Depends on location. Around here it would merely be annoying. If there's dust storms or gravel trucks - no thanks!
Also, wind chill
http://www.nws.noaa.gov/om/winter/windchill.shtml
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Genesis 49:16-17
"Well, well!" said Holmes, impatiently. "A good cyclist does not need a high road. The moor is intersected with paths and the moon is at the full."