Counties with the coldest winters in Ohio

#25. Darke County (tie)
- Winter 2024 average temperature: 35.5 degrees Fahrenheit
- Historic average summer temperature: 27.9 degrees
-- 2024 difference from historic average: +7.6 degrees
#25. Mahoning County (tie)
- Winter 2024 average temperature: 35.5 degrees Fahrenheit
- Historic average summer temperature: 26.8 degrees
-- 2024 difference from historic average: +8.7 degrees
#25. Preble County (tie)
- Winter 2024 average temperature: 35.5 degrees Fahrenheit
- Historic average summer temperature: 28.7 degrees
-- 2024 difference from historic average: +6.8 degrees
#25. Putnam County (tie)
- Winter 2024 average temperature: 35.5 degrees Fahrenheit
- Historic average summer temperature: 27.1 degrees
-- 2024 difference from historic average: +8.4 degrees
#25. Stark County (tie)
- Winter 2024 average temperature: 35.5 degrees Fahrenheit
- Historic average summer temperature: 27.4 degrees
-- 2024 difference from historic average: +8.2 degrees
#25. Trumbull County (tie)
- Winter 2024 average temperature: 35.5 degrees Fahrenheit
- Historic average summer temperature: 26.3 degrees
-- 2024 difference from historic average: +9.2 degrees
#23. Crawford County (tie)
- Winter 2024 average temperature: 35.4 degrees Fahrenheit
- Historic average summer temperature: 26.9 degrees
-- 2024 difference from historic average: +8.5 degrees
#23. Portage County (tie)
- Winter 2024 average temperature: 35.4 degrees Fahrenheit
- Historic average summer temperature: 26.4 degrees
-- 2024 difference from historic average: +9 degrees
#19. Champaign County (tie)
- Winter 2024 average temperature: 35.3 degrees Fahrenheit
- Historic average summer temperature: 28.1 degrees
-- 2024 difference from historic average: +7.2 degrees
#19. Holmes County (tie)
- Winter 2024 average temperature: 35.3 degrees Fahrenheit
- Historic average summer temperature: 27.7 degrees
-- 2024 difference from historic average: +7.6 degrees
#19. Medina County (tie)
- Winter 2024 average temperature: 35.3 degrees Fahrenheit
- Historic average summer temperature: 27.4 degrees
-- 2024 difference from historic average: +7.9 degrees
#19. Morrow County (tie)
- Winter 2024 average temperature: 35.3 degrees Fahrenheit
- Historic average summer temperature: 27.2 degrees
-- 2024 difference from historic average: +8.1 degrees
#15. Auglaize County (tie)
- Winter 2024 average temperature: 35.2 degrees Fahrenheit
- Historic average summer temperature: 27.5 degrees
-- 2024 difference from historic average: +7.7 degrees
#15. Columbiana County (tie)
- Winter 2024 average temperature: 35.2 degrees Fahrenheit
- Historic average summer temperature: 27.7 degrees
-- 2024 difference from historic average: +7.5 degrees
#15. Henry County (tie)
- Winter 2024 average temperature: 35.2 degrees Fahrenheit
- Historic average summer temperature: 26.6 degrees
-- 2024 difference from historic average: +8.7 degrees
#15. Wayne County (tie)
- Winter 2024 average temperature: 35.2 degrees Fahrenheit
- Historic average summer temperature: 27.4 degrees
-- 2024 difference from historic average: +7.8 degrees
#13. Ashtabula County (tie)
- Winter 2024 average temperature: 35.1 degrees Fahrenheit
- Historic average summer temperature: 26.0 degrees
-- 2024 difference from historic average: +9.1 degrees
#13. Shelby County (tie)
- Winter 2024 average temperature: 35.1 degrees Fahrenheit
- Historic average summer temperature: 27.7 degrees
-- 2024 difference from historic average: +7.4 degrees
#11. Huron County (tie)
- Winter 2024 average temperature: 35.0 degrees Fahrenheit
- Historic average summer temperature: 27.2 degrees
-- 2024 difference from historic average: +7.8 degrees
#11. Knox County (tie)
- Winter 2024 average temperature: 35.0 degrees Fahrenheit
- Historic average summer temperature: 27.7 degrees
-- 2024 difference from historic average: +7.4 degrees
#9. Fulton County (tie)
- Winter 2024 average temperature: 34.9 degrees Fahrenheit
- Historic average summer temperature: 25.8 degrees
-- 2024 difference from historic average: +9.1 degrees
#9. Logan County (tie)
- Winter 2024 average temperature: 34.9 degrees Fahrenheit
- Historic average summer temperature: 27.4 degrees
-- 2024 difference from historic average: +7.5 degrees
#7. Ashland County (tie)
- Winter 2024 average temperature: 34.8 degrees Fahrenheit
- Historic average summer temperature: 26.9 degrees
-- 2024 difference from historic average: +7.9 degrees
#7. Paulding County (tie)
- Winter 2024 average temperature: 34.8 degrees Fahrenheit
- Historic average summer temperature: 26.6 degrees
-- 2024 difference from historic average: +8.1 degrees
#5. Geauga County (tie)
- Winter 2024 average temperature: 34.7 degrees Fahrenheit
- Historic average summer temperature: 25.5 degrees
-- 2024 difference from historic average: +9.2 degrees
#5. Van Wert County (tie)
- Winter 2024 average temperature: 34.7 degrees Fahrenheit
- Historic average summer temperature: 27.0 degrees
-- 2024 difference from historic average: +7.8 degrees
#3. Mercer County (tie)
- Winter 2024 average temperature: 34.6 degrees Fahrenheit
- Historic average summer temperature: 27.2 degrees
-- 2024 difference from historic average: +7.3 degrees
#3. Richland County (tie)
- Winter 2024 average temperature: 34.6 degrees Fahrenheit
- Historic average summer temperature: 26.5 degrees
-- 2024 difference from historic average: +8.1 degrees
#2. Defiance County
- Winter 2024 average temperature: 34.4 degrees Fahrenheit
- Historic average summer temperature: 26.2 degrees
-- 2024 difference from historic average: +8.2 degrees
#1. Williams County
- Winter 2024 average temperature: 33.7 degrees Fahrenheit
- Historic average summer temperature: 25.3 degrees
-- 2024 difference from historic average: +8.4 degrees

This story features data reporting by Wade Zhou, writing by Andrea Vale, and is part of a series utilizing data automation across 48 states.

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