Regional Rankings

Regional Data Info
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, January 1931

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PeriodValue1901-2000
Mean		AnomalyRank
(1895-2023)		Wettest/Driest
Since		Record
January 1931
1-Month		1.02"
(25.91mm)		3.04"
(77.22mm)		-2.02"
(-51.31mm)		3rd Driest
Driest to Date
1981
127th Wettest
Wettest since:
1937
Dec 1930–Jan 1931
2-Month		2.63"
(66.80mm)		6.14"
(155.96mm)		-3.51"
(-89.16mm)		2nd Driest
Driest to Date
1981
127th Wettest
Wettest since:
1937
Nov 1930–Jan 1931
3-Month		4.91"
(124.71mm)		9.28"
(235.71mm)		-4.37"
(-111.00mm)		4th Driest
Driest to Date
1977
125th Wettest
Wettest since:
1937
Oct 1930–Jan 1931
4-Month		7.02"
(178.31mm)		12.19"
(309.63mm)		-5.17"
(-131.32mm)		3rd Driest
Driest to Date
1964
126th Wettest
Wettest since:
1937
Sep 1930–Jan 1931
5-Month		10.33"
(262.38mm)		15.66"
(397.76mm)		-5.33"
(-135.38mm)		7th Driest
Driest since:
1964
122nd Wettest
Wettest since:
1937
Ties: 1905
Aug 1930–Jan 1931
6-Month		12.53"
(318.26mm)		19.33"
(490.98mm)		-6.80"
(-172.72mm)		5th Driest
Driest to Date
1964
124th Wettest
Wettest since:
1927
Jul 1930–Jan 1931
7-Month		13.99"
(355.35mm)		23.32"
(592.33mm)		-9.33"
(-236.98mm)		1st Driest
Driest to Date
1931
128th Wettest
Wettest since:
1916
Jun 1930–Jan 1931
8-Month		16.69"
(423.93mm)		27.57"
(700.28mm)		-10.88"
(-276.35mm)		1st Driest
Driest to Date
1931
128th Wettest
Wettest since:
1916
May 1930–Jan 1931
9-Month		19.59"
(497.59mm)		31.83"
(808.48mm)		-12.24"
(-310.89mm)		1st Driest
Driest to Date
1931
128th Wettest
Wettest since:
1916
Apr 1930–Jan 1931
10-Month		21.67"
(550.42mm)		35.74"
(907.80mm)		-14.07"
(-357.38mm)		1st Driest
Driest to Date
1931
128th Wettest
Wettest since:
2012
Mar 1930–Jan 1931
11-Month		24.02"
(610.11mm)		39.54"
(1,004.32mm)		-15.52"
(-394.21mm)		1st Driest
Driest to Date
1931
128th Wettest
Wettest since:
1974
Feb 1930–Jan 1931
12-Month		26.62"
(676.15mm)		42.22"
(1,072.39mm)		-15.60"
(-396.24mm)		1st Driest
Driest to Date
1931
128th Wettest
Wettest since:
2012
Aug 1929–Jan 1931
18-Month		47.42"
(1,204.47mm)		61.56"
(1,563.62mm)		-14.14"
(-359.15mm)		1st Driest
Driest to Date
1931
127th Wettest
Wettest since:
2020
Feb 1929–Jan 1931
24-Month		74.90"
(1,902.46mm)		84.48"
(2,145.79mm)		-9.58"
(-243.33mm)		9th Driest
Driest since:
1954
119th Wettest
Wettest since:
2020
Feb 1928–Jan 1931
36-Month		119.98"
(3,047.49mm)		126.72"
(3,218.69mm)		-6.74"
(-171.20mm)		22nd Driest
Driest since:
1955
105th Wettest
Wettest since:
2021
Feb 1927–Jan 1931
48-Month		169.43"
(4,303.52mm)		168.96"
(4,291.58mm)		0.47"
(11.94mm)		55th Driest
Driest since:
1956
71st Wettest
Wettest since:
2022
Feb 1926–Jan 1931
60-Month		216.43"
(5,497.32mm)		211.17"
(5,363.72mm)		5.26"
(133.60mm)		76th Driest
Driest since:
1957
49th Wettest
Wettest since:
2020
Ties: 1983

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