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How Barometric Pressure Affects Deer Movement

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How Barometric Pressure Affects Deer Movement

When deer season starts, it’s natural to pay attention to the weather factors you can easily see and feel: the cloud cover above, the wind in your face, the rain drops dripping from the brim of your cap.

But it’s easy to forget about the most important factor of all: barometric pressure. It’s more difficult to judge without an instrument or the Internet, but you should know that pressure rises after a front passes and when high a high pressure system is building. It lowers before the arrival of a front and during a low pressure center.

I have collected barometric pressure data from around the country for years through log book entries from trail cameras, hunters and private studies. The results are clear and indisputable. Deer like a pressure above 30.00 in. {C}

And if you want to see bucks, the ratio of bucks to does sighted when the pressure is between 30.00 – 30.40 is a staggering 1 to 1! When it drops and is between 29.8 and 30.00 there were a third as many deer spotted and with that figure your chances of seeing a buck dropps to 1 in 3.

There is a sweet spot within the pressure scale that I have found and it seems to be at 30.20 to 30.30. There will also be a difference in sightings depending on if the pressure is rising or falling. Rising pressure right before its peak is best.

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