Do you slow down in cool damp autumn\winter ?

Since the weather got cooler and damper this week, my avaerage speed on my commutte has gone quite dramitically - Ive been wondering why this could be:-
As an asmatic - is breathing the cooler\damper air not so good for my breathing
Or slight 'don't fancy this' few pedal strokes in the cold - brr effect
Do my miscles warm up quicker in the warmer weather...
Any other theories\thoughts
As an asmatic - is breathing the cooler\damper air not so good for my breathing
Or slight 'don't fancy this' few pedal strokes in the cold - brr effect
Do my miscles warm up quicker in the warmer weather...
Any other theories\thoughts
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Summer beast; http://i497.photobucket.com/albums/rr34 ... uff015.jpg
Carbon 456
456 lefty
Pompino
White Inbred
All your suggestions probably apply too, so the cumulative effect is really noticeable.
www.ogmorevalleywheelers.co.uk
10TT 24:36 25TT: 57:59 50TT: 2:08:11, 100TT: 4:30:05 12hr 204.... unfinished business
@mattbeedham
and when im riding im about 5mins slower over 9mile commute
think its just muscles tiring with cold weather and if you keep them warm then you have more layers on adding abit of weight.