Tiffin, Ohio Weather
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Climate of Tiffin: monthly averages
Based on 25 years of satellite and reanalysis data (2001-2025), July is usually the hottest month in Tiffin, with average daytime highs around 29°C. January is the coolest, when nights typically fall to about -7°C and frost is possible on the coldest nights. That is a wide yearly range of roughly 36°C, so the seasons feel very different from each other.
The area receives about 950 mm of rain in a typical year. Most of it falls from May, and May is the wettest month at roughly 103 mm.
For outdoor plans and travel, June to September usually offer the most comfortable weather in Tiffin, with mild days and relatively little rain.
| Month | Avg high | Avg low | Rainfall | Humidity |
|---|---|---|---|---|
| Jan | 1° | -7° | 60 mm | 86% |
| Feb | 2° | -7° | 57 mm | 84% |
| Mar | 8° | -2° | 71 mm | 80% |
| Apr | 16° | 3° | 88 mm | 76% |
| May | 22° | 10° | 103 mm | 77% |
| Jun | 26° | 15° | 98 mm | 77% |
| Jul | 29° | 18° | 91 mm | 73% |
| Aug | 28° | 17° | 87 mm | 71% |
| Sep | 25° | 13° | 82 mm | 72% |
| Oct | 17° | 6° | 76 mm | 75% |
| Nov | 10° | 0° | 69 mm | 79% |
| Dec | 3° | -4° | 66 mm | 85% |
Source: NASA POWER (MERRA-2 reanalysis), averaged over the roughly 50 km grid area around Tiffin. Values describe typical conditions, not a forecast.
About Tiffin weather
Tiffin lies in Ohio's humid continental climate, with warm summers and cold winters typical of the Midwest — about 129 km north of Columbus. Expect warm, humid summers (June–August) with highs in the high 20s to low 30s°C. Winter brings cold winters (December–February) with regular snow, especially near Lake Erie. This page shows live, auto-refreshing weather for Tiffin: current conditions, an hourly breakdown, a 16-day outlook, a date-lookup tool for any past or future date, and real-time air quality, sourced from Open-Meteo. Local timezone: America/New_York.
Frequently asked questions
Tiffin is about 129 km north of Columbus, in Ohio.
Tiffin sees cold winters (December–February) with regular snow, especially near Lake Erie.
The live current conditions, hourly forecast and 16-day outlook above are pulled in real time for Tiffin's exact coordinates. No fixed schedule, the page updates whenever you load it.
July is usually the hottest month in Tiffin, with average daytime highs of about 29°C and nights around 18°C.
The coldest nights come in January, when the average low is about -7°C and daytime highs reach around 1°C. Frost is possible on clear, calm nights.
Tiffin receives about 950 mm of rain in a typical year. May is the wettest month at roughly 103 mm, the only month that averages more than 100 mm.
June to September usually offer the most comfortable weather in Tiffin, with mild daytime temperatures and little rain.
In November Tiffin typically sees daytime highs near 10°C and lows near 0°C, with about 69 mm of rain over the month and average humidity around 79%. Check the live forecast above for this week's actual conditions.
Up to 16 days ahead using the extended forecast and date picker above; further-out or historical dates use the same date lookup tool.
The current temperature for Tiffin updates automatically at the top of this page — scroll to the hourly strip below to see how it's expected to change over the day.
Tiffin's day-to-day weather follows the broader pattern of Ohio described above. See the hourly weather forecast or the air quality index for more detail.