-Month	14.99" (380.75mm)	13.71" (348.23mm)	1.28" (32.52mm)	38th Wettest	Wettest since: 1945	1923
Nov 1945–Sep 1946 11-Month	16.21" (411.73mm)	14.74" (374.40mm)	1.47" (37.33mm)	94th Driest	Driest since: 1944	1919
Nov 1945–Sep 1946 11-Month	16.21" (411.73mm)	14.74" (374.40mm)	1.47" (37.33mm)	34th Wettest	Wettest since: 1945	1923
Oct 1945–Sep 1946 12-Month	16.85" (427.99mm)	15.94" (404.88mm)	0.91" (23.11mm)	80th Driest	Driest since: 1942	1919
Oct 1945–Sep 1946 12-Month	16.85" (427.99mm)	15.94" (404.88mm)	0.91" (23.11mm)	48th Wettest	Wettest since: 1945	1995
Apr 1945–Sep 1946 18-Month	29.47" (748.54mm)	25.35" (643.89mm)	4.12" (104.65mm)	120th Driest	Driest since: 1944	2021
	29.47" (748.54mm)	25.35" (643.89mm)	4.12" (104.65mm)	8th Wettest	Wettest since: 1945	1945
	Ties: 1968
Oct 1944–Sep 1946 24-Month	36.48" (926.59mm)	31.88" (809.75mm)	4.60" (116.84mm)	120th Driest	Driest since: 1944	2002
Oct 1944–Sep 1946 24-Month	36.48" (926.59mm)	31.88" (809.75mm)	4.60" (116.84mm)	7th Wettest	Wettest since: 1945	1998
Oct 1943–Sep 1946 36-Month	54.00" (1,371.60mm)	47.81" (1,214.37mm)	6.19" (157.23mm)	117th Driest	Driest since: 1944	2002
Oct 1943–Sep 1946 36-Month	54.00" (1,371.60mm)	47.81" (1,214.37mm)	6.19" (157.23mm)	9th Wettest	Wettest since: 1945	1997
Oct 1942–Sep 1946 48-Month	71.88" (1,825.75mm)	63.72" (1,618.49mm)	8.16" (207.26mm)	121st Driest	Driest since: 1945	2003
Oct 1942–Sep 1946 48-Month	71.88" (1,825.75mm)	63.72" (1,618.49mm)	8.16" (207.26mm)	4th Wettest	Wettest to Date	1998
Oct 1941–Sep 1946 60-Month	88.04" (2,236.22mm)	79.56" (2,020.82mm)	8.48" (215.40mm)	116th Driest	Driest since: 1944	2004
Oct 1941–Sep 1946 60-Month	88.04" (2,236.22mm)	79.56" (2,020.82mm)	8.48" (215.40mm)	8th Wettest	Wettest since: 1945	1999

Citing This Page

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