If you'll be in areas where it doesn't freeze/snow/ice you should be pretty OK.
I have had wet snow so heavy in no-wind conditions followed by a temperature plunge that froze up all my anemometers, including a non-alpine RM Young.
Most were too far up to go try to de-ice by hand and had to wait a few days for sun and slightly warmer temps.
These gizmos don't like snow or ice.
I had an RM Young that was nice, but an errant piece of ice falling off my tower after a spring ice storm took off one of the little transmitter / receivers. Attempts at reattaching were successful due to the angle of the crack, but because of the toleances, even the wee bit of offset and despite trying to measure the triangle, it was never happy again. I called RM Young and talked with the nicest guy, very understanding that it was a hobby not a business nor were there deep pockets, but the best he could do was a $500 - 600 repair charge....