Translation of "Wintertime" in Japanese

I feel more tired in the wintertime.

冬は疲れる。

I suffer from depression during the wintertime.

冬になると気がふさぐ。

I always need an extra blanket in the wintertime.

いつも冬には余分な毛布が必要だ。

Were slaughtered in the wintertime, based on the pigs’ age.

冬至に解体したのだと考えています

The climate of Florida in the wintertime is milder than that of Iowa.

- 冬季のフロリダの気候はアイオワより穏和だ。
- 冬のフロリダも気候は、アイオワの気候よりも温和だ。

- I suffer from depression during the wintertime.
- I suffer from depression during the winter.

冬になると気がふさぐ。