Ashtabula
Ohio, USA
Long-term weather forecast
Long-term weather forecast

December weather forecast and climate
Ashtabula, OH

Ocean temperature

In December, the average ocean temperature in Ashtabula, Ohio, is 41.5°F (5.3°C).
Note: Swimming in 41.5°F (5.3°C) is considered dangerous. Unprotected immersion in temperatures below 50°F (10°C) causes quickly maximum intensity cold shock with hyperventilation.

Daylight

With an average of 9.2h of daylight, December has the shortest days of the year.

What is the water temperature in December in Ashtabula?

In Ashtabula, the average seawater temperature in December is 41.5°F (5.3°C). At temperatures below 50°F (10°C), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 55.4°F (13°C) is not comfortable.

What is the month with the shortest days in Ashtabula?

With an average of 9.2h of daylight, December has the shortest days of the year in Ashtabula, Ohio.

What is the average length of the day in December in Ashtabula?

The average length of the day in December in Ashtabula is 9.2h.
Average sea temperature in December - Ashtabula, OH
  • Average sea temperature in December: 41.5°F

The best month for swimming (with the highest average sea temperature) is August (75.7°F).
The coldest month (with the lowest average sea temperature) is February (32.7°F).

Average daylight in December - Ashtabula, OH
  • Average daylight in December: 9.2h

The month with the longest days is June (Average daylight: 15.2h).
The month with shortest days is December (Average daylight: 9.2h).