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Here is a close match at same latitude...Toulouse, France vs Roseburg, Oregon
Toulouse / Roseburg
10/2 JAN 10/3
11/3 FEB 13/3
15/5 MAR 15/4
17/7 APR 17/5
21/10 MAY 21/8
25/13 JUN 25/11
28/16 JUL 30/14
28/16 AUG 30/14
24/13 SEP 27/11
20/10 OCT 19/7
13/6 NOV 12/5
10/3 DEC 10/3
Here is a close match at same latitude...Toulouse, France vs Roseburg, Oregon
Toulouse / Roseburg
10/2 JAN 10/3
11/3 FEB 13/3
15/5 MAR 15/4
17/7 APR 17/5
21/10 MAY 21/8
25/13 JUN 25/11
28/16 JUL 30/14
28/16 AUG 30/14
24/13 SEP 27/11
20/10 OCT 19/7
13/6 NOV 12/5
10/3 DEC 10/3
Interesting that the difference in annual means comes from the summer nights being warmer in Toulouse and not winter.
0/-8 JAN 12/3
2/-6 FEB 13/4
8/-1 MAR 15/5
15/5 APR 18/8
21/11 MAY 23/12
27/17 JUN 27/15
29/20 JUL 30/18
28/19 AUG 31/18
24/14 SEP 27/15
17/8 OCT 21/11
9/1 NOV 16/7
2/-5 DEC 13/4
At about same latitude are...
Washington vs Lisbon
6/-2 JAN 15/8
8/-1 FEB 16/9
13/3 MAR 19/11
19/8 APR 20/12
24/14 MAY 22/14
29/19 JUN 26/17
31/22 JUL 28/18
30/21 AUG 28/19
26/17 SEP 27/18
20/10 OCT 23/15
14/5 NOV 18/12
8/0 DEC 15/9
Conclusion....Europe even at lower latitudes (like Rome and Lisbon) are warmer
in winter than central and eastern USA, more subtropical (and can grow more palms, LOL).
0/-8 JAN 12/3
2/-6 FEB 13/4
8/-1 MAR 15/5
15/5 APR 18/8
21/11 MAY 23/12
27/17 JUN 27/15
29/20 JUL 30/18
28/19 AUG 31/18
24/14 SEP 27/15
17/8 OCT 21/11
9/1 NOV 16/7
2/-5 DEC 13/4
At about same latitude are...
Washington vs Lisbon
6/-2 JAN 15/8
8/-1 FEB 16/9
13/3 MAR 19/11
19/8 APR 20/12
24/14 MAY 22/14
29/19 JUN 26/17
31/22 JUL 28/18
30/21 AUG 28/19
26/17 SEP 27/18
20/10 OCT 23/15
14/5 NOV 18/12
8/0 DEC 15/9
Conclusion....Europe even at lower latitudes (like Rome and Lisbon) are warmer
in winter than central and eastern USA, more subtropical (and can grow more palms, LOL).
Lisbon isn't really warm compared to cities on the Med Coast though.
Valencia
16/7
17/8
19/10
23/15
27/19
30/22
30/22
28/19
24/15
20/11
17/8
And Valencia lies further north than Lisbon.
Merced has slightly colder record lows, similar record highs. San Francisco is at the same latitude as both but is obviously much colder except in the winter and has milder record lows.
0/-8 JAN 12/3
2/-6 FEB 13/4
8/-1 MAR 15/5
15/5 APR 18/8
21/11 MAY 23/12
27/17 JUN 27/15
29/20 JUL 30/18
28/19 AUG 31/18
24/14 SEP 27/15
17/8 OCT 21/11
9/1 NOV 16/7
2/-5 DEC 13/4
At about same latitude are...
Washington vs Lisbon
6/-2 JAN 15/8
8/-1 FEB 16/9
13/3 MAR 19/11
19/8 APR 20/12
24/14 MAY 22/14
29/19 JUN 26/17
31/22 JUL 28/18
30/21 AUG 28/19
26/17 SEP 27/18
20/10 OCT 23/15
14/5 NOV 18/12
8/0 DEC 15/9
Conclusion....Europe even at lower latitudes (like Rome and Lisbon) are warmer
in winter than central and eastern USA, more subtropical (and can grow more palms, LOL).
Yes, but you are comparing west coast climates with east coast climates.
Draw a line on a map from Lisbon thru Turkey. Only a tiny portion of Europe is on the latitude of Washington DC. The US at 39N has a huge amount of territory. Europe is much higher overall in latitude. The thing is when you compare places at 39N, they are mostly Med climates and are coastal and sticking out on penisulas in Europe like Spain, Italy and Greece. The vast majority of Europe is much colder than the Med. When you go to Turkey, which has more inland territory, you can't really compare cause the elevations are so high. However, if you compare cities in Turkey with comparable elevation cities in the US like Erzikan, Turkey vs Goodland, KS the difference shrinks to nothing. In fact Denver is warmer than places in Turkey that are lower in elevation. Goodland is actually warmer in winter and summer than Erzikan, but cooler in Spring and Autumn. The means are virtually the same for 1961-2012. Another thing is that I wonder where all the Euro averages are taken. If they are taken in crowded UHI areas, then the differences will also be skewed.
When you compare Larissa Greece with DC, the annual mean diff is 1.4C for 1961-90 averages. I would hardly call that "extremely" warmer. More like barely warmer on the annual mean, though of course winters are warmer with all that water around Greece. Interesting that the record low is colder in Larissa. No wonder there doesn't seem to be palm trees around. You can find the isolated palm tree in the middle of the UHI in protected gardens, but not much else. I'm sure any unprotected ones were killed in January 2012 with 4 straight ice days, one of which didn't go above 27.5F, and three nights down in the middle teens.
Last edited by tom77falcons; 10-19-2014 at 03:31 PM..
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