Write SQL query to solve given problem: What is the difference between the hottest temperature and the coldest temperature in in Fahrenheit on 8/29/2013 for the area where the zip code is 94107?. Keep the solution inside sql tag ```sql [SQL-Query] ```
SELECT SUM(IIF(zip_code = 94107 AND date = '8/29/2013', max_temperature_f - min_temperature_f, 0)) FROM weather