Halloween revelers be warned. A spike in distracted driving and speeding creates danger for drivers, passengers, and trick-or-treaters — particularly at night.

New Cambridge Mobile Telematics (CMT) analysis reveals a 3.7 percent increase in distracted driving on Halloween.

Distraction reaches its highest point during trick-or-treating hours, from 7:00 p.m. through 9:00 p.m.

The spike in distraction dramatically increases crash risk during trick-or-treating on Halloween. With more pedestrians out, the stakes couldn’t be higher.

Last year, Halloween fell on a Tuesday. For this analysis, CMT looked at hour-by-hour screen interaction data on Halloween and the surrounding Tuesdays last October. CMT defines screen interaction as when a driver taps on their phone’s screen while the vehicle is traveling over 9 mph.

Much like other weekdays, distraction on Halloween isn’t spread evenly throughout the day. We see distraction fluctuate hour by hour.

However, on Halloween, distraction rates start creeping up at noon and remain slightly elevated until 5:00 p.m.

Distraction surges at the worst possible time — during the most popular trick-or-treating hours from 5:00 p.m. – 9:00 p.m. — with the average rate elevating to 8.9 percent higher than other Tuesdays.

The highest point of distraction throughout the day is from 7:00 p.m. through 9:00 p.m. when drivers spend 2 minutes and 42 seconds on their phones per hour.