About a month ago it was WOXOF (goggle it) which is SUPER rare here, and my 31 refused to leave 99%, but all the ASOS's and RAWS around me were 100%, something I've never seen here before. I wanted to join the party as being the lone 99% guy on the NWS web site was bumming me out, so I bumped up the humidity 1% for sh!ts and grins. It stayed at 100% for the next 6 hours, til 10 in the morning when the fog finally burned off. Granted, I had to fudge it 1%, but it was fun seeing everyone of us at 100%.