Barometric Pressure Forecast for Canandaigua, New York
Barometric pressure forecast for Canandaigua, New York — at the north end of Canandaigua Lake in the Finger Lakes, downwind of Lake Ontario and its winter snow machine. See current barometric pressure and what it means for weather-sensitive people.
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Pressure and weather in Canandaigua
Canandaigua sits at the northern tip of Canandaigua Lake in Ontario County, where the long glacial trough of the Finger Lakes opens onto the flatter plain running north toward Lake Ontario about twenty miles away. The deep lake at the town's doorstep moderates temperatures enough to support the vineyards on its slopes, and the far larger lake to the north dominates the winter. Barometric pressure here is governed by the Great Lakes storm track. Lows tracking from the Ohio Valley or the Plains toward eastern Canada pass close by every few days from November through March, each bringing a fall in current barometric pressure, a period of wind and precipitation, and then a rise behind. What follows those fronts is the local signature: as cold air pours across the relatively warm water of Lake Ontario, lake-effect snow bands set up and can dump remarkable totals on the counties south and east of the lake while the barometer is climbing and the sky elsewhere is clearing. Canandaigua sits near the western edge of that reach, so it catches these events irregularly rather than constantly. The region is also one of the cloudiest in the United States from December through February, a persistent low overcast that has more to do with the lakes than with any passing system. Spring is changeable and slow to warm because the lakes lag. Summer is pleasant, humid and barometrically quiet with scattered storms. Autumn is the clearest and most settled stretch. A barometric pressure forecast for Canandaigua is most valuable from November through April.
What this means for you
Can barometric pressure cause headaches? In the Finger Lakes the frequency of frontal passages matters more than their depth — several moderate changes in a week can be harder on a sensitive person than one large storm. The persistent winter overcast can also make it hard to tell by feel what the barometer is doing. Use this barometric pressure forecast with Pressure Pal as a headache tracking app to see pressure change today and get alerts before the next Great Lakes low.