Need a time estimate

[gmebey]

I'm planning to do 3 22oz Cornish game hens this weekend. With the expected peak day temperature being only 40-50F I'm estimating my electric smoker will make it to only 250, maybe 275 at best.

What would be a good estimate for time at 250F?

 

[meateater]

If you can get from 40*-140* in 4 hours or less thats good. With game hens that shouldn't be a problem. Preheat it and dont peak!