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Old 12-02-2013, 10:59 AM
 
Location: Broward County, FL
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Verkhoyansk, Oymyakon, Yakutsk and other interior Siberian cities have a seasonal lead. So do cities in the interior of AK, and cities in northern China that border on Russia. Pretty much any climate that's very continental.
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Old 12-02-2013, 11:00 AM
 
Location: Vernon, British Columbia
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Originally Posted by Ariete View Post
July is the halfway point. Fairbanks' June is warmer than August, May than September, April than October, and March than November. Therefore it has a seasonal lead.
Ah, I see. In that case most places in the north would be like that. I just did a quick check on the Yukon, and discovered that 83% of weather stations show a lead.
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Old 12-02-2013, 11:05 AM
 
Location: Broward County, FL
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^^ I honestly forgot about the Yukon, places like Mayo and Dawson and Watson Lake have a strong seasonal lead, but Old Crow doesn't, maybe influence from the Arctic Ocean?
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Old 12-02-2013, 11:10 AM
 
Location: Finland
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Originally Posted by Glacierx View Post
Ah, I see. In that case most places in the north would be like that. I just did a quick check on the Yukon, and discovered that 83% of weather stations show a lead.
Not here! (I am at 60N). February is the coldest month (severe lag), August warmer than June, September warmer than May, October than April and November than March.
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Old 12-02-2013, 11:14 AM
 
Location: Broward County, FL
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Originally Posted by Ariete View Post
Not here! (I am at 60N). February is the coldest month (severe lag), August warmer than June, September warmer than May, October than April and November than March.
I do notice that places in the interior of continents at above 50 N or so, are more susceptible to a seasonal lead than places at a lower latitude but the same position in the interior, maybe day length has a bigger influence in the North?
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Old 12-02-2013, 12:11 PM
 
Location: Vernon, British Columbia
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Originally Posted by alex985 View Post
^^ I honestly forgot about the Yukon, places like Mayo and Dawson and Watson Lake have a strong seasonal lead, but Old Crow doesn't, maybe influence from the Arctic Ocean?
Old Crow has the strongest lead in the entire territory. The mean June temperature is 2.1 degrees warmer than the mean August temperature. The Whitehorse - Teslin area is the only area that doesn't have a seasonal "lead".
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Old 12-02-2013, 12:11 PM
 
Location: South Jersey
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Originally Posted by Ariete View Post
July is the halfway point. Fairbanks' June is warmer than August, May than September, April than October, and March than November. Therefore it has a seasonal lead.
July is not the halfway point. Summer begins around June 21, so for a place to have no seasonal lag or lead whatsoever, the summer solstice would be the warmest part of the year, on average, and the winter solstice the coldest. Fairbanks has less seasonal lag than most of North America, but it still has seasonal lag, not seasonal lead. If Fairbanks had seasonal lead in summer, then assuming the averages go up and down at a steady rate throughout the year, August 1 would be cooler on average than May 11th (if summer solstice was June 21). Both dates are equidistant from the solstice. And May 11th is definitely not warmer, on average, than August 1 in Fairbanks. Nor is November 10th or 11th colder than February 1st.
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Old 12-02-2013, 12:17 PM
 
Location: Broward County, FL
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Originally Posted by Glacierx View Post
Old Crow has the strongest lead in the entire territory. The mean June temperature is 2.1 degrees warmer than the mean August temperature. The Whitehorse - Teslin area is the only area that doesn't have a seasonal "lead".
Really? Interesting, looking at data it doesn't look like October is colder than April, or November colder than March, etc.
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Old 12-02-2013, 12:26 PM
 
Location: Vernon, British Columbia
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Originally Posted by alex985 View Post
Really? Interesting, looking at data it doesn't look like October is colder than April, or November colder than March, etc.
I suppose it depends on which months we are talking about. There is a huge lead between June and August (the largest in the Yukon), but a lag for the rest of the year. I don't know why this is the case.

Last edited by Glacierx; 12-02-2013 at 12:43 PM..
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Old 12-02-2013, 01:03 PM
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Location: NYC
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Coastal California has little winter lag or even a season lead. Eureka has a slightly cooler December than January, San Francisco is only slightly warmer in December. Together with the extreme summer lag (in San Francisco, October is warmer than August) coastal California must have one the most asymmetric seasons.

I can't understand why coastal California has no winter seasonal lag. Must be from air currents? December is the wettest month in Eureka, so the lower sunshine is probably the cause.
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