Neutrals are in circulation 365 days a year, and as long as its below 50 degrees then you can still pull out a sweater like this without shame. Because there isn't too much pattern, I'd keep this dressed down and avoid dressing up too often.
Lambswool Fair Isle Sweater in Forest via J.Crew
L.L Bean probably made a sweater similar to this for our grandfathers, now the torch is being passed down to you. Use this as a layering piece instead of the focal point of your outfit — pattern along with light gray/white can easily be seen as synonymous with snow.
Shetland Wool Sweater in Fair Isle via L.L Bean