Brrrrrrrrrrrr! Are you Kidding me?!?!

The weather this year has been out-of-this-world COLD! Holy crap! I've been a resident of South Dakota all my life and it does get cold here, but down to an air temperature of -20 F?! I think I just said 'South Dakota' in that last sentence, NOT Siberia.


Above is a daily graph I make with `rrd-tool` using Dallas 1-wire DS18B20 sensors I have around my house and outside. I'm just absolutely blown away; I've seen combined temperatures and wind speeds (wind chills) reach -20 to -40 F before around here, but it's just hard re-call actual air temperature reaching that.