Lily's Garden by Deborah Kogan Ray follows a girl in Maine through a year of gardening and writing to her grandparents. There is a page for each month, and a little sidebar of facts about different foods or a recipe. It's a wonderful book to start talking about where your food comes from or to inspire some home gardening.
Bird, Butterfly, and Eel by James Prosek, is a lyrical science book about migration and life cycles. A great book for this time of year!
When the Root Children Wake Up by Audrey Wood, is a retelling of the story Sybelle V. Olfers, with new artwork by Ned Bittinger. Although the story would probably fit best in a Spring basket, it portrays the entire cycle of the seasons so it could work at any time. Hypatia is loving books about fairies right now, but she wasn't quite convinced by this one, as she kept asking "are these real fairies?".
Rainy Morning by Daniel Manus Pinkwater, is a totally ridiculous and funny story of an older couple taking in first one animal, then another, then another, then people, on a rainy morning. The book really made the kids laugh.
Clouds by Anne Rockwell, was a selection for our science study about the weather, but it really stood out for quality. I generally like all of Anne Rockwell's books, and this is no exception to that rule. A great explanation of clouds, with great illustrations.