The Ottawa Stacking Math Behind Every Snow Pile That Will Not Shrink
Ottawa does not clear between storms, it accumulates. There is at least 1 cm on the ground about 115 days a year, the mid-winter snowpack averages 21 cm, and February averages 14.2 days with 20 cm or more already down while delivering another 47 cm, more than January’s 39 cm. Every clearing pass therefore lands on top of the last one rather than replacing it, and the bank at the end of a driveway or the corner of a lot is a cumulative record of the whole winter. By mid-February that pile is compacted, refrozen and no longer something a blade will move. The practical consequence is that piles have to be managed while they are still snow, cut down and restacked on a schedule, rather than dealt with when they have already taken the surface.