for "nightline," geo benitez in buffalo, new york. >> it novelist jen mcclurery weather 90% of humans wouldn't know how to start a conversation. tune into "good morning america" first thing tomorrow. as always we're online 24/7 on our "nightline" took page and abcnews.com. good night, america. >>> the "insider," your 24/7 celebrity conversation. >> knowing now what josh was hiding, it wasn't right. >> jill and jessa duggar's motional breakdown. over josh's secret life. >> as his wife anna spea out for the first time. feeling, i would turn a mess

here's abc's geo benitez. >> reporter: as many reveal what they got for christmas one of the year's hottest gifts leaving many in the hospital. wipeout after wipeout. even professional athletes like baseball player dan uggla hitting the ground. and this u.s. representative taking to twitter to show off his hoverboard injury. we've seen the fires linked to hoverboards. the consumer products safety commission now investigating 21 fire incidents across the country. got a hoverboard for christmas? might want one of these. major airlines banning the devices from flights for fear of the batteries catching fire. >> i was surprised. i didn't think i would get injured that badly. >> this thing goes so frickin' fast! >> reporter: teen xavier documented his first ride. he falls twice, bloodyi his knee. the cpsc says it has received dozens of reports of injuries and is expecting that number to grow. experts urge everyone to wear proper safety gear before taking one for a spin. >> if you want to be taking care of yourself, get wrist guards, helmet. >> reporter: for "nightline," geo benitez in new york.

abc's geo benitez explains. >> reporter: if you were dreaming of an idyllic white christmas -- i'm dreaming of a white christmas . >> reporter: you may be out of luck. over the weekend in new york, high temperatures were right around average. for the month of may. holiday shoppers picked out christmas trees in shorts. the middle of a buffalo blizzard. the temperature right now, it feels like 1 degree. and behind me, that is a car. completely buried in snow. and take a look at this spot right now, no snow. in fact, buffalo hit a record high today of 71 degrees. on december 14 the. in which i, the shirtless runner who turned heads and went viral, with a little help from wgn-tv. >> i love running in the rain. and i'm also single. >> reporter: this month over 1,000 high temperature records have been tied or broken across the country. the cause? experts say the band of cold air around the arctic called the arc tig oscillation has stayed near the north pole, keeping the cold at bay for much of the u.s. in some places it's a different kind of extreme. over the weekend, bellemont, arizona, took the

here's abc's geo benitez. >> reporter: as many reveal what they got for christmas one of the year's hottest gifts leaving many in the hospital. wipeout after wipeout. even professional athletes like baseball player dan uggla hitting the ground. and this u.s. representative taking to twitter to show off his hoverboard injury. we've seen the fires linked to hoverboards. the consumer products safety commission now investigating 21 fire incidents across the country. even tweeting this warning. got a hoverboard for christmas? might want one of these. major airlines banning the devices from flights for fear of the batteries catching fire. >> i was surprised. i didn't think i would get injured that badly. >> this thing goes so frickin' fast! >> reporter: teen xavier documented his first ride. he falls twice, bloodying his knee. dozens of reports of injuries and is expecting that number to grow. experts urge everyone to wear proper safety gear before taking one for a spin. >> if you want to be taking care of yourself, get wrist guards, helmet. >> reporter: for "nightline," geo benitez in new york.

r "nightline," geo benitez in >> it was novelist jen mcclurery who said, if it weren't for the weather 90% of humans wouldn't know how to start a conversation. tune into "good morning america" first thing tomorrow. as always we're online 24/7 on

for "nightline," geo benitez in >> it was novelist jen mcclurery who said, if it weren't for the weather 90% of humans wouldn't know how to start a conversation. tune into "good morning america" first thing tomorrow. as always we're online 24/7 on our "nightline" took page and abcnews.com. good night, america. tom: now at 11:00, democratic presidential candidate bernie sanders campaigns in the granite backing the front runner.

geo benitez reports from boston on what some have called the college rental ghettos. >> a lot of fun times on this block. >> absolutely. >> reporter: like many college kids josh goldenberg was excited about his newfound freedom after moving off campus in his sophomore year at boston university. >> i just think about the major impact that that place had on my life. >> reporter: while the house looks immaculate today, josh says back in 2012 it was very different when he lived there. >> it looked brokendown. it was a mess. not ept kept up. >> reporter: josh's father david was alarmed too. >> the place was clearly not maintained. but we didn't want to hover and helicopter too much over josh. >> reporter: josh was asleep in his cramped attic room when a fire broke out on a january morning in 2012. house is on fire? >> yes, completely. >> reporter: josh was trapped in the attic as the house was engulfed in flames. he jumped from his third floor window. >> i hit the ice. in the driveway. >> reporter: josh spent two weeks in a coma. and he says he still suffers the effects of major head trau

. >> reporter: for "nightline," geo benitez in new york. >> remember the good old days when people actually walked places? it was the late comedienne joy adam hot said, if it weren't for the fact that the tv set and the