The temperature on jessica’s piano in fehrenheit is

64.4 degrees fahrenheit if you meant to type in the problem “The thermometer hanging on Jessica's patio reads 18°C on a cool autumn day. The temperature on Jessica's patio in Fahrenheit is °F.”

Ibelieve the answer is relative humidity  because it makes more sense that way. solar flares usually occur in space it doesn't affect the earth, well it could but it wont make a significant damage.  latitude is land it doesnt do anything. prevailing winds, i dont know the correct meaning for this but i doubt that affects the land so it has to be relative humidity.