Can climates with seasonal "lead", not seasonal lag, exist? (hottest, warmest)
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Because of physical factors (water retaining heat), most climates generally have considerable seasonal lag with the hottest time of year after the time of peak sun and the coldest the time of year after that of low sun.
What does it take for one to have a seasonal lead? The only examples I can think of are certain monsoonal climates in Asia, eg. New Delhi (New Delhi - Wikipedia, the free encyclopedia) which is outside of the tropics, albeit slightly, and thus should have the time of peak sun in June, but yet has the hottest month in May. However, this seasonal lead is only in spring to summer, with the monsoon cooling down the summer. Is this the only way to get seasonal lead? What are some other possibilities? Winter is still coldest in January though in this kind of climate.
If you get into within the tropics, it becomes less meaningful to talk about winter and summer, but what climates, if any, have seasonal lead in either summer or winter?
It's a semi-arid, extremely hot town in the subtropics (close to the tropics though). The temps are the highest in late spring and early summer (Nov-Dec).
It is pretty common throughout Argentina. Although general climate patterns are ruled by permanent anticyclones of the South Atlantic and the South Pacific, making impossible large year temperature ranges, climate here usually works locally in a rather continental way, causing a closer adjustment between temperature and sun angle than in many other mid-low latitude regions.
Having checked 209 Argentine Stations I keep their averages, I've found this:
Summer (Dec-Feb)
December warmer than February: 85/209 (mostly in the west)
February warmer than December: 110/209
December and Februray are tied: 14/209
November warmer than February: 4/209 (a few spots in the northwest)
February is the lone warmest month: 5/209
January and February tied as the warmest month: 1/209
December is the lone warmest month: 4/209
January and December tied as the warmest month: 5/209
Winter (Jun-Aug):
June colder than August: 201/209
August colder than June: 6/209 (isolated Andean areas)
June and August are tide: 2/209
June is the lone coldest month: 32/209 (mostly in the north) June and July are tied as the coldest month: 21/209 (mostly in the north)
August is the coldest month: 2/209
Close, but July is still warmer than June, and December is still warmer than January.
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.
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