Regional Rankings

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Please note, Palmer Indices are not available for NWS Regions. 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, August 1931

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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Wettest/Driest Since	Record
August 1931 1-Month	4.89" (124.21mm)	3.67" (93.22mm)	1.22" (30.99mm)	117th Driest	Driest since: 1930	1953
August 1931 1-Month	4.89" (124.21mm)	3.67" (93.22mm)	1.22" (30.99mm)	12th Wettest	Wettest since: 1926	1915
Jul–Aug 1931 2-Month	8.60" (218.44mm)	7.67" (194.82mm)	0.93" (23.62mm)	96th Driest	Driest since: 1930	1930
Jul–Aug 1931 2-Month	8.60" (218.44mm)	7.67" (194.82mm)	0.93" (23.62mm)	33rd Wettest	Wettest since: 1926	1915
Jun–Aug 1931 3-Month	11.53" (292.86mm)	11.92" (302.77mm)	-0.39" (-9.91mm)	43rd Driest	Driest since: 1930	1930
Jun–Aug 1931 3-Month	11.53" (292.86mm)	11.92" (302.77mm)	-0.39" (-9.91mm)	86th Wettest	Wettest since: 1929	1958
May–Aug 1931 4-Month	15.17" (385.32mm)	16.19" (411.23mm)	-1.02" (-25.91mm)	40th Driest	Driest since: 1930	1936
May–Aug 1931 4-Month	15.17" (385.32mm)	16.19" (411.23mm)	-1.02" (-25.91mm)	89th Wettest	Wettest since: 1929	1915
Apr–Aug 1931 5-Month	18.63" (473.20mm)	20.10" (510.54mm)	-1.47" (-37.34mm)	34th Driest	Driest since: 1930	1930
Apr–Aug 1931 5-Month	18.63" (473.20mm)	20.10" (510.54mm)	-1.47" (-37.34mm)	95th Wettest	Wettest since: 1929	2015
Mar–Aug 1931 6-Month	21.81" (553.97mm)	23.91" (607.31mm)	-2.10" (-53.34mm)	31st Driest	Driest since: 1930	1930
Mar–Aug 1931 6-Month	21.81" (553.97mm)	23.91" (607.31mm)	-2.10" (-53.34mm)	98th Wettest	Wettest since: 1929	2015
Feb–Aug 1931 7-Month	24.25" (615.95mm)	26.58" (675.13mm)	-2.33" (-59.18mm)	29th Driest	Driest since: 1930	1930
Feb–Aug 1931 7-Month	24.25" (615.95mm)	26.58" (675.13mm)	-2.33" (-59.18mm)	100th Wettest	Wettest since: 1929	2019
Jan–Aug 1931 8-Month	25.27" (641.86mm)	29.63" (752.60mm)	-4.36" (-110.74mm)	13th Driest	Driest since: 1930	1936
Jan–Aug 1931 8-Month	25.27" (641.86mm)	29.63" (752.60mm)	-4.36" (-110.74mm)	116th Wettest	Wettest since: 1929	2019
Dec 1930–Aug 1931 9-Month	26.88" (682.75mm)	32.72" (831.09mm)	-5.84" (-148.34mm)	10th Driest	Driest since: 1930	1936
Dec 1930–Aug 1931 9-Month	26.88" (682.75mm)	32.72" (831.09mm)	-5.84" (-148.34mm)	118th Wettest	Wettest since: 1929	2019
Nov 1930–Aug 1931 10-Month	29.16" (740.66mm)	35.86" (910.84mm)	-6.70" (-170.18mm)	8th Driest	Driest since: 1930	1936
Nov 1930–Aug 1931 10-Month	29.16" (740.66mm)	35.86" (910.84mm)	-6.70" (-170.18mm)	120th Wettest	Wettest since: 1929	2019
Oct 1930–Aug 1931 11-Month	31.27" (794.26mm)	38.78" (985.01mm)	-7.51" (-190.75mm)	6th Driest	Driest since: 1930	1936
Oct 1930–Aug 1931 11-Month	31.27" (794.26mm)	38.78" (985.01mm)	-7.51" (-190.75mm)	122nd Wettest	Wettest since: 1929	2019
Sep 1930–Aug 1931 12-Month	34.58" (878.33mm)	42.24" (1,072.90mm)	-7.66" (-194.57mm)	10th Driest	Driest since: 1930	1936
Sep 1930–Aug 1931 12-Month	34.58" (878.33mm)	42.24" (1,072.90mm)	-7.66" (-194.57mm)	118th Wettest	Wettest since: 1929	2019
Mar 1930–Aug 1931 18-Month	48.27" (1,226.06mm)	66.13" (1,679.70mm)	-17.86" (-453.64mm)	1st Driest	Driest since: 1931	1931
Mar 1930–Aug 1931 18-Month	48.27" (1,226.06mm)	66.13" (1,679.70mm)	-17.86" (-453.64mm)	127th Wettest	Wettest since: 1930	2019
Sep 1929–Aug 1931 24-Month	69.08" (1,754.63mm)	84.47" (2,145.54mm)	-15.39" (-390.91mm)	3rd Driest	Driest since: 1931	1941
Sep 1929–Aug 1931 24-Month	69.08" (1,754.63mm)	84.47" (2,145.54mm)	-15.39" (-390.91mm)	124th Wettest	Wettest since: 1930	2020
Sep 1928–Aug 1931 36-Month	114.97" (2,920.24mm)	126.74" (3,219.20mm)	-11.77" (-298.96mm)	11th Driest	Driest since: 1902	1941
Sep 1928–Aug 1931 36-Month	114.97" (2,920.24mm)	126.74" (3,219.20mm)	-11.77" (-298.96mm)	115th Wettest	Wettest since: 1930	2020
Sep 1927–Aug 1931 48-Month	161.06" (4,090.92mm)	168.98" (4,292.09mm)	-7.92" (-201.17mm)	20th Driest	Driest since: 1904	1956
Sep 1927–Aug 1931 48-Month	161.06" (4,090.92mm)	168.98" (4,292.09mm)	-7.92" (-201.17mm)	105th Wettest	Wettest since: 1930	2022
Sep 1926–Aug 1931 60-Month	216.10" (5,488.94mm)	211.20" (5,364.48mm)	4.90" (124.46mm)	71st Driest	Driest since: 1926	1934
Sep 1926–Aug 1931 60-Month	216.10" (5,488.94mm)	211.20" (5,364.48mm)	4.90" (124.46mm)	53rd Wettest	Wettest since: 1930	2020

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Regional Rankings, published November 2022, retrieved on November 30, 2022 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/regional/rankings