A Bowdoin College alumnus, Arnold began calling games for the school teams while a student there in the mid-1970s. In 1979, he succeeded Mike Emrick as the voice of the Maine Mariners. He joined the New Jersey Devils with Doc Emrick as their radio announcer in 1986, before returning to New England two years later. Arnold called New England Patriots games from 1988–90, and provided play-by-play coverage for Bruins home games from 1995–2007. In July 2007 he was replaced by former ESPN sportscaster Jack Edwards as Bruins play-by-play telecaster. Arnold has been with WEEI radio since its inception in 1991 at 590 kHz, then as Sportsradio 850, then moving to WEEI-FM with other locally produced programs. He first hosted a late-morning show from 10 AM to 1 PM, before being teamed up with Eddie Andelman on a show called the A-Team. After Andelman's departure from WEEI in 2001, he was paired with former television sportscaster Bob Neumeier on the Dale & Neumy Show. After Neumeier left the station in 2005, Arnold paired with former Boston Globe columnist Michael Holley on The Dale & Holley Show from 10 AM to 2 PM. On February 11, 2008, Entercom put Arnold on the four-person Boston Red Sox radio broadcast team, working with Joe Castiglione when Dave O'Brien was on ESPN. In February 2011, WEEI shifted Arnold to weekend duty while Holley became co-host of the Big Show during afternoon drive time. Arnold subsequently hosted a Sunday morning talk show on WEEI with Steve Buckley. On February 28, 2018, the show was renamed the Dale and Keefe show after long time co-host Michael Holley announced at the 5 o'clock hour that he would be leaving WEEI immediately after the show to pursue a full time television role with NBC Sports Boston. It was an emotional time for Arnold and Holley after spending 10 years together as radio partners and best friends on and off the air. Holley is a close family friend of the Arnold family and attended Dale's son's Taylor's wedding in New Orleans in October 2015. His son Taylor Arnold is a professor at University of Richmond. Arnold's voice can be heard during several NFL Top 10 and A Football Life documentaries on the NFL Network. In the 2011–12 season, Arnold returned to NESN as the in-studio host for Bruins broadcasts, anchoring pregame, intermission and postgame coverage. On April 1, 2014, WEEI-FM relaunched The Dale & Holley with Keefe Show from 2-6 PM. Arnold worked without a contract but, after the show's Nielsen ratings improved 59 percent. was given a multi-year contract in January 2015. From November 2014 to November 2016, Jerry Thornton of Barstool Sports was added as the third host and comedian. He would later return to Barstool Sports full time. Veteran radio host Rich Keefe of WBZ-FM and #DORK Podcast was hired to replace Thornton. Daily and Weekly Guests of the Dale and Holley with Keefe show include Terry Francona, Mike Milbury, Bill Belichick, Michael Irvin, Peter King, Patrick Chung, Matthew Slater, Dont'a Hightower, Vince Wilfork, Chris Mannix, Jackie MacMullan, Trent Dilfer, and Pierre McGuire.
Personal life
Arnold lives in Bellingham, Massachusetts with his wife, Susan. They have three children, Taylor, Alysha and Brianna. Arnold grew up in Maine and Minnesota prior to attending Bowdoin College.
Arnold's most famous line as a play-by-play announcer came in a 1988 game at Sullivan Stadium between the Patriots and the Indianapolis Colts when Doug Flutie ran in the winning touchdown in the final 30 seconds; the crowd erupted and Arnold described the scene as "This place has gone icky balooky!"
