A February to remembrrr in L.A.: It never even reached 70 degrees – Los Angeles Times

https://www.latimes.com/local/lanow/la-me-ln-cold-february-20190228-story.html?outputType=amp#referrer=https%3A%2F%2Fwww.google.com&_tf=From%20%251%24s

Insulating your home especially windows is important during hot and cold weather. Windows are openings that energy exits from the home. Use energy efficient window coverings and open windows at the right temperature to allow fresh air in.