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OT experts - Why is January colder when the winter solstice is in December?

Posted on 1/23/22 at 6:45 am
Posted by Methuselah
On da Riva
Member since Jan 2005
23350 posts
Posted on 1/23/22 at 6:45 am
It seems strange that, even though the daytime hours are getting longer, it is usually colder in January than in December. Seems like more sunlight would equal a little warmer temperatures.
Posted by TygerTyger
Houston
Member since Oct 2010
10728 posts
Posted on 1/23/22 at 6:47 am to
I’d argue February is the coldest most miserable wintry month in the south.
Posted by MoarKilometers
Member since Apr 2015
20485 posts
Posted on 1/23/22 at 6:49 am to
quote:

It seems strange that, even though the daytime hours are getting longer,

16 minutes longer than the winter solstice, in my area.
Posted by Obtuse1
Westside Bodymore Yo
Member since Sep 2016
30005 posts
Posted on 1/23/22 at 6:50 am to
The heat held in the ground is bleeding off.
Posted by Methuselah
On da Riva
Member since Jan 2005
23350 posts
Posted on 1/23/22 at 6:53 am to
quote:

I’d argue February is the coldest most miserable wintry month in the south.


Yeah. Probably late January to early February.
Posted by Hangit
The Green Swamp
Member since Aug 2014
45243 posts
Posted on 1/23/22 at 6:54 am to
It is tradition.
Posted by cable
Member since Oct 2018
9735 posts
Posted on 1/23/22 at 6:55 am to
The oceans in the northern hemisphere have lost a lot of heat. It takes a while for all that heat content to bleed off.
Posted by 0x15E
Outer Space
Member since Sep 2020
14735 posts
Posted on 1/23/22 at 6:55 am to
Seasonal lag and the fact that water cools slower than land. It takes a while for the water around the continent (that affects our air masses) to cool enough to allow temperature to cool over land.
Posted by tigeroarz1
Winston-Salem, NC
Member since Oct 2013
3809 posts
Posted on 1/23/22 at 6:55 am to
quote:

The heat held in the ground is bleeding off.
And oceans. It takes awhile for the water temps to get back up even though the days are longer. .
Posted by FutureMikeVIII
Houston
Member since Sep 2011
1627 posts
Posted on 1/23/22 at 7:10 am to
quote:

Seems like more sunlight would equal a little warmer temperatures


Even though we are getting more energy, we still aren’t getting enough energy to be gaining in average temp.
Posted by Bestbank Tiger
Premium Member
Member since Jan 2005
78941 posts
Posted on 1/23/22 at 7:21 am to
We're adding about one minute of daylight each day. Not enough to move the needle.
Posted by RogerTheShrubber
Juneau, AK
Member since Jan 2009
294611 posts
Posted on 1/23/22 at 8:04 am to
Roughly a 6 week lag. Coldest is usually at the end of Jan.

Has to do with solar radiation and how its absorbed, stored and released.
Posted by LSU Coyote
Member since Sep 2007
56166 posts
Posted on 1/23/22 at 8:05 am to
You fckking with us
Posted by OysterPoBoy
City of St. George
Member since Jul 2013
42837 posts
Posted on 1/23/22 at 8:13 am to
The winter solstice used to be the coldest day of the year. Over the last century industrialization, and more recently aerosol sprays, have caused a weakening of the jet stream. That allows the arctic cold to make its way down to us in January and February.
Posted by RollTide1987
Augusta, GA
Member since Nov 2009
69463 posts
Posted on 1/23/22 at 8:13 am to
quote:

I’d argue February is the coldest most miserable wintry month in the south.


I would agree with you.
Posted by Bullfrog
Running Through the Wet Grass
Member since Jul 2010
60284 posts
Posted on 1/23/22 at 8:18 am to
It’s just the cold spot in our orbit in space.

Like swimming in the lake in July and you go through a cold spot.

Well this is it.
Posted by FredBear
Georgia
Member since Aug 2017
16799 posts
Posted on 1/23/22 at 8:24 am to
While the shortest day of the year is Dec 21 the atmosphere hasn't completely cooled off to its coldest point until around this time of year. The same applies in summer, June 21 is the longest day but the hottest time is usually more like late July.

I know at the test roadway track for NCAT their measurements have shown that the average lowest temperature for the track is Jan 21 and the highest is July 21. This is on average, obviously individual years can vary some
Posted by real turf fan
East Tennessee
Member since Dec 2016
11113 posts
Posted on 1/23/22 at 8:33 am to
quote:

Seems like more sunlight would equal a little warmer temperatures


Even though we are getting more energy, we still aren’t getting enough energy to be gaining in average temp.


And the sunlight that gets to the polar area is passing through a lot of atmosphere, reducing its punch.

Do you remember when Knoxville was below zero Fahrenheit for three days the third week of January 1985? That was arguably the coldest in recent times. Combine an arctic slug of air with nothing to warm it up.

1985
Posted by PrimeTime Money
Houston, Texas, USA
Member since Nov 2012
27828 posts
Posted on 1/23/22 at 9:44 am to
The moon in January is in the third tricoporus phase. Atmospheric conditions during this phase cause the cold air from the northern pole to move south. That, in combination with a reduction of geothermal heat in the oceans (endothermic reaction) means the oceans do not push warm air onto land during January and February as they do during December.

I have no idea what I’m talking about. I just made all of that up.
This post was edited on 1/23/22 at 9:46 am
Posted by Duke
Dillon, CO
Member since Jan 2008
36439 posts
Posted on 1/23/22 at 11:41 am to
Takes time to bleed off heat or add it. Think about hurricane season, 95%+ of the action happens after June 21st.
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