Thank you for your feedback.

Thank you for your feedback. We believe that the author had meant that Beltane was the halfway point between the spring equinox and the summer solstice, rather than halfway between the starting points of the Celtic spring and summer seasons (which are Imbolc and Beltane, as you had mentioned). However, we have made some revisions to the text for clarity and accuracy, which we hope will help. Thank you for your interest in The Old Farmer's Almanac.