Regional Rankings

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Please note, Palmer Indices are not available for NWS Regions. Degree Days are not available for Great Plains, Souther Plains and Gulf Coast Rockies and Westward, River Basins, or Agricultural Belts. Palmer Drought Severity Index (PDSI), Palmer Hydrological Drought Index (PHDI), and Palmer Modified Drought Index (PMDI) are not offered for multiple-month time scales.

Ohio Valley Climate Region

Precipitation Rankings, September 1927

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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 1927 1-Month	3.47" (88.14mm)	3.47" (88.14mm)	0.00" (0.00mm)	76th Driest	Driest since: 1922	1897
September 1927 1-Month	3.47" (88.14mm)	3.47" (88.14mm)	0.00" (0.00mm)	53rd Wettest	Wettest since: 1926	1926
Aug–Sep 1927 2-Month	7.17" (182.12mm)	7.14" (181.36mm)	0.03" (0.76mm)	73rd Driest	Driest since: 1925	1897
Aug–Sep 1927 2-Month	7.17" (182.12mm)	7.14" (181.36mm)	0.03" (0.76mm)	56th Wettest	Wettest since: 1926	1926
Jul–Sep 1927 3-Month	11.13" (282.70mm)	11.14" (282.96mm)	-0.01" (-0.26mm)	65th Driest	Driest since: 1925	1953
Jul–Sep 1927 3-Month	11.13" (282.70mm)	11.14" (282.96mm)	-0.01" (-0.26mm)	64th Wettest	Wettest since: 1926	1926
Jun–Sep 1927 4-Month	15.57" (395.48mm)	15.39" (390.91mm)	0.18" (4.57mm)	66th Driest	Driest since: 1925	1953
Jun–Sep 1927 4-Month	15.57" (395.48mm)	15.39" (390.91mm)	0.18" (4.57mm)	63rd Wettest	Wettest since: 1926	1915
May–Sep 1927 5-Month	21.71" (551.43mm)	19.66" (499.36mm)	2.05" (52.07mm)	90th Driest	Driest since: 1925	1930
May–Sep 1927 5-Month	21.71" (551.43mm)	19.66" (499.36mm)	2.05" (52.07mm)	39th Wettest	Wettest since: 1926	1915
Apr–Sep 1927 6-Month	28.51" (724.15mm)	23.57" (598.68mm)	4.94" (125.47mm)	118th Driest	Driest since: 1926	1930
Apr–Sep 1927 6-Month	28.51" (724.15mm)	23.57" (598.68mm)	4.94" (125.47mm)	11th Wettest	Wettest since: 1915	2011
Mar–Sep 1927 7-Month	33.75" (857.25mm)	27.38" (695.45mm)	6.37" (161.80mm)	125th Driest	Driest since: 1926	1930
	33.75" (857.25mm)	27.38" (695.45mm)	6.37" (161.80mm)	4th Wettest	Wettest to Date	1945
	Ties: 2015
Feb–Sep 1927 8-Month	36.09" (916.69mm)	30.05" (763.27mm)	6.04" (153.42mm)	121st Driest	Driest since: 1926	1930
Feb–Sep 1927 8-Month	36.09" (916.69mm)	30.05" (763.27mm)	6.04" (153.42mm)	8th Wettest	Wettest to Date	1945
Jan–Sep 1927 9-Month	39.63" (1,006.60mm)	33.10" (840.74mm)	6.53" (165.86mm)	120th Driest	Driest since: 1926	1930
Jan–Sep 1927 9-Month	39.63" (1,006.60mm)	33.10" (840.74mm)	6.53" (165.86mm)	9th Wettest	Wettest since: 1898	1950
Dec 1926–Sep 1927 10-Month	43.61" (1,107.69mm)	36.19" (919.23mm)	7.42" (188.46mm)	120th Driest	Driest since: 1926	1930
Dec 1926–Sep 1927 10-Month	43.61" (1,107.69mm)	36.19" (919.23mm)	7.42" (188.46mm)	8th Wettest	Wettest since: 1898	1950
Nov 1926–Sep 1927 11-Month	46.96" (1,192.78mm)	39.33" (998.98mm)	7.63" (193.80mm)	119th Driest	Driest since: 1926	1930
Nov 1926–Sep 1927 11-Month	46.96" (1,192.78mm)	39.33" (998.98mm)	7.63" (193.80mm)	9th Wettest	Wettest since: 1898	2019
Oct 1926–Sep 1927 12-Month	51.70" (1,313.18mm)	42.25" (1,073.15mm)	9.45" (240.03mm)	123rd Driest	Driest since: 1926	1925
Oct 1926–Sep 1927 12-Month	51.70" (1,313.18mm)	42.25" (1,073.15mm)	9.45" (240.03mm)	5th Wettest	Wettest to Date	2019
Apr 1926–Sep 1927 18-Month	77.45" (1,967.23mm)	65.79" (1,671.07mm)	11.66" (296.16mm)	122nd Driest	Driest since: 1926	1931
Apr 1926–Sep 1927 18-Month	77.45" (1,967.23mm)	65.79" (1,671.07mm)	11.66" (296.16mm)	6th Wettest	Wettest to Date	2019
Oct 1925–Sep 1927 24-Month	96.53" (2,451.86mm)	84.47" (2,145.54mm)	12.06" (306.32mm)	117th Driest	Driest since: 1926	1941
Oct 1925–Sep 1927 24-Month	96.53" (2,451.86mm)	84.47" (2,145.54mm)	12.06" (306.32mm)	10th Wettest	Wettest to Date	2020
Oct 1924–Sep 1927 36-Month	129.93" (3,300.22mm)	126.72" (3,218.69mm)	3.21" (81.53mm)	70th Driest	Driest since: 1926	1941
Oct 1924–Sep 1927 36-Month	129.93" (3,300.22mm)	126.72" (3,218.69mm)	3.21" (81.53mm)	56th Wettest	Wettest since: 1924	2020
Oct 1923–Sep 1927 48-Month	174.15" (4,423.41mm)	168.99" (4,292.35mm)	5.16" (131.06mm)	78th Driest	Driest since: 1926	1956
Oct 1923–Sep 1927 48-Month	174.15" (4,423.41mm)	168.99" (4,292.35mm)	5.16" (131.06mm)	47th Wettest	Wettest since: 1923	2021
Oct 1922–Sep 1927 60-Month	217.60" (5,527.04mm)	211.21" (5,364.73mm)	6.39" (162.31mm)	79th Driest	Driest since: 1926	1956
Oct 1922–Sep 1927 60-Month	217.60" (5,527.04mm)	211.21" (5,364.73mm)	6.39" (162.31mm)	45th Wettest	Wettest since: 1924	2020

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Regional Rankings, published May 2023, retrieved on May 28, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/regional/rankings