"We'd be very surprised, very surprised, if this didn't turn out overall as a warm summer," Chris Scott, the Weather Network's chief meteorologist, said in an interview.
In the emergency order, the commonwealth’s department of health said it had recorded 549 cases of the disease this year so far, a 140 per cent increase over the same period a year ago.
Researchers say the coquí frogs appear to be decreasing in size at warmer temperatures, which causes their croaks to become high-pitched. If the trends continue, the heat could become too much for the sensitive amphibians to survive successfully.