wow Jenn, I can't believe no one has posted a response to this! For me it depends on air temperature. I have exercise induced asthma that is made worse by cold air, so if the temps are below 45 & the wind is at, say 10 or above, I don't ride.

However, this time of year, I will go out if the wind is blowing 13 - 16 mph with gusts to 25. It's not necessarily fun, but I will go. The only thing to worry about around here this time of year is the thick clouds of pollen! aaaaaaaachooooooooooo!