I want to know the answer to the following question:
About how many days a year in Plymouth are over 77 °F?
All the background I'm provided with is that "During the winter half of the year, the coldest night will typically fall to −4.1 °C (25 °F) although in January 1979 the temperature fell to −8.8 °C (16 °F).". Is that enough to answer the question?