Originally Posted by
RobOnLI
Except IAH is the only fully operational flight through winter (all relative). DEN, ORD, EWR and IAD are all prone to massive snow storms as we have seen this winter already. One snow storm and IAD and EWR are both shut down for days. SFO is plagued by fog a good part of the year so it's not ideal either.
To be fair, the snowstorm which shut down IAD for days was historic in its size. The typical winter weather here doesn't lead to total shutdowns, just to delays. Our winter average total snowfall is around 14 inches. When you get more than double that in a single storm... yeah, it's a mess.