Growth Rate per Year?

[ssssnakeluvr]

9.5 inches at birth??? where did you read that?? Northwesterns are smaller than that when born...around 5 inches. Not knowing the sex doesn't help. at 17 inches it could be around 3 years old or 2 if female, and 13 inches would be 1 to 2 depending on sex....also depending on what their diet is...only real way to tell how old a snake is to raise it from birth.

[ssssnakeluvr]

also....just want to make sure they are northwesterns...red spots, t s concinnus are around 8 inches when born, probably the largest babies...except for t gigas, the giant garter....

[zooplan]

I´ve seen neonates up 10 " and 3 gram. so both could be born this year.
My albino red sided for example is now 19 weeks old, 16 inch long and 20 gram but she was very small, only about 6" and less than one gram at her birthday.
BTW: Do you talk about snouth-vent-length or about body length including the tail like me?

[ssssnakeluvr]

northwesterns are a bit smaller as babies...some western species have larger babies...