Everyone has theories when it comes to deer movement. Food sources, barometric pressure and moon phase are all markers hunters use to determine when the best time to hunt will be. But when it comes down to it, the most significant indicator of deer movement is weather.

Collectively, weather is the most significant factor. Temperature, cloud cover and wind all play essential roles in determining if deer will be on the move, and some of the results may surprise you.

Temperature has the biggest impact on deer movement, especially during daylight. This is obvious when the hot days of early archery are interrupted by the first frost, but it can also be a factor as the season continues. An unseasonably warm day will see deer slow even if other conditions are perfect. Likewise, a 10-degree drop in the middle of winter can kick-start the late season.

Cloud cover is something that many deer hunters need to consider. Others apply fishing logic and look for cloudy days to improve their chances. However, studies have shown that the opposite is true. Rainy days are rarely good hunting, with cloudy days seeing a slight increase in deer sightings. However, bright sunny days have recorded the most sightings and the highest harvest, making them the best days to hunt.

Wind is one of the more exciting factors and is something most hunters are probably getting wrong. If you are like me, you probably skip hitting the wood when strong winds are blowing. Not only can it make sitting in a tree stand dicey, but the chances of deer detecting you must be higher, right? The experts say we are wrong. According to the data collected, hard, faster winds are directly related to higher deer numbers, with the largest number of deer sighted and harvested in winds over 15 mph.

So, the perfect day to hunt is …

If you look at all the data and combine the conditions, the perfect deer hunting day may be a clear, sunny day with colder-than-normal temperatures and a stiff wind. While this may not be the ideal condition for you, it is when, statistically, the most deer will be seen. Of course, you may need to alter your hunting style by switching to a blind instead of a tree stand or moving to a different location for better scent control; the odds are in your favor.

But why?

One thing the studies do not answer is why a sunny, cold, windy day gets the deer moving. But if you look at deer and how they behave in the wild, it does make some sense.

Clear days make it easier for deer to spot potential threats; thus, they feel safer being out during the day.

Windy days make it harder for deer to hear threats or determine where scent is coming from. Not only do deer feel safer moving around versus being in a single vulnerable bedding area, but it gives you an advantage as well.

Although deer are more capable of handling cold temperatures than humans, they are still subject to getting cold. This means they may need to eat more to replace calories burned off keeping warm. It also means that they may get up and walk around more just to warm up a bit.

Regardless of why cold, clear, windy days may be the best days to see deer, statistics point to this being the case. If this is the case, maybe next time you wake up and see such a day in the forecast, you will throw on another layer, grab the thermos and bag a trophy instead of daydreaming about what could have been.