Coldest Hour of the Day

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ronnycl

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I don't care what the weather man says - the coldest part of the day is just as the sun is coming up 6:30-7:30. I freeze in the stand about this time. I am good before and after. They always say the morning low occurs overnight but I guess they don't hunt!
 
Lol that's what I've always said too!!! It's nice out this morning and the deer are on there feet!!! Good luck!!!


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I agree 100%. I had a professor in college that explained that to us, but he barely spoke English and I was half asleep.
 
yep, it always seems coldest to me too.

My guess was always that when the sun first rises and begins warming, all the cold air sinks to the ground...but I don't know it just sounded good in my head.
 
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Is it that the low is after sunrise or is it that your body finally cools down after walking in and climbing? I am always warm coming in from the hike and sometimes climbing a tree. Then I get colder and colder until the sun is high enough to warm things up.


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If you monitor temps you will see that it does drop a degree or two right when the sun starts rising.
 
I always attributed the colder air after sunup to the sun warming the earths surface, causing the cold air on the ground to move upward rapidly (thermals). Next time you're out on really cold morning with bluebird skies, spray your wind detector powder and watch how it flies straight up along with the thermals. These are the days I like best because it's tough to get winded with the air going straight up, and the woods are usually frosty and loud as well.
 
Cold toes last weekend caused me to buy new boots and wool socks this week.. Hope my toes feel better tomorrow


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My huntin buddy and me discuss this every year.
It's crazy how it drops right at that moment....


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Low temperatures commonly occur after sunrise for 2 primary reasons
1. The ground is an insulator. After sunrise thermal mixing displaces the air near the ground with colder air aloft.
2. Evaporation is a powerful cooling process. Its why you are cold when you step out of the shower. After sunrise any surface moisture can evaporate cooling the air a degree or two.
 
I would say its because you have probably sweated a bit and you are a bit damp. Even though you may have the best wicking clothes around your body heated up going in the woods and then it cools down. You are naturally going to feel coldest at that point. I have felt it myself.
 
PillsburyDoughboy":c1cj8mug said:
I would say its because you have probably sweated a bit and you are a bit damp. Even though you may have the best wicking clothes around your body heated up going in the woods and then it cools down. You are naturally going to feel coldest at that point. I have felt it myself.


Or, it could have been that it ACTUALLY was the coldest at that point as BP, you know the NWS meteorologist, pointed out :) !
 
BamaProud":rxx60rxh said:
Low temperatures commonly occur after sunrise for 2 primary reasons
1. The ground is an insulator. After sunrise thermal mixing displaces the air near the ground with colder air aloft.
2. Evaporation is a powerful cooling process. Its why you are cold when you step out of the shower. After sunrise any surface moisture can evaporate cooling the air a degree or two.

I was hoping you'd chime in on this. ;)
 
I have heard my dad say the same thing before. I think it is simply because your body has calmed down from your hike in. Any sweat, even the smallest amount, will turn cold on your skin before your clothing wicks it away. I have learned to dress down on my hike to the stand. Just my 2 cents


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BamaProud":uq3e0378 said:
Low temperatures commonly occur after sunrise for 2 primary reasons
1. The ground is an insulator. After sunrise thermal mixing displaces the air near the ground with colder air aloft.
2. Evaporation is a powerful cooling process. Its why you are cold when you step out of the shower. After sunrise any surface moisture can evaporate cooling the air a degree or two.

And in the summer when the sun evaporates the dew it's super muggy and hot.
 
We are a few degrees cooler than nashville most time, being out in country. Going toward town in the holler it is few degrees cooler than where I live at top of ridge. The other day it was 31 at house and 29 a mile down road.
 

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