Is this long enough to kill off bed bugs?

House has been evacuated for about 11 days. Whole house was not infested. One room has most of it & might have had a very small infestation in one other room. Power was turned off during this whole period. So there was no heat source in the whole house. During this time, the outside temp never rose above... show more House has been evacuated for about 11 days. Whole house was not infested. One room has most of it & might have had a very small infestation in one other room. Power was turned off during this whole period. So there was no heat source in the whole house.
During this time, the outside temp never rose above 40°F.
The night lows dropped to even the teens some nights.
Is this enough to kill off the infestations in the home?
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