Sweepstake for weight of Julien's baby

Sweepstake is to guess the weight of Julien's baby. £2 to enter and nearest wins all the kitty (shared if two people are nearest). So far we have

Weight (kg)Guesser
3.15Jane (owes £1)
3.20Alistair
3.30Lee
3.40Alberto
3.45Steve
3.50Colin (Jones)
3.55Richard
3.60Marc
3.65Katya (NOC, owes £2 through Andrew)
3.70Tim
3.80Andrew
3.90Till
3.91Simon (owes £2, Simon wins £26)
3.975Ryad's weight (Julien Jnr)

We don't know if it's a boy or girl and no one has seen Julien's partner. We think the due date is/was 15 Jan.

When our baby was weighed the accurcy of the scales was 0.02kg and the scales for our baby jumped between 2.90kg and 2.92kg, so I suggested 2.91kg which is what the midwife put down. I gather the average weight is about 3.5kg, so our baby was pretty small.