I cannot see how a flight can be cancelled due to exceptional weather this far out.
If I iudnerstand correctly, the flight was cancelled less than 2 weeks in advance and no re-routing was offered.
You may wish to consider emailing easyJet immediately, stating
(1) they have cancelled the flight within a 2 week period of the departure
(2) they have refunded you without a request from yourself
(3) they have not offered you a re-routing
(4) you require them to pay you compensation of 250/400€ (depending on sector length.)
http://eur-lex.europa.eu/LexUriServ/...01:0007:en:PDF
If the flight was more than 2 weeks away when cancelled, then I am afraid you have no recourse under this directive.