Monthly mean temperature (1902 - 1954) at 51,5°N and 52,5°N - January to December (1-12) 
51,5°N 52,5°N 
Southend Vlissingen 
Longitude [°W/°E] 
2 
3 
4 
5 
6 
7 
8 
9 
10 
11 
12 
3° 4° 
Longitude [ Ù W/°E] 
6 
8 
10 12 
14 16 18 G C