Seattle has gone 26-8 in the regular season from November on since 2011, and 21-4 in the last three years. ‘We’ve had pretty good history with that,’’ says coach Pete Carroll.

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RENTON — Sunday’s game at Dallas also marks the beginning of what has traditionally been the Seahawks’ time of year.

The Seahawks have hardly been bad in any month under Pete Carroll, especially since the Russell Wilson era began in 2012.

But mirroring what tends to be their habit in games, the Carroll-era Seahawks have generally saved their best for last in seasons, too.

Consider that the Seahawks have gone 26-8 in the regular season from November on since 2011, and 21-4 in the last three years (that compares to records of 17-13 and 15-8 in September and October of those same spans, respectively).

“When you turn the corner, the midway point of the season, that’s when things can happen in either direction,’’ Carroll said Friday. “They’ve gone pretty well for us, and we’ve had pretty good history with that.’’

History that will need repeating if the Seahawks are to salvage a lackluster start to the 2015 season, standing at 3-4 entering a game at Dallas Sunday that begins at 1:25 p.m.

“This is a significant opportunity to kick that into high gear again,’’ Carroll said. “I hope we can.”

Certainly, the game looms pivotal to the season from just about any vantage point.

The Seahawks remain two games behind Arizona (which is 5-2) in the NFC West. Like Arizona, Seattle has a bye next week before hosting the Cardinals on Nov. 15.

That means that after Sunday — Arizona will be at Cleveland in a contest that begins at 10 a.m. — the Seahawks will be anywhere from one to three games behind the Cardinals heading into that showdown in Seattle in two weeks.

Goes without saying what Seattle hopes will happen.

But the Seahawks also say a key the rest of the way will be worrying only about themselves.

As they lost four of their first six games, some Seahawks players talked of “distractions’’ or lack of focus as a reason.

“Every week when you’re a Seahawk, you’re playing against everybody’s best,’’ defensive end Michael Bennett said this week. “They look, they mark that up. It’s the opposite of a homecoming game. It’s one of those games where it’s almost like a Super Bowl for them. They want to beat us, they want to show it’s a turning point for their team, and we have to be ready for that. We can’t let anything mess our judgment up.’’

Before the season, many observers may have marked this game as a potential NFC Conference Championship preview.

Dallas matched Seattle’s 12-4 record last season before losing a tight game at Green Bay in the divisional playoff round. But after a 2-0 start this year, injuries to quarterback Tony Romo and receiver Dez Bryant heavily contributed to a four-game losing streak that has many now viewing this game as just about a must-win for the Cowboys in order to make anything of this season.

Romo won’t be back, but Bryant is expected to play for the first time since breaking his foot in the season opener.

The Seahawks, though, feel as if they have righted themselves following a 20-3 win at San Francisco a week ago Thursday that followed a familiar formula — a punishing running game (176 yards) and a stifling defense.

The Seahawks also know that the Dallas game caps what has been a somewhat grueling start to the season. The Cowboys’ game concludes a stretch of five trips in eight games in the first half, four to the Eastern or Central time zones. After Sunday, Seattle has just three road games left, none until Dec. 6 at Minnesota.