Counties in Ohio by annual precipitation

Brown County had the highest annual precipitation of 88 counties in 2015, at 51.81 inches. Fulton County had the lowest, at 35.46 inches. The median was 42.47 inches and the figure for Ohio was 43.01 inches. Source: NOAA National Centers for Environmental Information.

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Highest51.81Brown County
Lowest35.46Fulton County
Median42.4788 counties
Ohio43.01History

Map of counties, 2015

Adams County: 50.32 inchesAllen County: 49.26 inchesAshland County: 39.34 inchesAshtabula County: 40.76 inchesAthens County: 45.94 inchesAuglaize County: 49 inchesBelmont County: 46.18 inchesBrown County: 51.81 inchesButler County: 47.73 inchesCarroll County: 39.48 inchesChampaign County: 44.39 inchesClark County: 46.39 inchesClermont County: 49.25 inchesClinton County: 48.66 inchesColumbiana County: 41.79 inchesCoshocton County: 40.89 inchesCrawford County: 39.85 inchesCuyahoga County: 39.56 inchesDarke County: 44.13 inchesDefiance County: 38.31 inchesDelaware County: 43.83 inchesErie County: 38.07 inchesFairfield County: 41.52 inchesFayette County: 42.47 inchesFranklin County: 44.57 inchesFulton County: 35.46 inchesGallia County: 47.47 inchesGeauga County: 42.28 inchesGreene County: 47.48 inchesGuernsey County: 41.57 inchesHamilton County: 48.35 inchesHancock County: 37.87 inchesHardin County: 39.41 inchesHarrison County: 42.29 inchesHenry County: 38.89 inchesHighland County: 50.07 inchesHocking County: 42.55 inchesHolmes County: 40.43 inchesHuron County: 40.32 inchesJackson County: 48.21 inchesJefferson County: 43.95 inchesKnox County: 42.16 inchesLake County: 39.4 inchesLawrence County: 46.02 inchesLicking County: 42.48 inchesLogan County: 44.95 inchesLorain County: 37.95 inchesLucas County: 36.91 inchesMadison County: 42.33 inchesMahoning County: 43.2 inchesMarion County: 36.87 inchesMedina County: 38.75 inchesMeigs County: 48.62 inchesMercer County: 46.81 inchesMiami County: 42.75 inchesMonroe County: 46.46 inchesMontgomery County: 44.72 inchesMorgan County: 42.81 inchesMorrow County: 42.22 inchesMuskingum County: 41.21 inchesNoble County: 42.36 inchesOttawa County: 38.4 inchesPaulding County: 44.04 inchesPerry County: 42.71 inchesPickaway County: 39.39 inchesPike County: 46.44 inchesPortage County: 41.09 inchesPreble County: 46.04 inchesPutnam County: 44.53 inchesRichland County: 41.28 inchesRoss County: 43.29 inchesSandusky County: 39.79 inchesScioto County: 43.79 inchesSeneca County: 40.65 inchesShelby County: 46.49 inchesStark County: 40.2 inchesSummit County: 39.24 inchesTrumbull County: 44.24 inchesTuscarawas County: 38.19 inchesUnion County: 40.01 inchesVan Wert County: 50.74 inchesVinton County: 47.02 inchesWarren County: 48.17 inchesWashington County: 43.39 inchesWayne County: 39.23 inchesWilliams County: 36.61 inchesWood County: 38.44 inchesWyandot County: 35.58 inches
  • Under 39
  • 39 to 41
  • 41 to 42
  • 42 to 44
  • 44 to 47
  • 47 and over
inches, 2015. Source: NOAA NCEI, NOAA Climate at a Glance, January to December precipitation, counties. Boundaries: U.S. Census Bureau cartographic boundary files.

Top 40 counties, 2015

Brown County: 51.81 inchesBrown County51.81Van Wert County: 50.74 inchesVan Wert County50.74Adams County: 50.32 inchesAdams County50.32Highland County: 50.07 inchesHighland County50.07Allen County: 49.26 inchesAllen County49.26Clermont County: 49.25 inchesClermont County49.25Auglaize County: 49 inchesAuglaize County49Clinton County: 48.66 inchesClinton County48.66Meigs County: 48.62 inchesMeigs County48.62Hamilton County: 48.35 inchesHamilton County48.35Jackson County: 48.21 inchesJackson County48.21Warren County: 48.17 inchesWarren County48.17Butler County: 47.73 inchesButler County47.73Greene County: 47.48 inchesGreene County47.48Gallia County: 47.47 inchesGallia County47.47Vinton County: 47.02 inchesVinton County47.02Mercer County: 46.81 inchesMercer County46.81Shelby County: 46.49 inchesShelby County46.49Monroe County: 46.46 inchesMonroe County46.46Pike County: 46.44 inchesPike County46.44Clark County: 46.39 inchesClark County46.39Belmont County: 46.18 inchesBelmont County46.18Preble County: 46.04 inchesPreble County46.04Lawrence County: 46.02 inchesLawrence County46.02Athens County: 45.94 inchesAthens County45.94Logan County: 44.95 inchesLogan County44.95Montgomery County: 44.72 inchesMontgomery County44.72Franklin County: 44.57 inchesFranklin County44.57Putnam County: 44.53 inchesPutnam County44.53Champaign County: 44.39 inchesChampaign County44.39Trumbull County: 44.24 inchesTrumbull County44.24Darke County: 44.13 inchesDarke County44.13Paulding County: 44.04 inchesPaulding County44.04Jefferson County: 43.95 inchesJefferson County43.95Delaware County: 43.83 inchesDelaware County43.83Scioto County: 43.79 inchesScioto County43.79Washington County: 43.39 inchesWashington County43.39Ross County: 43.29 inchesRoss County43.29Mahoning County: 43.2 inchesMahoning County43.2Morgan County: 42.81 inchesMorgan County42.81Brown County: 51.81 inchesBrown County51.81Van Wert County: 50.74 inchesVan Wert County50.74Adams County: 50.32 inchesAdams County50.32Highland County: 50.07 inchesHighland County50.07Allen County: 49.26 inchesAllen County49.26Clermont County: 49.25 inchesClermont County49.25Auglaize County: 49 inchesAuglaize County49Clinton County: 48.66 inchesClinton County48.66Meigs County: 48.62 inchesMeigs County48.62Hamilton County: 48.35 inchesHamilton County48.35Jackson County: 48.21 inchesJackson County48.21Warren County: 48.17 inchesWarren County48.17Butler County: 47.73 inchesButler County47.73Greene County: 47.48 inchesGreene County47.48Gallia County: 47.47 inchesGallia County47.47Vinton County: 47.02 inchesVinton County47.02Mercer County: 46.81 inchesMercer County46.81Shelby County: 46.49 inchesShelby County46.49Monroe County: 46.46 inchesMonroe County46.46Pike County: 46.44 inchesPike County46.44Clark County: 46.39 inchesClark County46.39Belmont County: 46.18 inchesBelmont County46.18Preble County: 46.04 inchesPreble County46.04Lawrence County: 46.02 inchesLawrence County46.02Athens County: 45.94 inchesAthens County45.94Logan County: 44.95 inchesLogan County44.95Montgomery County: 44.72 inchesMontgomery County44.72Franklin County: 44.57 inchesFranklin County44.57Putnam County: 44.53 inchesPutnam County44.53Champaign County: 44.39 inchesChampaign County44.39Trumbull County: 44.24 inchesTrumbull County44.24Darke County: 44.13 inchesDarke County44.13Paulding County: 44.04 inchesPaulding County44.04Jefferson County: 43.95 inchesJefferson County43.95Delaware County: 43.83 inchesDelaware County43.83Scioto County: 43.79 inchesScioto County43.79Washington County: 43.39 inchesWashington County43.39Ross County: 43.29 inchesRoss County43.29Mahoning County: 43.2 inchesMahoning County43.2Morgan County: 42.81 inchesMorgan County42.81
inches. Source: NOAA NCEI, NOAA Climate at a Glance, January to December precipitation, counties. Retrieved 2026-10-12.

Full ranking

RankCounties2015
inches
Change on 2014
1Brown County51.81+23.6%
2Van Wert County50.74+31.9%
3Adams County50.32+20.5%
4Highland County50.07+22.6%
5Allen County49.26+29.2%
6Clermont County49.25+22.4%
7Auglaize County49+24.7%
8Clinton County48.66+16.7%
9Meigs County48.62+25.9%
10Hamilton County48.35+20.9%
11Jackson County48.21+25.3%
12Warren County48.17+13.9%
13Butler County47.73+14.7%
14Greene County47.48+16.6%
15Gallia County47.47+18.3%
16Vinton County47.02+25.8%
17Mercer County46.81+19.9%
18Shelby County46.49+22.2%
19Monroe County46.46+17.4%
20Pike County46.44+23.6%
21Clark County46.39+16.6%
22Belmont County46.18+22.9%
23Preble County46.04+11.5%
24Lawrence County46.02+12.5%
25Athens County45.94+27.2%
26Logan County44.95+18.6%
27Montgomery County44.72+13.9%
28Franklin County44.57+12%
29Putnam County44.53+26.7%
30Champaign County44.39+14.6%
31Trumbull County44.24+4.4%
32Darke County44.13+13.5%
33Paulding County44.04+27.5%
34Jefferson County43.95+14.5%
35Delaware County43.83+6%
36Scioto County43.79+18.1%
37Washington County43.39+12%
38Ross County43.29+20.7%
39Mahoning County43.2+10.2%
40Morgan County42.81+8.9%
41Miami County42.75+12.3%
42Perry County42.71+4.3%
43Hocking County42.55+14.5%
44Licking County42.48-2.4%
45Fayette County42.47+17.7%
46Noble County42.36+6.5%
47Madison County42.33+12.9%
48Harrison County42.29+7.1%
49Geauga County42.28-6.6%
50Morrow County42.22+9.9%
51Knox County42.16+0.6%
52Columbiana County41.79+6.4%
53Guernsey County41.57+3.1%
54Fairfield County41.52+9%
55Richland County41.28+10.6%
56Muskingum County41.210%
57Portage County41.09-3.3%
58Coshocton County40.89-6.9%
59Ashtabula County40.76-10.3%
60Seneca County40.65+21.7%
61Holmes County40.43-4.6%
62Huron County40.32+5.9%
63Stark County40.2-6.1%
64Union County40.01+6.1%
65Crawford County39.85+13%
66Sandusky County39.79+23.8%
67Cuyahoga County39.56-2.4%
68Carroll County39.48-3.1%
69Hardin County39.41+18.8%
70Lake County39.4-9.4%
71Pickaway County39.39+16.4%
72Ashland County39.34+5.2%
73Summit County39.24-1.7%
74Wayne County39.23+1.9%
75Henry County38.89+16.9%
76Medina County38.75-0.3%
77Wood County38.44+21.4%
78Ottawa County38.4+23.4%
79Defiance County38.31+14.8%
80Tuscarawas County38.19-8.3%
81Erie County38.07+6.3%
82Lorain County37.95-4.2%
83Hancock County37.87+21.1%
84Lucas County36.91+19.1%
85Marion County36.87+18.1%
86Williams County36.61+12.7%
87Wyandot County35.58+17.3%
88Fulton County35.46+15.3%

Other periods

About this ranking

Total precipitation from January to December, in inches: rain plus the water content of snow and other frozen precipitation. NOAA computes it from its climate divisional dataset (nClimDiv): station readings interpolated onto a 5 km grid and averaged over the area.

Values are area averages, not the reading at one weather station. NOAA revises the last two years every month.

Every value in the ranking comes from the same publisher and the same period, so the counties are compared on one definition. Equal values share a rank.

How to cite

NOAA National Centers for Environmental Information, Climate at a Glance. NOAA Climate at a Glance, January to December precipitation, counties. From the NOAA Monthly U.S. Climate Divisional Database (nClimDiv), doi:10.7289/V5M32STR. https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/county/mapping. Retrieved 2026-10-12.

Citation styles

The publisher is the author. Invokely is named only as the place the figures were read, where a style asks for it.

APA 7

NOAA National Centers for Environmental Information. (2026). NOAA Climate at a Glance, January to December precipitation, counties (Counties in Ohio by annual precipitation, 2015) [Data set]. Retrieved October 12, 2026, from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/county/mapping

MLA 9

NOAA Climate at a Glance, January to December precipitation, counties, Counties in Ohio by annual precipitation, 2015. NOAA National Centers for Environmental Information, 6 Oct. 2026, https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/county/mapping. Invokely, https://invokely.ai/rankings/annual-precipitation/ohio-counties?period=2015. Accessed 12 Oct. 2026.

Chicago (author-date)

NOAA National Centers for Environmental Information. 2026. NOAA Climate at a Glance, January to December precipitation, counties. Counties in Ohio by annual precipitation, 2015. Dataset. Accessed October 12, 2026. https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/county/mapping. Also distributed by Invokely, https://invokely.ai/rankings/annual-precipitation/ohio-counties?period=2015.

Harvard

NOAA National Centers for Environmental Information (2026) NOAA Climate at a Glance, January to December precipitation, counties, Counties in Ohio by annual precipitation, 2015 [Dataset]. Available at: https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/county/mapping, via Invokely: https://invokely.ai/rankings/annual-precipitation/ohio-counties?period=2015 (Accessed: 12 October 2026).

BibTeX
@misc{noaa_counties_in_ohio_by_2015,
  author = {{NOAA National Centers for Environmental Information}},
  title = {{NOAA Climate at a Glance, January to December precipitation, counties: Counties in Ohio by annual precipitation, 2015}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/county/mapping},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/annual-precipitation/ohio-counties?period=2015. Publisher attribution: NOAA National Centers for Environmental Information, Climate at a Glance. NOAA Climate at a Glance, January to December precipitation, counties. From the NOAA Monthly U.S. Climate Divisional Database (nClimDiv), doi:10.7289/V5M32STR. https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/county/mapping. Retrieved 2026-10-12.},
}
RIS
TY  - DATA
AU  - NOAA National Centers for Environmental Information
TI  - NOAA Climate at a Glance, January to December precipitation, counties: Counties in Ohio by annual precipitation, 2015
PY  - 2026
DA  - 2026/10/06
PB  - NOAA National Centers for Environmental Information
DB  - Invokely
UR  - https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/county/mapping
L2  - https://invokely.ai/rankings/annual-precipitation/ohio-counties?period=2015
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/annual-precipitation/ohio-counties?period=2015.
N1  - Publisher attribution: NOAA National Centers for Environmental Information, Climate at a Glance. NOAA Climate at a Glance, January to December precipitation, counties. From the NOAA Monthly U.S. Climate Divisional Database (nClimDiv), doi:10.7289/V5M32STR. https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/county/mapping. Retrieved 2026-10-12.
ER  - 
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Rank Counties in Ohio by annual precipitation using official data, and cite the source.
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Questions

Which county has the highest annual precipitation?

Brown County, with 51.81 inches in 2015, according to NOAA National Centers for Environmental Information.

Which county has the lowest annual precipitation?

Fulton County, with 35.46 inches in 2015.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: NOAA National Centers for Environmental Information, NOAA Climate at a Glance, January to December precipitation, counties. Retrieved 2026-10-12.

Annual precipitation: other rankings

Counties in Ohio: more rankings