July weather forecast and climate
Tonawanda, NY US

• Average sea temperature in July: 71.1°F

The best month for swimming (with the highest average sea temperature) is August (72.9°F).
The coldest month (with the lowest average sea temperature) is March (35.7°F).

• Average daylight in July: 15h

The month with the longest days is June (Average daylight: 15.3h).
The month with shortest days is December (Average daylight: 9.1h).