I agree with Zuma, wet conditions around zero are the worst to cope with. I'd far rather it was -10c or even -20c than 0 with everything slushy or wet snow falling, especially if its also wind-driven!
There's been an unseasonally warm March across Scandinavia it seems. I was out in Norway for most of the first two weeks. It had been warm enough to rain in the mountains the week before we arrived, and there was more open, flowing water on display than is usual at this time of year. We got a good first few sub-zero days, and then a week of the same slushy, thawing stuff that hit Keith and his group. Apparently this pretty much continued for the rest of the month (one of our guys stayed out there).
It's certainly important, for comfort and for safety, to learn to keep your kit dry in those conditions, and I've never regretted switching over from leather to plastic boots for ski-touring (and neither have my toasty warm feet
)