You could definitely get use of the pool during those dates. We have been the last two years in March. 2006 it was pretty warm....mid 80's. It did get cool at night and we were fine with jeans and long sleeve t's or sweatshirts.
We LOVED HOJO's!!! We have not stayed at PVI yet, we're staying there in a few weeks. The only reason we are not staying at HOJO's again is because they were booked (DIS ladies trip) took over that week
Yikes!! Where in B.C. are you? We're in Steveston Village in Richmond, and it's sooo sunny and warm right now -- spring like weather. The snow has all disappeared.
Whenever we go in March, we always find it warm during the day and cool in the evenings. We bring the sweatshirts and put it in a locker at DL or CA (also storing extra water bottles that we buy cheap at Target) instead of lugging them around with us. We decide on which locker (DL or CA) to store things in depending on which park we decide to spend our evening in.
We'd love to stay at HOJOs too. But it's so pricey whenever we go ($130+). We've never had the good fortune of getting Entertainment rates during our dates.