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, August 1928

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PeriodValue1901-2000
Mean		AnomalyRank
(1895-2022)		Wettest/Driest
Since		Record
August 1928
1-Month		4.40"
(111.76mm)		3.67"
(93.22mm)		0.73"
(18.54mm)		100th Driest
Driest since:
1953
29th Wettest
Wettest since:
1915
Jul–Aug 1928
2-Month		8.06"
(204.72mm)		7.67"
(194.82mm)		0.39"
(9.90mm)		75th Driest
Driest since:
1930
54th Wettest
Wettest since:
1915
Jun–Aug 1928
3-Month		17.07"
(433.58mm)		11.92"
(302.77mm)		5.15"
(130.81mm)		126th Driest
Driest since:
1930
3rd Wettest
Wettest to Date
1958
May–Aug 1928
4-Month		20.06"
(509.52mm)		16.19"
(411.23mm)		3.87"
(98.29mm)		119th Driest
Driest since:
1936
10th Wettest
Wettest since:
1915
Apr–Aug 1928
5-Month		24.32"
(617.73mm)		20.10"
(510.54mm)		4.22"
(107.19mm)		116th Driest
Driest since:
1930
13th Wettest
Wettest since:
2015
Mar–Aug 1928
6-Month		26.84"
(681.74mm)		23.91"
(607.31mm)		2.93"
(74.43mm)		103rd Driest
Driest since:
1930
26th Wettest
Wettest since:
2015
Feb–Aug 1928
7-Month		29.26"
(743.20mm)		26.58"
(675.13mm)		2.68"
(68.07mm)		92nd Driest
Driest since:
1930
37th Wettest
Wettest since:
2019
Jan–Aug 1928
8-Month		31.00"
(787.40mm)		29.63"
(752.60mm)		1.37"
(34.80mm)		75th Driest
Driest since:
1936
54th Wettest
Wettest since:
2019
Dec 1927–Aug 1928
9-Month		34.60"
(878.84mm)		32.72"
(831.09mm)		1.88"
(47.75mm)		73rd Driest
Driest since:
1936
55th Wettest
Wettest since:
2019
Nov 1927–Aug 1928
10-Month		39.32"
(998.73mm)		35.86"
(910.84mm)		3.46"
(87.89mm)		96th Driest
Driest since:
1936
32nd Wettest
Wettest since:
2019
Oct 1927–Aug 1928
11-Month		42.62"
(1,082.55mm)		38.78"
(985.01mm)		3.84"
(97.54mm)		96th Driest
Driest since:
1936
32nd Wettest
Wettest since:
2019
Sep 1927–Aug 1928
12-Month		46.09"
(1,170.69mm)		42.24"
(1,072.90mm)		3.85"
(97.79mm)		94th Driest
Driest since:
1936
34th Wettest
Wettest since:
2019
Mar 1927–Aug 1928
18-Month		76.37"
(1,939.80mm)		66.13"
(1,679.70mm)		10.24"
(260.10mm)		120th Driest
Driest since:
1931
8th Wettest
Wettest since:
2019
Sep 1926–Aug 1928
24-Month		101.13"
(2,568.70mm)		84.47"
(2,145.54mm)		16.66"
(423.16mm)		123rd Driest
Driest since:
1941
4th Wettest
Wettest to Date
2020
Sep 1925–Aug 1928
36-Month		143.58"
(3,646.93mm)		126.74"
(3,219.20mm)		16.84"
(427.73mm)		118th Driest
Driest since:
1941
8th Wettest
Wettest to Date
2020
Sep 1924–Aug 1928
48-Month		176.80"
(4,490.72mm)		168.98"
(4,292.09mm)		7.82"
(198.63mm)		89th Driest
Driest since:
1956
36th Wettest
Wettest to Date
2022
Sep 1923–Aug 1928
60-Month		220.26"
(5,594.60mm)		211.20"
(5,364.48mm)		9.06"
(230.12mm)		88th Driest
Driest since:
1934
36th Wettest
Wettest to Date
2020

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