I've ridden from as low as 14F to as high as 125F. I avoid rain (don't want to risk damage to the e-bike), snow and ice (working on a "winter" bike though) and high winds, although that's more about crosswinds than headwinds. I have an entire closet full of seasonal clothing and usually have a day bag for the extra layers on those big temp swing days. My commutes are only about 4 miles each way so it's not like I have to endure the weather for a really long period of time so I don't have an "ideal" temp, really.
