During the summer months, your kitchen tends to be warmer, and your fridge may get opened more often (think family gatherings, cold drinks, popsicles). Warm air sneaks in, and the appliance has to work harder to stay cool.
Tips:
Set your fridge closer to 37°F to compensate.
Avoid overloading the fridge—it restricts airflow.
Keep cold items like drinks and leftovers covered and placed near the back (coolest part).

Winter: Monitor for Overcooling

In colder months, especially if your fridge is in a garage or basement, external temperatures can drop significantly. This might confuse the thermostat or compressor, especially in older units or ones in unheated areas.
If you notice items freezing in the fridge (like lettuce or milk), bump the temperature up slightly toward 40°F.
Check your freezer too—if the compressor isn’t kicking on often, the temp might rise above 0°F without you realizing.

Optimal Temperature Settings for Energy Efficiency