Are you feeling clueless about texting abbreviations? Did you receive a text or email with R&D, or maybe you saw R&D on one of those social media sites like Facebook, Twitter, or Google Plus, and your problem is that you have no idea what R&D means? That can be frustrating and/or embarrassing, but it's no problem!
Most / Least Educated Cities in AZ. The average temperature of Vernon is 51.76Â°F, which is much lower than the Arizona average temperature of 65.97Â°F and is lower than the national average temperature of 54.45Â°F.
Arizona Weather > Sierra Vista Weather. Sierra Vista, AZ climate is warm during summer when temperatures tend to be in the 70's and cold during winter when temperatures tend to be in the 40's.