A little vitamin D

It is January 30th and the temperature outside is 72.  How can it go from 32 degrees on Thursday to 72 degrees only three days later?  Now don't get me wrong I'm not complaning it feels great outside but where did this heat come from, and is it gonna stay?  This whole weekend was really warm and beautiful outside so me and my family took advantage of it.  We have been outside enjoying the weather all day.  Saturday we spent the day in the yard teaching my little brother and cousin how to throw and catch a baseball.  Today, while they others were playing around in the yard with the soccer ball, me and my mom did the unthinkable.  We layed on a blanket in the driveway and got some sun.  I know, I still cannot believe that it was warm enough in January that we could soak up a little vitamin D.  Some people might be worried about global warming, but this weekend me and my family embraced it.