Air becomes denser and takes up less space as it gets colder so you will probably have to add air in the winter to bring it back up to the correct pressure . I keep to the same recommended pressures, front and rear, all year round.
You may need to top them up anyway as tyres tend to lose about 1 psi a month because air permeates through the rubber.
When warm weather returns you might need to let a bit of air out again. But in practice I normally find they have lost enough anyway through permeation. You may even need to add air.
BTW always measure when the tyres are 'cold ' ie before driving off. They warm up as you drive ,the air expands and gives a higher pressure reading. This is normal, and is allowed for. If you check your pressures after having driven for a while they will be higher than normal. Dont let air out to reduce them. If you need to drive to a garage to use the air line add a psi or two above the recommended pressure to allow for the tyres being warm.