Wintering Bees in Cellars

This practical bulletin offers a concise, step‑by‑step guide for beekeepers who want to protect their colonies through the cold months by using a cellar as a winter home. Written by experienced apicultural experts, it explains how a well‑insulated underground space can keep hive temperatures above the critical 52 °F threshold even when outside lows dip to 25 °F. Readers learn the essential preparations—drainage, moisture control, and proper placement of hives—before the bees are moved in late November.

The guide also compares cellar wintering with traditional outdoor methods, showing where each approach works best based on regional climate zones and a handy map of the United States. It includes simple field tests for assessing a cellar’s suitability and tips for feeding, ventilation, and timing the spring release when pollen and nectar return. By following these instructions, beekeepers can expect healthy, active colonies emerging from winter without the excessive losses common in poorly managed hives.