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.
How to Store Cakes in the Refrigerator. 1  Store cakes with buttercream, whipped icing or stabilized whipped cream in the refrigerator in airtight containers. Cakes iced with meringue powder-based frosting, rolled fondant or fluffy boiled icing can be stored in airtight containers at room temperature.