On their most dramatic night of the season, the Bears had a game without any.

In the coldest temperature, the Bears didn’t sweat one out.

And on an evening where a victory would tie the Lions for first place in the NFC North, the Bears finally had an easy win, steamrolling past the defenseless Cowboys, 45-28, at Soldier Field.

With three games to play, the Bears are now even with Detroit, though the Lions hold the tiebreaker.

Monday night, Josh McCown looked like John Elway, completing 27-of-36 passes for 348 yards, four passing touchdowns and one helicoptering dive into the end zone for a 7-yard touchdown run.

In what might be his final start — though statistics would argue otherwise —McCown helped Alshon Jeffery continue one of the great receiving seasons in team history.

The two combined forces on one of the most amazing catches anyone’s seen on the banks of Lake Michigan — a 25-yard jump-ball touchdown with 10 seconds left in the first half.

Jeffery, double-covered at the back right pylon, leapt, landed with his feet in bounds and gave the Bears a 24-14 lead at halftime in front of 56,644 frigid faithful.

The break featured Mike Ditka’s jersey retirement ceremony. The former tight end, whose No. 89 is the last jersey the Bears plan to retire, pumped his fist and exahalted, “Go Bears!” at the end of his halftime ceremony.

The cold throng — the wind chill was -9 at kickoff — responded in full throat.

The Cowboys jumped ahead 7-0 on a 2-yard Dez Bryant touchdown reception before the Bears scored 42 of the game’s next 49 points.

The Cowboys defense didn’t so much as force a punt in the game, and committed four penalties for 50 yards.

It started with an 4-yard Earl Bennett catch, and then, after Jason Witten’s 10-yard catch of a bootleg pass, McCown’s scoring scamper.

Robbie Gould’s 27-yard field goal took the lead, and Jeffery’s impossible catch bumped it to 10.

After posting a team-high 249 receiving yards last week in Minneapolis, Jeffery had five catches for 84 yards.

Receiving to start the second half, the Bears set up a 34-yard Gould field goal.

Matt Forte’s 4-yard scoring catch and Brandon Marshall’s two-point conversion catch made it 35-14, and put the game out of reach.

Michael Bush’s 17-yard scoring screen pass in the fourth quarter made it officially a laugher.

The Bears’ offense had the balance of a gymnast.