Coldest extended ride I have made was from Death Valley to Amarillo Tx. Left DV at 5pm, checked ahead for road conditions thru Flagstaff all clear and 7 degrees as we passed thru at midnight. Warmed all the way up to 18 by the time we got to Gallup, pulled into Amarillo at 1pm next day 31 degrees. At times we had to remind ourselves how much fun we were having.