I've been wanting to get a new wireless indoor/outdoor thermometer - the one we have doesn't work anymore. I got it for Xmas last year and I'll probably get a new one this year. I've looked at them online and they have ones with up to three remote sensors. I'd like one of those, but I can't justify spending the extra money. Believe it or not, but different areas of the yard can be different climates.
I've had conversations with serious gardening friends and they've told me about different areas of their yards being different temperatures and plants that thrive in the back yard, but not in the front - and I'm starting to believe the same is true about our yard.
I didn't pay much attention to the temperature when I woke up Thursday morning, but it was probably close to freezing. When I got the paper about 5am, there was frost on the ground. It wasn't until I got home from work that I was able to survey the damage the frost might have done. I've got a few tropicals by the pond that I knew wouldn't look good - hidden ginger, banana plant, etc - so I wasn't concerned about that. The vegetable garden looked fine - even the garlic, which is supposed to die back in the winter. It wasn't until I got to the front yard I notice that our asiatic(?) lilies showed some signs of frost damage - that's really the only thing I saw. I don't have multiple thermometers in the yard yet, but from what I've seen, the front yard is going to be colder than the back. The back has the pond and is a lot more sheltered with the house, garage, trees, etc. The front yard is mostly wide open - including the fact that the canopy of oaks that line our street, ends with our yard - the north side of our yard, where all our plantings are right now, is treeless and and exposed.
I wasn't expecting the frost, so I didn't protect the house plants I still have outside. To my surprise, everything is doing fine, including the night-blooming cereus, which I think might be trying to bloom. We've got near-freezing weather forecast for the weekend and maybe beyond - I just need to remember to bring in a few plants and everything will be fine.