But since winter storms have pummeled Texas with power and water outages, that number has spiked to around 150 per day, the organization told CNN.
"The neglect is already there," Julie Kuenstle, Houston SPCA vice president of communications, said. "But these extreme and now deadly temperatures exacerbate the situation."
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Ten Houston SPCA investigators, with the help of local law enforcement, have been preparing for the consequences of the freeze since before temperatures fell, announcing last Saturday they'd keep a watchful eye on outdoor pets.
But even this did not prepare the organization for the volume of cases to come.
Dogs are being found abandoned and freezing
On Monday, the SPCA investigation team responded to a report of six dogs left outside an auto body shop.
One dog was dead and covered in snow, another was alive but emaciated. The five living dogs were taken to the local SPCA campus where they were immediately seen by a veterinary team, the organization said.
The area where the dogs were found registered at 18 degrees.
"These are the devastating consequences that can happen if you leave your pet outside," Kuenstle said. "Because we never see 18 degrees."
On Wednesday, the investigative team responded to reports of a senior dog abandoned outside for several days.
The water in the dog's bowl was entirely frozen, and the blankets inside his dog house were soaked, a news release said.
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The days to come will prove most challenging
The SPCA's disaster response work is just beginning.
"Now that we are warming up ... now is when our work is really going to start," Kuenstle said. "That's what usually happens with a disaster."
The SPCA, a non-profit, relies on the local community not only for its funding but also for its rescues.
"We rely on the community's eyes and ears to report animal cruelty and help us save lives," Kuenstle said.
Once temperatures rise and more community members are outside, she said she expects even more cruelty cases to be reported.
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