Bucharest: Annual Weather Averages. July is the hottest month in Bucharest with an average temperature of 22Â°C (71Â°F) and the coldest is January at -2Â°C (29Â°F) with the most daily sunshine hours at 10 in August. The wettest month is June with an average of 90mm of rain. Average Temperature: Bucharest.
Buttercream frosting does not need to be refrigerated if used within two to three days. However, it keeps for up to two weeks if stored in the refrigerator in an airtight container, and it lasts up to three months if stored in the freezer. Keep Learning.
Cake will keep at room temp for up to 2 days, loosely covered. Both frosted and unfrosted cakes will keep up to 5 days in the fridge if they're tightly covered. All cakes with custard or whipped-cream filling or topping should be refrigerated. Frosted and unfrosted cakes can be frozen for up to 2 months.