Perhaps a dusting of snow overnight, but it could just've been frost. A couple of days ago I dropped a big chunk of ice on the patio - all the bits were still there today, as sharp-edged as they were when I broke it.

Flakes of snow at 9am, some sun during the day through cirrostratus, the moon likewise in the evening.

Went out at 10pm to smoke to find it had been snowing for some time. That hissing, dry sound of it falling.

0900 8 FLAKES OF SNOW (dusting overnight)
8 -> 0/8 some sun
1800 0/8 Cs, moon-through
2200 SNOW
2300 cont
(2200 pressure down)