My....hope understand what ur looking for would research last year days u are interested in say 11-11-16 tru 11-18-16 and 11-11-17 tru 11-18-17
1....temps last year for those days 2....last year lng storage for same days 3....this year temp predictions for those days 4.... you could get close to storage predictions 5.... look back and see what CASH was on those days