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, November 2017

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Period Value 1901-2000
Mean		 Anomaly Rank
(1895-2022)		 Wettest/Driest
Since		 Record
November 2017
1-Month 		2.67"
(67.82mm)		 3.13"
(79.50mm)		 -0.46"
(-11.68mm)		 51st Driest
Driest since:
 1904
78th Wettest
Wettest since:
 1985
Oct–Nov 2017
2-Month 		7.19"
(182.63mm)		 6.03"
(153.16mm)		 1.16"
(29.47mm)		 95th Driest
Driest since:
 1904
34th Wettest
Wettest since:
 1919
Sep–Nov 2017
3-Month 		9.36"
(237.74mm)		 9.50"
(241.30mm)		 -0.14"
(-3.56mm)		 58th Driest
Driest since:
 1953
71st Wettest
Wettest since:
 1926
Aug–Nov 2017
4-Month 		13.02"
(330.71mm)		 13.17"
(334.52mm)		 -0.15"
(-3.81mm)		 58th Driest
Driest since:
 1953
71st Wettest
Wettest since:
 1926
Jul–Nov 2017
5-Month 		18.01"
(457.45mm)		 17.16"
(435.86mm)		 0.85"
(21.59mm)		 76th Driest
Driest since:
 1953
53rd Wettest
Wettest since:
 1926
Jun–Nov 2017
6-Month 		22.29"
(566.17mm)		 21.42"
(544.07mm)		 0.87"
(22.10mm)		 66th Driest
Driest since:
 1953
63rd Wettest
Wettest since:
 1926
May–Nov 2017
7-Month 		28.16"
(715.26mm)		 25.68"
(652.27mm)		 2.48"
(62.99mm)		 86th Driest
Driest since:
 1953
43rd Wettest
Wettest since:
 1915
Apr–Nov 2017
8-Month 		34.48"
(875.79mm)		 29.60"
(751.84mm)		 4.88"
(123.95mm)		 113th Driest
Driest since:
 1930
16th Wettest
Wettest since:
 2011
Ties: 1915
Mar–Nov 2017
9-Month 		38.79"
(985.27mm)		 33.41"
(848.61mm)		 5.38"
(136.66mm)		 113th Driest
Driest since:
 1930
16th Wettest
Wettest since:
 2011
Feb–Nov 2017
10-Month 		40.20"
(1,021.08mm)		 36.08"
(916.43mm)		 4.12"
(104.65mm)		 102nd Driest
Driest since:
 1930
27th Wettest
Wettest since:
 2011
Jan–Nov 2017
11-Month 		43.47"
(1,104.14mm)		 39.12"
(993.65mm)		 4.35"
(110.49mm)		 101st Driest
Driest since:
 1930
28th Wettest
Wettest since:
 2019
Dec 2016–Nov 2017
12-Month 		46.80"
(1,188.72mm)		 42.22"
(1,072.39mm)		 4.58"
(116.33mm)		 102nd Driest
Driest since:
 1901
26th Wettest
Wettest since:
 2019
Ties: 1990
Jun 2016–Nov 2017
18-Month 		69.45"
(1,764.03mm)		 63.66"
(1,616.96mm)		 5.79"
(147.07mm)		 104th Driest
Driest since:
 1953
24th Wettest
Wettest since:
 2019
Dec 2015–Nov 2017
24-Month 		92.36"
(2,345.94mm)		 84.44"
(2,144.78mm)		 7.92"
(201.16mm)		 102nd Driest
Driest since:
 1931
25th Wettest
Wettest since:
 2019
Dec 2014–Nov 2017
36-Month 		140.74"
(3,574.80mm)		 126.67"
(3,217.42mm)		 14.07"
(357.38mm)		 112th Driest
Driest since:
 1954
14th Wettest
Wettest since:
 2020
Dec 2013–Nov 2017
48-Month 		185.48"
(4,711.19mm)		 168.94"
(4,291.08mm)		 16.54"
(420.11mm)		 114th Driest
Driest since:
 1956
11th Wettest
Wettest since:
 2020
Dec 2012–Nov 2017
60-Month 		233.26"
(5,924.80mm)		 211.17"
(5,363.72mm)		 22.09"
(561.08mm)		 116th Driest
Driest since:
 1956
8th Wettest
Wettest since:
 2021

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