How Cold is too cold to paint?

The days are getting warmer and it is staying sunny longer, so why does my professional house painter tell me I still have to wait before painting my house?

This article from Consumer Reports has some great information on the why's

https://www.consumerreports.org/painting/how-cold-is-too-cold-to-paint-outside/?fbclid=IwAR2vu9aLc3-7ecfEg6W5Nf_O6LnA5qSaaE5XojzDwq4LjlqgQDgAlCaY3Ck