? SQL Server 2005 - group by

[MikeBoston]

I need some direction on group by

I have a table that tracks wind speed and barometric pressure by latitude and longitude and date (month,day, year). I'm trying to figure out how to write a sql statement that will find the maximum wind speed across all years for each 10 degrees of latitude. I was thinking I could use group by but not sure how to find by 10.

For example - I need to find the maximum wind speed for latitude between 0 - 10, 11 - 29, 30 - 39, etc up to 90.

Any direction will be appreciated