Map of degree days for Tuscany
<ul><li><b>Original: </b> <a href="//commons.wikimedia.org/wiki/User:Rarelibra" title="User:Rarelibra">Rarelibra</a></li>
<li><b>Derivative work: </b> <a href="//commons.wikimedia.org/wiki/User:Carnby" title="User:Carnby">Carnby</a></li></ul>
2011-01-06 22:19
<a rel="nofollow" class="external text" href="http://clisun.casaccia.enea.it/Pagine/GradiGiorni.htm">Gradi-giorni - Archivio climatico DBT ENEA</a>, clisun.casaccia.enea.it