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.
Most buttercream icings made with butter and egg whites or egg substitutes -- called meringue buttercreams â perform best at room temperature. They can be kept out for up to three days â either in a bowl or on a cake -- covered or in a cool, dry place. Butter begins to separate at temperatures between 88 and 98 degrees Fahrenheit. This is not a health concern, but on a hot day, your buttercream can slide off the cake if the fat separates from the whey.