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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 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 on 1/23/22 at 6:47 am to Methuselah
I’d argue February is the coldest most miserable wintry month in the south.
Posted on 1/23/22 at 6:49 am to Methuselah
quote:
It seems strange that, even though the daytime hours are getting longer,
16 minutes longer than the winter solstice, in my area.
Posted on 1/23/22 at 6:50 am to Methuselah
The heat held in the ground is bleeding off.
Posted on 1/23/22 at 6:53 am to TygerTyger
quote:
I’d argue February is the coldest most miserable wintry month in the south.
Yeah. Probably late January to early February.
Posted on 1/23/22 at 6:55 am to Methuselah
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 on 1/23/22 at 6:55 am to Methuselah
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 on 1/23/22 at 6:55 am to Obtuse1
quote:And oceans. It takes awhile for the water temps to get back up even though the days are longer. .
The heat held in the ground is bleeding off.
Posted on 1/23/22 at 7:10 am to Methuselah
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 on 1/23/22 at 7:21 am to Methuselah
We're adding about one minute of daylight each day. Not enough to move the needle.
Posted on 1/23/22 at 8:04 am to Methuselah
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.
Has to do with solar radiation and how its absorbed, stored and released.
Posted on 1/23/22 at 8:13 am to Methuselah
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 on 1/23/22 at 8:13 am to TygerTyger
quote:
I’d argue February is the coldest most miserable wintry month in the south.
I would agree with you.
Posted on 1/23/22 at 8:18 am to Methuselah
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.
Like swimming in the lake in July and you go through a cold spot.
Well this is it.
Posted on 1/23/22 at 8:24 am to Methuselah
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
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 on 1/23/22 at 8:33 am to FredBear
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 on 1/23/22 at 9:44 am to Methuselah
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.
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 on 1/23/22 at 11:41 am to Methuselah
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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