Hargeisa during the early 80's was cold aswell like Addis, when the city was surrounded by forests. Ninkii tegey umbaa tegey and in 3 occassion that I've heard of there was snow. Today its only hail and not snow. To this day welibana during august/september/october the temperature in early mornings in Hargeisa can reach 3-4 degrees celcius which is around 18 fahrenheit. The same thing with Sanaag. People must remember that the Ethiopian highlands that starts in central Ethiopia ends in waqooyi particularly in Sanaag.
ok. So that why northwest is a highland. Yeah I heard from some reer koonfur odayaal that hargeisa is cloudy besides riyaax al mawsimiya from mediterranean and your see is getting colder. I remember all the dead fishes of somaliland because of the freezing water.