Answer:
Frequency is 2, 2 and 3. 
Explanation:
Temp in 101 to 106 - In this range only 2 temperature is there 104 and 104 in 2 cities. so frequency is 2. 
Temp in 107 to 112 - In this range only 2 temperature is there 107 and 112 in 2 cities. so frequency is 2. 
Temp in 113 to 118 - In this range only 3 temperature is there 114, 117 and 118 so frequency is 3.