Washington Gas would like to inform you that you may have noticed that there was a slight increase in your bill in January compared to previous months. The increase in your January 2017 bill is attributable to an additional eight days of natural gas usage in December 2016. Those eight days of gas usage in December 2016 were billed in January 2017, due to the transition to the new customer information system that required a system outage from Dec. 22, 2016 – Jan. 2, 2017. Your bill, with normal seasonal usage, should return to normal levels starting with your February 2017 bill.