Yep, Northbridge COOP it seems. I noticed that too I'll keep that in mind, i want to redo all these next year and make them more accurate. Some of the COOP sites drive me crazy they are either suspiciously low all the time or suspiciously high and many of them ALWAYS report in whole numbers which also drives me crazy. Like Thomaston Dam, West Thompson Lake, Mount Carmel in CT are always reporting low and round down...to the nearest integer. Back in the day, especially prior to 2007ish and definitely in the 90s all there was was COOP.
Another one is Lawrence, MA COOP it's always been insanely low and whole numbers only, while the Gardner COOP has been on the other end of the spectrum.
Care to elaborate? Blue Hill, to me, appears like the snow magnet capital of E MA. They seem to jackpot a lot and do extremely well in marginal situations but it's not like their elevation is 1k+ or something, it's only 635 which im sure helps but not to the extent i see some of these storms and totals they have. Like March 4-6th, 2001, Feb 1-3, 2021 or March 13-15th, 2023 are good examples off the top of my head.