The average annual temperature in Budapest is around 11.6 degrees Celsius (52.9 degrees Fahrenheit), according to data from the Hungarian Meteorological Service.
To estimate the number of hours when the temperature is below 0 degrees Celsius (32 degrees Fahrenheit), we can use historical temperature data from the service.
Looking at the data from the past 10 years (2012-2021), the number of hours when the temperature was below 0 degrees Celsius ranged from about 400 hours to 900 hours per year.
Therefore, we can estimate that on average, there are about 650 hours per year when the temperature is below 0 degrees Celsius in Budapest. However, it's important to note that this is just an estimate and the actual number can vary from year to year.