Massachusetts heat waves and a large working dog
Humid stretches above 90 degrees are normal in summer. A heavy dog needs a plan before the first one.

01What the state says
The Mass.gov extreme heat safety tips defines a heat wave in Massachusetts as usually three or more consecutive days above 90 degrees Fahrenheit. In a MEMA heat release, the state emergency management director urges residents never to leave children or pets alone in a closed vehicle.
The City of Cambridge heat page adds that even with the windows cracked, the interior of a car can rise to deadly levels, and that pets cannot cool themselves the way people do.
A local news report cites M.G.L. c. 140, section 174F as making it illegal to leave an animal in a motor vehicle in a way that threatens its health from extreme heat or cold (Daily Item report). Verify current penalties before relying on that detail.
02A hot-day routine
- Walk at dawn or after sunset.
- Keep shade and fresh water available all day.
- Leave the dog at home for errands that involve parking.
- Check pavement with your hand before a walk.
- Know your nearest emergency veterinarian.
03Ask how the dog copes
A good professional will say plainly how the dog handles heat and humidity. A claim that a working dog ignores the weather is a reason to keep asking questions.
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