Winter Beekeeping: How to Get Your Hives Through Winter (US Guide) | Bring Strong Colonies Into Spring

Winter beekeeping is mostly about what you did in late summer and fall. By the time the cluster forms, you can’t fix a mite problem or a small population. What you can still do is protect the colony from moisture, wind, and mice, watch its weight, and feed it if it runs short.

This guide covers the whole US, so it calls out where advice differs between cold northern states and mild southern ones. It’s based on extension guidance from Florida, Minnesota, Alabama, Penn State, and Georgia, and on a 2022 University of Illinois field trial on hive covers. If you’re in your first year, our beginner’s plan for your first beekeeping year shows where winter fits in the calendar.

How bees survive winter

Honey bees don’t hibernate. When temperatures drop, the colony forms a tight cluster around the queen, and the bees in the middle shiver their flight muscles to make heat. They burn honey to do it. The cluster moves slowly across the comb, eating as it goes, usually upward. On mild days, bees leave the hive for cleansing flights, since they won’t defecate inside.

For the full picture, including what bumble bees and solitary bees do, see what do bees do in winter. For beekeepers, the cluster has three practical consequences:

Food has to be next to the cluster. A colony can starve with honey a few inches away if it’s too cold to move to it.
The colony has to be big enough to make and hold heat. Small clusters burn more food per bee and often die.
The bees produce moisture as they burn honey. If it condenses on a cold lid and drips back down, wet bees can’t stay warm.

Preparing your hive for winter

Most of the work happens from August to October. Penn State Extension notes that colonies with large populations and plenty of honey stores have the best chance of surviving winter.

Test and treat for mites in late summer. The bees that get the colony through winter are raised in late summer and fall. If mites are high then, those bees start out weak. Test in August, treat if needed, and test again afterward. Use our mite count calculator to check each result against the seasonal threshold.
Check stores and feed early. If a colony is light in early fall, feed 2:1 sugar syrup while it’s still warm enough for the bees to take it and cure it. UF/IFAS recommends a 2:1 syrup (sugar to water by volume) in fall when stores are short. Our sugar syrup calculator works out how much 2:1 syrup will cover a colony’s shortfall.
Combine weak colonies. A small colony in October rarely makes it to April. Penn State recommends combining light or small colonies with another colony rather than wintering them alone. Two weak colonies make one strong one.
Remove empty supers. Bees can’t heat empty space. Take off supers they aren’t using, and keep the colony in the boxes it can cover.
Fit a mouse guard and reduce the entrance. Mice move into hives as nights turn cold. A reduced entrance also helps a colony guard against robbing in fall.
Set up ventilation before the cold arrives (see below).
Add a windbreak or a cover if you’re in a cold, windy area.

How much honey do bees need for winter?

It depends mostly on how long your winter lasts. UF/IFAS Extension puts it at about 90 pounds for a colony in the North. The University of Minnesota’s northern beekeeping guide tells beekeepers to feed 2:1 syrup in fall if a colony has less than 75 pounds of stored honey. Colonies in milder regions need much less, because they can forage on more days and their winters are shorter.

Region	Approximate honey stores	Typical setup
Cold North (MN, WI, MI, NY, New England)	75 to 90+ pounds	Two or three boxes of bees and honey
Middle states (Mid-Atlantic, Midwest, Upper South)	About 60 pounds	Usually two brood boxes, with the top one mostly honey
South (FL, Gulf Coast, South Texas)	About 30 to 50 pounds	Often one or two boxes; foraging continues on many winter days

The northern figures come from UF/IFAS and UMN. The middle and southern figures are common beekeeper guidance rather than extension numbers, so ask your local club what works where you are.

To estimate stores, count frames of capped honey. A full deep frame of capped honey holds roughly 6 to 8 pounds, and a full medium frame a little less. UGA’s guidance for beginners is to leave about 1.5 frames of honey for every frame of bees and brood.

Feeding bees in winter

The best winter food is the colony’s own honey. Feeding in winter is a backup for colonies that are running short, not a routine.

The key rule: stop feeding liquid syrup once it gets cold. Alabama Cooperative Extension recommends solid feed when temperatures are below 50°F. Below that, bees can’t take syrup down or evaporate it, and the extra moisture can harm the colony.

Feed type	Best for	How it’s used	Watch out for
2:1 sugar syrup	Fall, before cold weather	Top or in-hive feeder	Don’t feed once it’s below about 50°F
Candy board	Northern winters, planned backup	A frame of hard sugar placed directly above the cluster	Needs a rim or shim; make or buy it before winter
Fondant or sugar bricks	Emergency feeding	Slabs on the top bars, over the cluster	Use beekeeping fondant. Baker’s fondant isn’t suitable
Dry sugar (mountain camp)	Quick emergency feeding	Plain white sugar poured on paper over the top bars	Needs an empty rim above; can be messy

Candy boards

A candy board is a shallow frame filled with hardened sugar that replaces the inner cover and sits directly over the frames. The cluster eats upward into it. Candy boards also absorb some moisture. Many northern beekeepers put them on in late fall as insurance, and you can make one or buy one ready-made.

Fondant and sugar bricks

Fondant is a firm sugar paste. You lay it on the top bars directly above the cluster, with a shim or empty rim to make space. Alabama Extension warns that baker’s fondant isn’t the same as beekeeping fondant. Its additives and colorings can upset the bees’ digestion, so use products made for bees or plain white sugar. Sugar bricks (white sugar moistened and dried into blocks) do the same job.

Dry sugar (mountain camp)

In the mountain camp method, you put newspaper over the top bars and pour plain white granulated sugar on top, inside an empty rim. It’s cheap and quick in an emergency. Like other solid feed, it also absorbs some moisture.

When not to feed syrup

Don’t feed syrup in cold weather, and don’t use brown sugar, raw sugar, or molasses. Their impurities can cause dysentery in bees that can’t fly out to defecate. Don’t feed honey from unknown sources either, since it can spread disease.

Pollen patties in late winter

In late winter, colonies start raising brood again, which takes protein. In many regions beekeepers add a pollen substitute patty in late winter, timed to their local spring buildup. Adding pollen too early in the North can trigger brood rearing that the colony can’t keep warm, so follow local advice.

Wrapping and insulating a beehive

Should you wrap a beehive for winter? In cold and moderate climates, the evidence says it helps.

In a 2022 randomized field trial at the University of Illinois, 43 colonies in standard 10-frame Langstroth hives were split into two groups. One group got polypropylene hive covers with top insulation and the other was left uncovered, with the other recommended winter preparations done on both. Covered colonies used less of their stored food and survived at a higher rate. The authors concluded that covers are worthwhile even where winters aren’t extremely cold.

Practical tips:

Cold North: wrap or cover the hive and insulate the top, where most heat escapes. Always pair insulation with an upper vent.
Mid-latitudes: a cover or top insulation still helps, as the Illinois trial suggests.
South: wrapping is rarely needed. Focus on ventilation and on not letting the hive overheat on warm winter days.

Common options include tar paper or roofing felt, purpose-made insulated hive wraps, and rigid foam boards. Whatever you use, don’t block the entrance or the upper vent.

Ventilation and moisture

Moisture, not cold, is the classic winter killer. Warm, damp air rises from the cluster, hits a cold lid, condenses, and drips onto the bees. UF/IFAS advises keeping the hive sheltered from wind while still allowing enough airflow to limit moisture buildup. In cold areas, it says top insulation should be paired with ventilation through an upper entrance, an auger hole, or a ventilation rim.

Ways to manage moisture:

An upper entrance or vent, such as a notch in the inner cover or a small hole drilled in the top box
A moisture quilt: a shallow box with a screened bottom, filled with wood shavings, that absorbs condensation above the cluster
Insulation above the inner cover, which keeps the lid warmer so less water condenses there
A slight forward tilt of the hive, so any water runs out of the front rather than pooling

Winter mite treatment window

Most colonies have little or no capped brood in early winter. Because varroa mites hide under brood cappings, a broodless period is when treatments that only reach mites on adult bees work best. UGA notes that oxalic acid works best when capped brood is minimal, which is usually in winter. The Honey Bee Health Coalition’s varroa guide lists the treatment options and the colony phases they suit.

Use only treatments registered for honey bees, follow the label exactly, and check your state’s rules. A winter treatment is a cleanup step, not a replacement for monitoring and treating in late summer.

Checking hives in winter without opening them

Opening a hive in cold weather breaks the cluster’s heat seal. UGA advises waiting for days above 55°F before opening a hive. Until then, use these checks:

Heft the hive. UF/IFAS describes a lift test. Lift the back of the hive with one hand. If it’s hard to rock forward, the colony likely has enough food. If it lifts easily, it probably needs feeding. Heft the hive in fall so you learn what “full” feels like.
Listen. Put your ear, or a stethoscope, against the side of the hive. A healthy cluster makes a steady, low hum.
Watch the entrance on mild days. Bees making cleansing flights on a warm, sunny afternoon are a good sign.
Clear the entrance. Dead bees and snow can block the bottom entrance. Gently clear it after storms.
Look at the snow. Yellow-brown spots around the hive are from cleansing flights. Heavy streaking on the front of the hive can mean dysentery.

If a hive feels light in late winter, add fondant or a candy board right over the cluster on a calm day, working quickly.

What to do with a dead-out

Even well-prepared colonies die. Inspecting the dead hive can show you why, so you can do better next year.

Bees head-first in cells, with no honey near the cluster: starvation, often with honey elsewhere in the hive that the cluster couldn’t reach.
A small cluster, few dead bees, and white specks on the walls of brood cells: these are varroa droppings, a common sign of a mite-driven collapse.
Wet, moldy frames and dead bees in a soggy mass: a moisture problem.
Sunken, perforated cappings or a foul smell: possible brood disease. Don’t reuse the equipment, and contact your state apiary inspector.

Close up a dead-out so robbing bees and wax moths can’t get in. If the hive died of starvation or mites, clean drawn comb and leftover honey are valuable for new colonies in spring.

Winter beekeeping checklist by month

Adjust the timing to your climate. Northern beekeepers run about a month behind the South at each end of winter.

Month	Tasks
October–November	Final mite check. Finish feeding 2:1 syrup before it’s cold. Fit mouse guards. Remove empty supers. Set up the upper vent or moisture quilt. Wrap or cover hives in cold regions.
December	Leave hives closed. Heft each hive and note its weight. Clear entrances after snow. Treat with oxalic acid during a broodless window if needed.
January	Heft monthly. Listen for the cluster. Add fondant or a candy board to light hives. Order bees and equipment for spring.
February	Check stores often: late winter is when colonies starve, because brood rearing ramps up. Consider pollen patties based on local timing. Assemble new equipment.
March	On the first days above 55°F, do a quick inspection for the queen, brood, and food. Clean or replace bottom boards. Inspect and clean up any dead-outs.

Winter is also a good time to read and plan. See our beekeeping books worth reading for winter study, or gift ideas for beekeepers if you’re shopping for one.

Advanced option: indoor wintering

Some northern beekeepers winter colonies indoors in dark, temperature-controlled rooms. Washington State University publishes a guide to indoor storage. It’s mostly used by larger operations and isn’t something most backyard beekeepers need.

Common questions

Can a hive survive winter without a queen?

Rarely. A queenless colony can’t raise new bees, so it dwindles and usually dies before spring. Check for a laying queen in early fall, when you can still requeen or combine the colony with a queen-right one.

Should I wrap my beehive for winter?

In cold and moderate climates, yes. A 2022 University of Illinois trial found that covered hives used less stored food and survived better. Always keep an upper vent open so moisture can escape. In the Deep South, wrapping is rarely needed.

When should I stop feeding sugar syrup?

Once temperatures fall to about 50°F, when bees can no longer take down and cure syrup. Alabama Extension recommends solid feed such as fondant, a candy board, or dry sugar below that temperature.

Can I open my hive in winter?

Only briefly, on calm days above about 55°F (UGA’s guideline), and only if you need to, for example to add emergency feed. Opening the hive in cold weather breaks the cluster’s heat.

How do I know if my bees are alive in winter?

Listen against the side of the hive for a steady hum, watch for cleansing flights on mild sunny days, and heft the hive to see whether its weight is dropping gradually as the bees eat their stores.