bullet Frost risk (1 September - 1 November) in Sofia:

 

Probability (%) that no events with air temperature colder than minus 5оС  will be exceeded with in the design periods 5, 10, 15, 20, 25 and 30 years. For example, the  45% certainty for a 10-year design period means there is a 55% likelihood that the temperature will not fall below minus 5оС during a 10-year period.  It also implies that there is a 55% risk that the temperature of minus 5оС  will be exceed one or more times within a 10-year period

 

 

 
bullet

Air temperature and precipitation in Sofia - 2006/2007 and normals:

 

 

 

 

 

bullet

Frost risk (1 April - 31 May) in Sofia:

Probability (%) that no events with air temperature colder than minus 4оС  will be exceeded with in the design periods 5, 10, 15, 20, 25 and 30 years. For example, the  54% certainty for a 10-year design period means there is a 46% likelihood that the temperature will not fall below minus 4оС during a 10-year period.  It also implies that there is a 46% risk that the temperature of minus 4оС  will be exceed one or more times within a 10-year period

 

bullet

Monthly normals of the number days with fog, thunderstorm, hail and snowfall in Sofia: