However, Beef + Lamb New Zealand service director Rob Davison said the increase was offset by a 2.5 per cent drop in the number of breeding ewes.
"This reflects the continuing expansion of the dairy herd and last season's strong mutton prices."
Mr Pound said most Wairarapa properties were not lambing this year when snow fell in mid to late August - with many inland farms safely through lambing, and eastern properties yet to begin in earnest.
However, "there were some pockets that did get hit".
Mr Pound said farmers "might be a bit reluctant" to restore stock numbers to the levels they were before 2005 when Wairarapa began a spate of bad seasons that continued until this year.
"People are a little more comfortable running at slightly lower levels of stock," Mr Pound said.
"Now it's about production; you're better off having a better animal rather than a lot of animals."
Mr Pound said farmers had been reapplying fertiliser this year after some years of holding back.
Currently farmers are happy with the amount of rain, and holding out for some warm spring weather for grass growth, Mr Pound said.
"And get rid of this wind."