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Williams County

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Williams County Weather, Climate and Best Time to Visit

Data source：Meteostat
Update date：2025-09

Williams County year round climate

  • Spring (March–May): Average 6.3–17.0°C, cold and dry climate with occasional rainfall. Common activities: Outdoor walks, flower viewing (if available). Recommended clothing: Warm jacket, sweater, long pants.
  • Summer (June–August): Average 21.1–21.6°C, warm and dry climate with little rainfall. Common activities: Outdoor picnics, hiking. Recommended clothing: Light and breathable clothing, hat, sunglasses.
  • Autumn (September–November): Average 19.4–7.2°C, cool and dry climate with little rainfall. Common activities: Leaf viewing (if available), outdoor activities. Recommended clothing: Light jacket, long-sleeved shirt, comfortable pants.
  • Winter (December–February): Average -3.1–2.5°C, cold and dry climate with little rainfall. Common activities: Indoor activities, skiing (if snow available). Recommended clothing: Heavy coat, hat, scarf, gloves.

Williams County climatological average

Annual average temperature: approx. 11°C / Annual rainfall: approx. 41 mm / Summer humidity: 30%–40% / Rainiest month: December

Williams County monthly average temperature and precipitation

Month
Air temperature (°C)
Precipitation (mm)
January
-3.1°C
4.6
February
2.5°C
1.4
March
6.3°C
2.9
April
10.4°C
5.7
May
17°C
3.5
June
21.1°C
3.8
July
21.6°C
2.5
August
21.3°C
4
September
19.4°C
1.5
October
12.7°C
2
November
7.2°C
3.4
December
0°C
6.5

Williams County weather for the next seven days

12/21
Sunday
Partly Cloudy
-0.3°C/-5.8°C
12/22
Monday
Partly Cloudy
0.3°C/-6.6°C
12/23
Tuesday
Overcast
2°C/-0.8°C
12/24
Wednesday
Patchy rain nearby
4.2°C/-1.1°C
12/25
Thursday
Patchy rain nearby
9.7°C/4.9°C
12/26
Friday
Patchy rain nearby
15.6°C/-0.2°C
12/27
Saturday
Partly Cloudy
3.3°C/-1.9°C

Williams County Frequently Asked Questions and Useful Information for Travel

What are the snow emergency levels in Williams County?

Williams County has defined snow emergency levels to ensure public safety during winter weather. Level 1 indicates that roadways are hazardous, and drivers should proceed with extreme caution. Level 2 signifies that roadways are hazardous with blowing and drifting snow, and are also icy. During Level 2, only those who feel it is absolutely necessary should be out on the roadways, and it is recommended to contact your employer to determine if you should report to work.

What towns are in Williams County?

Williams County, Ohio is comprised of several townships and villages including Bryan, Montpelier, Pioneer, and Stryker. Each community offers its own unique local charm and points of interest for visitors.

What district is Williams County, Ohio?

Williams County, Ohio is part of the Ninth Congressional District. This district encompasses most of Northwestern Ohio and a significant portion of the southern border of Lake Erie. It is an amalgam of communities from Defiance, Erie, Fulton, Ottawa, Lucas, Sandusky, Williams, and Wood counties.

How many square miles is Williams County, Ohio?

Williams County, Ohio has a land area of 420.7 square miles. It ranks as the 53rd largest county in Ohio by total area. The county is bordered by Hillsdale County, Michigan, Henry County, Ohio, DeKalb County, Indiana, Steuben County, Indiana, Defiance County, Ohio, and Fulton County, Ohio.

What are some family-friendly activities in Williams County?

Williams County offers several enjoyable activities for families. Visitors can explore local parks, engage in seasonal events, and discover the natural beauty of the region. The county's welcoming atmosphere makes it a pleasant destination for all ages.