The daily_temp_c list contains average daily temperatures in New York in June.
Convert these temperatures into the Fahrenheit scale. You can use function celsius_to_fahrenheit() defined below that converts a single observation from Celsius to Fahrenheit.
How many days were there on which the temperature exceeded 80 degrees Fahrenheit? Print the answer on the screen.
First, filter out all the days on which the temperature was lower than 80. Then print the length of the remaining list.