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Christmas 1983 in Tampa, high of 3c low of -7 (19.4f). boxing day had the same low again and several more freezes that week it seems. It's hard to tell because many days are missing min temps, but some are filled in, including those.
For example in Christmas 1984, the Tampa highs are 28/29c / 80-85f all week and the low is listed as '0' for many days. When the real lows are like 15-20 probably
It was a high of 38f at my house on Xmas day of 83 and a low of 19f. Xmas 84 was hot and BOOM back to low 20's in Jan of 85. It was 18f in Tampa on Dec 16th i think of 1962.
oh yeah I was trying so hard to find two climate stations as close as possible in Ecuador that were both borderline (I couldn't, it goes from alpine tundra to hot tropical extremely fast in this region) that I ended up posting one that isn't alpine tundra. We can use this one instead, which I don't like as much because the mean is lower but it is an actual tundra. Given how small the seasonal ranges are here, there are probably microclimates with means even higher (possibly higher than Toronto at 9.4?) and no month over 10c
I call Miami tropical for 97% of the year vs 74.18% in 1981. The rate of heating taking place it will be tropical 100% not very far away. Not even sure they have seen a 42f or colder in years anyways.
Fort Lauderdale has had a couple winters in a row recently where the coldest low was in the 30's.
Fort Lauderdale has had a couple winters in a row recently where the coldest low was in the 30's.
I can buy that. Coldest i have been is 33f in years. I am right on the gulf so it is hard to get to 32f while going just a mile inland and it is 2 to 4 degrees colder.
Koppen is not good at presenting a spectrum of climates from cold to warm. There is not a straight line from tundra climate to tropical climate. In fact the difference between them is only 8 degrees. It leads to situations where tundra climates can be warmer than Toronto and tropical climates can be colder than Seville. The difference between tundra and tropical climate in koppen is only 8 degrees (less than 1000 meters of elevation!) but the range of humid subtropical climate is 18 degrees...
this place in Ecuador is a tundra climate
compared to the tropical monsoon climate here
From a UTCI perspective, these climates are extremely similar, with the tundra climate provides minor cold to no thermal stress (if we take 9-26 as no thermal stress). Which feels wrong for them to be 'opposites' then. In fact when we take koppen 10c as the polar cutoff (which does make sense since trees don't grow well under this temperature), there are plenty of subtropical climates in the US which get many, many tundra days per year. For example, Washington DC gets 44.4% koppen tropical days (18+ avg) and yet 32% of the year is koppen tundra days (<10avg). For a climate like philly the percents are 39.4% tropical and 36.9% tundra, using only the most recent five years of data, which favours the tropical end of the spectrum.
If a place has 39.4% tropical weather and 36.4% tundra weather it does not seem right to me to call that place subtropical any more than we would call it subarctic if those percentages were reversed.
to compare to Dallas, which as 61.5% koppen tropical days, they only have 15.2% tunda days. With 4 tropical days for every tundra day, it does make more sense to call this place subtropical
I don't think it's so much that trees don't grow well under 10C, and more that at high latitudes by the time the coolest month is that cool the growing season has become extremely short, too short to support tree growth. Typically the annual mean is cold enough for permafrost to form too.
Obviously neither of those apply to high altitude equatorial ET climates. I would expect trees to grow OK in climates with all months ~10C.
Never gonna agree it is tropical so time 2 move on. If you think it is then that is fine with me. But when coconuts got killed and burned from the super freezes we had back when we had normal weather you just can't call it tropical. Not even Key west is pure tropical.
Key West has a record low of 41. How the hell is it NOT tropical?
I don't call that 100% tropical. Maybe now since we don't get cold weather anymore in FL. Even Cuba has had cold temps back when we had real winters.
Whether you like it or not a 5C record low fits 100% with a tropical climate if the averages are tropical. And needless to say Key West's averages are.
Thats like saying the arctic isn't polar because they hit 75 degrees for a day
I have my own rating system. And at the rate of heating even the poles won't be arctic one day.
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