(Photo by Otto Greule Jr/Getty Images)

The Nationals closed the month of August with a bang, hitting 10 home runs while taking two of three games at Seattle. Four of the Nationals’ franchise record-tying six home runs in Friday’s series opener at Safeco Field came off Mariners ace Felix Hernandez, the most the former Cy Young winner has allowed in a start in his career.

Washington’s late-month barrage brought its August home run total to 40, which ranked second only to Baltimore’s 47 home runs. It marked only the second time in franchise history that the Nationals have hit at least 40 home runs in a month. The other time was when they hit a major league-best 49 home runs in September 2012. By comparison, the Orioles have hit at least 40 home runs in a month three times in the last two seasons.

August has historically been the Nationals’ most homer-happy month. It is the only month — excluding March and October — in which the Nationals have hit at least 20 home runs in each of their first 10 seasons in Washington. September’s been good for the franchise’s home run totals, too, and the Nats are off to a fast start through two games this month.

*September and October averages through 2013 season.

Home runs aren’t everything, of course. In 2007, the Nationals hit 12 home runs in April and went 9-17. In 2012, they hit 13 home runs in April and went 14-8. The Nationals were 10 games over .500 in June and July this season while combining for 34 home runs over those two months.