How cold do you ride in shorts during spring?

[Blueberry]

18 degrees C = ~65 degrees F. That's HOT to people? Wow. They shouldn't move to the south of the US! In the summer, our low temperatures will be more than 25 degrees C and our highs will exceed 35 C.

I don't ride below 65 without something over my knees. I have enough cranky knee problems - I don't need to make them worse. But - if it works for you and you suffer no ill effects, great! I have ridden in knickers and a sleeveless jersey, so go figure.

[emily_in_nc]

18 degrees C = ~65 degrees F. That's HOT to people? Wow. They shouldn't move to the south of the US! In the summer, our low temperatures will be more than 25 degrees C and our highs will exceed 35 C.

Heheh, she's so right! I won't ride in shorts if the temp is below 65F (18C).

[Becky]

For me, it depends on the ride. On a road or easy-paced mountain ride, I'll cover my knees below 65 degrees. For more intense rides like this morning's mountain bike race, I'll wear shorts when it's 50 degrees +/-, especially if I know it's going to quickly warm up.

[goldfinch]

I'm about where ShootingStar is at. I can wear shorts in the low forties if it warms up within an hour to 50 plus. I do layer on the top layers and will wear a wool beanie under my helmet if it is in the 40s.

[malkin]

I can bundle all up until the temp is well into the 80s (F).

[velo]

For me, it depends on more than just air temperature. If it's 50F sunny, and not really windy, I will go out with short sleeves and shorts. Add a 15mph wind, and I'll still wear shorts, but add arm warmers. Take away sun and add leg warmers. However, intensity also affects my riding kit. More intense means underdressing and being cold for the first 5 miles. Still that 50*F mark seems to be a key temperature for me, so that's short answer to your question - 50*F/10*C.