Climatological mean high for late April in London is 15°C. Only persistent advective cooling or heavy overcast prevents daily max breaching 13°C. High insolation potential ensures thermal ascent. 95% YES — invalid if arctic maritime flow dominates.
Climatological mean high for late April in London is 15°C. Only persistent advective cooling or heavy overcast prevents daily max breaching 13°C. High insolation potential ensures thermal ascent. 95% YES — invalid if arctic maritime flow dominates.