Regional Rankings

Parameter:

Year:

Month:

Region:

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 1931

View Period (Months):

All

Download: CSV JSON XML

Record Driest

Bottom ⅒

Bottom ⅓

Normal

Top ⅓

Top ⅒

Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Wettest/Driest Since	Record
September 1931 1-Month	3.74" (95.00mm)	3.47" (88.14mm)	0.27" (6.86mm)	86th Driest	Driest since: 1930	1897
September 1931 1-Month	3.74" (95.00mm)	3.47" (88.14mm)	0.27" (6.86mm)	43rd Wettest	Wettest since: 1926	1926
Aug–Sep 1931 2-Month	8.63" (219.20mm)	7.14" (181.36mm)	1.49" (37.84mm)	109th Driest	Driest since: 1930	1897
	8.63" (219.20mm)	7.14" (181.36mm)	1.49" (37.84mm)	20th Wettest	Wettest since: 1926	1926
	Ties: 2006
Jul–Sep 1931 3-Month	12.34" (313.44mm)	11.14" (282.96mm)	1.20" (30.48mm)	96th Driest	Driest since: 1930	1953
Jul–Sep 1931 3-Month	12.34" (313.44mm)	11.14" (282.96mm)	1.20" (30.48mm)	33rd Wettest	Wettest since: 1926	1926
Jun–Sep 1931 4-Month	15.27" (387.86mm)	15.39" (390.91mm)	-0.12" (-3.05mm)	57th Driest	Driest since: 1930	1953
Jun–Sep 1931 4-Month	15.27" (387.86mm)	15.39" (390.91mm)	-0.12" (-3.05mm)	72nd Wettest	Wettest since: 1928	1915
May–Sep 1931 5-Month	18.91" (480.31mm)	19.66" (499.36mm)	-0.75" (-19.05mm)	47th Driest	Driest since: 1930	1930
May–Sep 1931 5-Month	18.91" (480.31mm)	19.66" (499.36mm)	-0.75" (-19.05mm)	82nd Wettest	Wettest since: 1929	1915
Apr–Sep 1931 6-Month	22.37" (568.20mm)	23.57" (598.68mm)	-1.20" (-30.48mm)	42nd Driest	Driest since: 1930	1930
Apr–Sep 1931 6-Month	22.37" (568.20mm)	23.57" (598.68mm)	-1.20" (-30.48mm)	87th Wettest	Wettest since: 1929	2011
Mar–Sep 1931 7-Month	25.55" (648.97mm)	27.38" (695.45mm)	-1.83" (-46.48mm)	35th Driest	Driest since: 1930	1930
Mar–Sep 1931 7-Month	25.55" (648.97mm)	27.38" (695.45mm)	-1.83" (-46.48mm)	94th Wettest	Wettest since: 1929	1945
Feb–Sep 1931 8-Month	27.99" (710.95mm)	30.05" (763.27mm)	-2.06" (-52.32mm)	34th Driest	Driest since: 1930	1930
Feb–Sep 1931 8-Month	27.99" (710.95mm)	30.05" (763.27mm)	-2.06" (-52.32mm)	95th Wettest	Wettest since: 1929	1945
Jan–Sep 1931 9-Month	29.01" (736.85mm)	33.10" (840.74mm)	-4.09" (-103.89mm)	16th Driest	Driest since: 1930	1930
	29.01" (736.85mm)	33.10" (840.74mm)	-4.09" (-103.89mm)	113th Wettest	Wettest since: 1929	1950
	Ties: 1954
Dec 1930–Sep 1931 10-Month	30.62" (777.75mm)	36.19" (919.23mm)	-5.57" (-141.48mm)	11th Driest	Driest since: 1930	1930
Dec 1930–Sep 1931 10-Month	30.62" (777.75mm)	36.19" (919.23mm)	-5.57" (-141.48mm)	117th Wettest	Wettest since: 1929	1950
Nov 1930–Sep 1931 11-Month	32.90" (835.66mm)	39.33" (998.98mm)	-6.43" (-163.32mm)	12th Driest	Driest since: 1930	1930
Nov 1930–Sep 1931 11-Month	32.90" (835.66mm)	39.33" (998.98mm)	-6.43" (-163.32mm)	116th Wettest	Wettest since: 1929	2019
Oct 1930–Sep 1931 12-Month	35.01" (889.25mm)	42.25" (1,073.15mm)	-7.24" (-183.90mm)	10th Driest	Driest since: 1930	1925
Oct 1930–Sep 1931 12-Month	35.01" (889.25mm)	42.25" (1,073.15mm)	-7.24" (-183.90mm)	118th Wettest	Wettest since: 1929	2019
Apr 1930–Sep 1931 18-Month	49.66" (1,261.36mm)	65.79" (1,671.07mm)	-16.13" (-409.71mm)	1st Driest	Driest to Date	1931
Apr 1930–Sep 1931 18-Month	49.66" (1,261.36mm)	65.79" (1,671.07mm)	-16.13" (-409.71mm)	127th Wettest	Wettest since: 1930	2019
Oct 1929–Sep 1931 24-Month	69.45" (1,764.03mm)	84.47" (2,145.54mm)	-15.02" (-381.51mm)	3rd Driest	Driest to Date	1941
Oct 1929–Sep 1931 24-Month	69.45" (1,764.03mm)	84.47" (2,145.54mm)	-15.02" (-381.51mm)	124th Wettest	Wettest since: 1930	2020
Oct 1928–Sep 1931 36-Month	116.77" (2,965.96mm)	126.72" (3,218.69mm)	-9.95" (-252.73mm)	13th Driest	Driest since: 1902	1941
Oct 1928–Sep 1931 36-Month	116.77" (2,965.96mm)	126.72" (3,218.69mm)	-9.95" (-252.73mm)	113th Wettest	Wettest since: 1930	2020
Oct 1927–Sep 1931 48-Month	161.33" (4,097.78mm)	168.99" (4,292.35mm)	-7.66" (-194.57mm)	23rd Driest	Driest since: 1904	1956
Oct 1927–Sep 1931 48-Month	161.33" (4,097.78mm)	168.99" (4,292.35mm)	-7.66" (-194.57mm)	102nd Wettest	Wettest since: 1930	2021
Oct 1926–Sep 1931 60-Month	213.03" (5,410.96mm)	211.21" (5,364.73mm)	1.82" (46.23mm)	63rd Driest	Driest since: 1926	1956
Oct 1926–Sep 1931 60-Month	213.03" (5,410.96mm)	211.21" (5,364.73mm)	1.82" (46.23mm)	61st Wettest	Wettest since: 1930	2020

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Regional Rankings, published March 2023, retrieved on March 22, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/regional/rankings