Very cold in the mid-30s with our first patches of frost this fall. The extra daylight in morning is great but it was weird riding home in the dark yesterday and I was afraid that the battery on my light might not make it (but it did). I am going to have my usual reverse the pattern for using my light -- running it on the medium setting in morning and low in afternoon. Tried running it on medium setting both ways yesterday and the low-battery indicator came on about halfway home in the afternoon, so I ran it on low this morning and it was fine with the extra daylight.