Wine Not? Warm Summer Days, Cool Summer Nights

What exactly does the phrase, “warm summer days, cool summer nights” mean? While we were in California, we experienced the coastal fog that can often bring some regions from an afternoon high of 85 to a nightly low of 55. But that wasn’t enough for us. We wanted to explore what elevation can also do to this severe temperature differential. What did we find? About a 15 degree difference from the coast and just 4 miles into the mountains and wilderness (even though we were 1,000 higher!) Plus it was an excuse to get a hike in. Disclaimer: I’m not in as good of shape as I use to be, hence the out-of-breathness at the top of the hike.