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How do you calculate wind chill on a bike?(10 posts)

How do you calculate wind chill on a bike?onespeed
Jan 22, 2003 7:38 AM
This morning I left my apartment and saw on the news that it was 15 degrees. Checking on the internet I saw that with windchill it was down to about 5 degrees. I am on my bike riding into the wind and going 15-23 mph. What is the windchill while riding my bike?

The Brooklyn Bridge was cold this morning. I am trying to see how cold it can get before I wont ride in. So far this winter I have only considered not riding in. The thought of standing next to coughing people on the subway makes me want to brave the cold. If it rained I would consider taking the subway.
Cold, colder and coldest.MB1
Jan 22, 2003 7:59 AM
Actually wind chill only happens on exposed surfaces. Cover everything up with wind blocking fabric and you only have to worry about venting off the heat and moisture you build up while exercising.

For us the only exposed skin we have is a bit on our faces that we put lotion on anyway. I got to admit that I have never ridden in temps below 0-F but if we are dressed correctly for the temps wind chill is not much of a problem for us.

"There is no bad weather, just bad clothing."
This I did not know. That explains the pain. (nm)onespeed
Jan 22, 2003 8:04 AM
Just plug your speed into a chill table...Silverback
Jan 22, 2003 9:03 AM
Outdoor stores like REI sell wind-chill tables (or give them away--I got one with a jacket) with still-air temperature on one axis and wind speed on the other, and I'm sure you can find them online, too. Just use your speed for the wind speed and you'll get an approximation (won't be exact unless the air is still, but you could adjust roughly for that, too).
Wind Chill Chart...biknben
Jan 22, 2003 10:51 AM
This will get you started.

I too have been commuting (in Jersey). Temp was 14F when I arrived at work this morning. I picked up some new gloves and tights yesterday. They made things a little better this morning.
re: simple formulacyclopathic
Jan 22, 2003 11:31 AM
if it's below 15F it is temp - speed,
if it is ~32F it is temp-5 -(speed-5)/2

where temp is temp in F and speed is commulative of wind+speed. Either way it is freaking cold. On my last 40mi outdoor ride I had to get off the bike and walk several times to defrost my numb toes. Last year it was warm enough to ride a double on Jan 17, can you believe it?
shrinkage formula will workbigrider
Jan 22, 2003 12:45 PM
This equation will easily calculate wind chill.

WC = T - [{(NL-SL)/AMCL} X T]

WC- Wind Chill
T - Temperature
NL- Normal Length
SL- Shrinkage Length
AMCL-Average Male Cyclist Length (Normalizes equation)
would it be metric or standard? F or C? nmcyclopathic
Jan 22, 2003 1:47 PM
re: How do you calculate wind chill on a bike?oui19
Jan 22, 2003 7:41 PM
To calculate wind chill:

WC = 35.74 + 0.6215T - 35.75 (V 0.16) + 0.4275T (V 0.16)

V is the wind speed, T is the temperature in Fahrenheit.
re: How do you calculate wind chill on a bike?Spunout
Jan 23, 2003 4:14 AM


Link to calculator on a webpage:

You have to know your airspeed, your velocity with respect to the wind.