Droves of loyal fans donned parkas and ski hats to support the Red Sox at their 117th home opener today, where temperatures only reached the low 40s and a brutal wind cut through the Fenway Park bleachers.Despite the wintry weather, fans were thrilled to welcome the Sox home, who got a red hot start to the season on the road.“It’s wonderful, it’s a holiday,” said fan Marilyn Deedy of Princeton.