Subject: RE: Ironman 70.3 Raleigh : Official ThreadI've loaded max and min air temps into JMP (SAS product ), along with water temp. I ran a plot of average air temp versus observed water temp from 1/1/14 to today.
A quadratic equation to fit is:
water temp = 29.643985 + 0.5015097*average air temp + 0.0099402* (average air temp-50.9223 )^2
Running a few daily averages in there, an average air temp of 77 will keep the water to 75.
We're at 76 again today (Thursday ). We could get there.
Accuweather is saying this:
Today: 80 High, 65 Low, (average of 72.5 ) with a t-storm (that's good )
Friday: 78 High, 62 Low, (average of 70 ) with a passing shower (that's good )
Saturday: 82 High, 56 Low, (average of 69 ) nice with periods of sun (good for bike check-in! )
Geek out session over.
Attachments ---------------- air vs water temps.pdf (153KB - 22 downloads) |