Classification of italian national territory into climatic zones independent from their geographical location in order to limit the energy consumption by heating plants

The table shows for each climatic zone (A-F) the period in the year and the maximum number of hours per day when heating plants can be switched on. In caso of severe weather each municipality may permit heating in different periods. The degree-day is the unit used to assign a climatic zone to each municipality: it is the sum, extended to all days in a conventional annual heating period, of positive differences between interior temperature (conventionally fixed at 20°C) and the mean daily external temperature. As an example the table shows the climatic zones of all municipalities which are chieftown of their province: for all other 8100 italian municipalities please consult the proper page.

This subject is ruled by Decreto del Presidente della Repubblica 26/08/1993 n. 412, published in Gazzetta Ufficiale n. 242 of 14/10/1993, Supplemento Ordinario n. 96 and subsequent modifications and integrations

INFORMATION AND DOCUMENTS

REPORT

METEOMAR

FORECASTS

CHARTS

CLIMATE

OBSERVATIONS

WEBCAM

ITALIAN CLIMATIC ZONES

zone	Degrees-day	Period	Hours	Examples
A	up to 600	1 December - 15 March	6	Lampedusa, Linosa, Porto Empedocle
B	from over 600 to 900	1 December - 31 March	8	Agrigento, Catania, Crotone, Messina, Palermo, Reggio Calabria, Siracusa, Trapani
C	from over 900 to 1400	15 November - 31 March	10	Bari, Benevento, Brindisi, Cagliari, Caserta, Catanzaro, Cosenza, Imperia, Latina, Lecce, Naples, Oristano, Ragusa, Salerno, Sassari, Taranto
D	from over 1400 to 2100	1 November - 15 April	12	Ancona, Ascoli Piceno, Avellino, Caltanissetta, Chieti, Florence, Foggia, Forli', Genoa, Grosseto, Isernia, La Spezia, Leghorn, Lucca, Macerata, Massa, Carrara, Matera, Nuoro, Pesaro, Pesaro, Pescara, Pisa, Pistoia, Prato, Rome, Savona, Siena, Teramo, Terni, Verona, Vibo Valentia, Viterbo
E	from over 2100 to 3000	15 October - 15 April	14	Alessandria, Aosta, Arezzo, Asti, Bergamo, Biella, Bologna, Bolzano, Brescia, Campobasso, Como, Cremona, Enna, Ferrara, Cesena, Frosinone, Gorizia, L'Aquila, Lecco, Lodi, Mantova, Milan, Modena, Novara, Padova, Parma, Pavia, Perugia, Piacenza, Pordenone, Potenza, Ravenna, Reggio Emilia, Rieti, Rimini, Rovigo, Sondrio, Torino, Trento, Treviso, Trieste, Udine, Varese, Venice, Verbania, Vercelli, Vicenza
F	over 3000	No limitation	24	Belluno, Cuneo

CLIMATIC ZONES OF ALL 8100 ITALIAN MUNICIPALITIES