Здесь нужно соотнести города с типичной для них погодой.
1. In St. Petersburg. It's often cold and windy.
2. In Moscow. It can be hot in summer and snowing in winter.
3. In Sochi. It is usually sunny and hot.
4. In Vladivostok. It is often raining and windy.
Ответ: 1. cold, windy; 2. hot, snowing; 3. sunny, hot; 4. raining, windy.