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 1915

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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Wettest/Driest Since	Record
September 1915 1-Month	3.06" (77.72mm)	1.24" (31.50mm)	1.82" (46.22mm)	125th Driest	Driest since: 1914	1979
September 1915 1-Month	3.06" (77.72mm)	1.24" (31.50mm)	1.82" (46.22mm)	4th Wettest	Wettest to Date	1923
Aug–Sep 1915 2-Month	4.24" (107.70mm)	2.31" (58.67mm)	1.93" (49.03mm)	126th Driest	Driest since: 1914	2012
Aug–Sep 1915 2-Month	4.24" (107.70mm)	2.31" (58.67mm)	1.93" (49.03mm)	3rd Wettest	Wettest to Date	1923
Jul–Sep 1915 3-Month	5.99" (152.15mm)	3.59" (91.19mm)	2.40" (60.96mm)	124th Driest	Driest since: 1914	1964
Jul–Sep 1915 3-Month	5.99" (152.15mm)	3.59" (91.19mm)	2.40" (60.96mm)	5th Wettest	Wettest since: 1912	1923
Jun–Sep 1915 4-Month	8.74" (222.00mm)	5.43" (137.92mm)	3.31" (84.08mm)	127th Driest	Driest since: 1914	2012
Jun–Sep 1915 4-Month	8.74" (222.00mm)	5.43" (137.92mm)	3.31" (84.08mm)	2nd Wettest	Wettest to Date	1923
May–Sep 1915 5-Month	11.51" (292.35mm)	7.64" (194.06mm)	3.87" (98.29mm)	128th Driest	Driest since: 1914	1919
May–Sep 1915 5-Month	11.51" (292.35mm)	7.64" (194.06mm)	3.87" (98.29mm)	1st Wettest	Wettest to Date	1915
Apr–Sep 1915 6-Month	13.45" (341.63mm)	9.42" (239.27mm)	4.03" (102.36mm)	127th Driest	Driest since: 1914	2012
Apr–Sep 1915 6-Month	13.45" (341.63mm)	9.42" (239.27mm)	4.03" (102.36mm)	2nd Wettest	Wettest to Date	1941
Mar–Sep 1915 7-Month	14.67" (372.62mm)	10.67" (271.02mm)	4.00" (101.60mm)	127th Driest	Driest since: 1914	2012
Mar–Sep 1915 7-Month	14.67" (372.62mm)	10.67" (271.02mm)	4.00" (101.60mm)	2nd Wettest	Wettest to Date	1941
Feb–Sep 1915 8-Month	15.56" (395.22mm)	11.63" (295.40mm)	3.93" (99.82mm)	126th Driest	Driest since: 1914	2012
Feb–Sep 1915 8-Month	15.56" (395.22mm)	11.63" (295.40mm)	3.93" (99.82mm)	3rd Wettest	Wettest to Date	1945
Jan–Sep 1915 9-Month	16.47" (418.34mm)	12.70" (322.58mm)	3.77" (95.76mm)	128th Driest	Driest since: 1914	1919
	16.47" (418.34mm)	12.70" (322.58mm)	3.77" (95.76mm)	1st Wettest	Wettest to Date	1915, 1945
	Ties: 1945
Dec 1914–Sep 1915 10-Month	16.87" (428.50mm)	13.71" (348.23mm)	3.16" (80.27mm)	119th Driest	Driest since: 1914	1919
Dec 1914–Sep 1915 10-Month	16.87" (428.50mm)	13.71" (348.23mm)	3.16" (80.27mm)	9th Wettest	Wettest to Date	1923
Nov 1914–Sep 1915 11-Month	16.99" (431.55mm)	14.74" (374.40mm)	2.25" (57.15mm)	110th Driest	Driest since: 1914	1919
Nov 1914–Sep 1915 11-Month	16.99" (431.55mm)	14.74" (374.40mm)	2.25" (57.15mm)	18th Wettest	Wettest since: 1912	1923
Oct 1914–Sep 1915 12-Month	18.48" (469.39mm)	15.94" (404.88mm)	2.54" (64.51mm)	110th Driest	Driest since: 1914	1919
Oct 1914–Sep 1915 12-Month	18.48" (469.39mm)	15.94" (404.88mm)	2.54" (64.51mm)	18th Wettest	Wettest since: 1912	1995
Apr 1914–Sep 1915 18-Month	26.67" (677.42mm)	25.35" (643.89mm)	1.32" (33.53mm)	88th Driest	Driest since: 1914	2021
Apr 1914–Sep 1915 18-Month	26.67" (677.42mm)	25.35" (643.89mm)	1.32" (33.53mm)	40th Wettest	Wettest since: 1909	1945
Oct 1913–Sep 1915 24-Month	32.95" (836.93mm)	31.88" (809.75mm)	1.07" (27.18mm)	76th Driest	Driest since: 1914	2002
Oct 1913–Sep 1915 24-Month	32.95" (836.93mm)	31.88" (809.75mm)	1.07" (27.18mm)	51st Wettest	Wettest since: 1913	1998
Oct 1912–Sep 1915 36-Month	47.37" (1,203.20mm)	47.81" (1,214.37mm)	-0.44" (-11.17mm)	64th Driest	Driest since: 1913	2002
Oct 1912–Sep 1915 36-Month	47.37" (1,203.20mm)	47.81" (1,214.37mm)	-0.44" (-11.17mm)	62nd Wettest	Wettest since: 1914	1997
Oct 1911–Sep 1915 48-Month	66.52" (1,689.61mm)	63.72" (1,618.49mm)	2.80" (71.12mm)	87th Driest	Driest since: 1914	2003
Oct 1911–Sep 1915 48-Month	66.52" (1,689.61mm)	63.72" (1,618.49mm)	2.80" (71.12mm)	38th Wettest	Wettest since: 1909	1998
Oct 1910–Sep 1915 60-Month	79.16" (2,010.66mm)	79.56" (2,020.82mm)	-0.40" (-10.16mm)	64th Driest	Driest since: 1914	2004
Oct 1910–Sep 1915 60-Month	79.16" (2,010.66mm)	79.56" (2,020.82mm)	-0.40" (-10.16mm)	60th Wettest	Wettest since: 1910	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