The unnatural weather

The weather of in Shanghai is so unnaturally hot this summer, the highest temperature is over 40.6 degrees which breaks the record of 40.2 in 1934. When I walk on the road I feel it's like like it's burning, when I get into my car it's like jumping into a hot pot. Shanghai became famous because of its temperature, it's almost the hottest place in China now. Most of people are depending on air conditionsing to get through this summer, I don't want to know the number on cost of my electricity bill.

Thanks you!

Very good :)  "I don't want to know the number on my electricity bill" makes sense, but generally we would talk about bills in terms of their cost.