Summer workers: 15–38 days. Winter workers: 150–200 days, often 7+ months, record 304 days. Queen: 1–2 years, can exceed 7 years. Drones: 21–90 days (Remolina & Hughes 2008; Otis 2023; UF/IFAS; Schaumann et al. 2024).
Honey bee lifespan
The honey bee lifespan depends on which bee you mean and when she was born. A colony of western honey bees (Apis mellifera) contains three kinds of adult — one queen, tens of thousands of female workers and, in spring and summer, a few hundred males called drones — and each has its own life expectancy. On top of that, workers come in two seasonal versions: short-lived summer bees and long-lived winter bees.
Here's the short version from the research literature:
- Workers: 15–38 days in summer and 150–200 days in winter, on average (Remolina & Hughes 2008).
- Queen: 1–2 years on average (Remolina & Hughes 2008); her life "can exceed seven years", but her egg laying drops sharply after one or two (UF/IFAS).
- Drones: reported lifespans run from 21 to 90 days, depending on season and place (Schaumann et al. 2024).
So how long do honey bees live? A summer worker has about a month; a worker raised for winter can see half a year; the queen can outlive thousands of her daughters. The calculator above works out which kind of bee you have from the month she emerged and the hemisphere you're in, then gives the sourced range and the dates her life is most likely to end.
Lifespan here means adult life — from the day the bee chews out of her wax cell. Before that she spent 16 (queen), 21 (worker) or about 24 days (drone) developing from egg to adult (Ellis 2015). The bee life cycle page shows each stage, and the honey bee brood calculator dates them for your own frames.
How long do honey bees live in summer vs winter?
This is the biggest single influence on how long honey bees live. Workers that emerge in spring and summer live 15–38 days on average (Remolina & Hughes 2008). It is rare for one of them to reach 50 days, and once they start foraging, "very few worker bees live more than two weeks" (Otis 2023). Workers raised in late summer and autumn — winter bees — live 150–200 days on average (Remolina & Hughes 2008) and "frequently live for 7+ months" when healthy, with a record of 304 days (Otis 2023).
Summer bee vs winter bee lifespan
| Summer bee | Winter bee | |
|---|---|---|
| Average adult life | 15–38 days | 150–200 days |
| Longest recorded | rarely 50 days (Otis 2023) | 304 days (Otis 2023) |
| When she emerges | spring and summer | late summer and autumn |
| Jobs | change with age: cleaning, nursing, building, guarding, then foraging (deJong 2024) | no fixed schedule: keeping the cluster warm, feeding, tending the queen (deJong 2024) |
| Body | brood-food glands shrink with age; low reserves by foraging age | high vitellogenin and storage proteins, brood-food glands kept, enlarged fat bodies (Otis 2023; deJong 2024) |
| What ends her life | foraging flights wear her out | spring: brood rearing and foraging resume, and she dies by late spring (Otis 2023) |
Diutinus bees: what makes a winter bee
Winter bees are sometimes called diutinus bees, from the Latin for "long-lasting". Nothing about the egg decides it. What changes is the colony around the young bee. In autumn, Otis (2023) explains, "bees within their colony experience shrinking amounts of incoming pollen, they rear fewer larvae, and the amounts of sealed brood and brood pheromones decline." In some newly emerged bees, the brain glands then don't switch on juvenile hormone; their brood-food glands stay undeveloped, vitellogenin and other storage proteins build up, and they stay quiet in the hive rather than progressing to nursing, guarding and foraging.
The result is a bee built to last. Winter bees keep their brood-food glands working as they age and carry enlarged fat bodies, energy reserves for months of heat-generating shivering (deJong 2024, citing Brejcha et al. 2023). They also fly far less. Researchers link a worker's natural death to a lifetime flight distance of about 800 km (Winston 1987), and a bee stuck in a winter cluster takes far longer to reach it (deJong 2024).
When does a summer bee become a winter bee?
Colonies shift gradually. In Lloyd Harris's study in Manitoba, Canada, bees were marked as they emerged every 12 days from 14 July to 30 October. Every cohort that emerged between 14 July and 19 August died before the end of October. The cohort marked on 31 August was the first with long-lived bees, each September and October cohort had a higher share, and the cohorts of 18 and 30 October were 100% winter bees. By spring all the marked bees had died by late May (Otis 2023).
The timing depends on pollen. In Heather Mattila's follow-up in Ontario, colonies with pollen traps (cutting the pollen coming in by 60–90%) turned more of their bees into winter bees sooner and stopped rearing brood earlier, while colonies fed extra pollen kept rearing brood and produced about 40% more bees in the fall (Otis 2023). Because there is so little brood late in the season, about half of a colony's winter population has often already emerged by mid-September (Otis 2023).
The calculator turns these findings into month classes for the Northern Hemisphere — March to August "summer type", September "could become a winter bee", October "winter bee" — and treats November to February as broodless months in cold climates. Southern Hemisphere months are shifted by six months.
| Month emerged | Northern Hemisphere | Southern Hemisphere (shifted) |
|---|---|---|
| January | Winter (little or no brood) — 150–200 days | Summer bee — 15–38 days |
| February | Winter (little or no brood) — 150–200 days | Late-summer bee — 15–38 days |
| March | Summer bee — 15–38 days | Could become a winter bee — 15–200 days |
| April | Summer bee — 15–38 days | Winter bee — 150–200 days |
| May | Summer bee — 15–38 days | Winter (little or no brood) — 150–200 days |
| June | Summer bee — 15–38 days | Winter (little or no brood) — 150–200 days |
| July | Summer bee — 15–38 days | Winter (little or no brood) — 150–200 days |
| August | Late-summer bee — 15–38 days | Winter (little or no brood) — 150–200 days |
| September | Could become a winter bee — 15–200 days | Summer bee — 15–38 days |
| October | Winter bee — 150–200 days | Summer bee — 15–38 days |
| November | Winter (little or no brood) — 150–200 days | Summer bee — 15–38 days |
| December | Winter (little or no brood) — 150–200 days | Summer bee — 15–38 days |
In warm climates where colonies rear brood all year, the line between summer and winter bees blurs; these month classes are for regions with real winters.
Western honey bee lifespan by caste
The western honey bee lifespan differs most of all between castes. One line each, with links to the full pages:
| Caste | Typical adult lifespan | Egg to adult | More |
|---|---|---|---|
| Worker (female) | 15–38 days summer; 150–200 days winter | 21 days | Worker bee lifespan |
| Queen (female) | 1–2 years; can exceed 7 years | 16 days | Queen bee lifespan |
| Drone (male) | 21–45 days spring–summer; 21–90 reported | about 24 days | Drone bee lifespan |
Sources: Remolina & Hughes 2008; UF/IFAS; Schaumann et al. 2024; Ellis 2015. Animal Diversity Web gives a similar picture: queens usually 2–3 years and some 5, drones 4–8 weeks at most, workers a few weeks or a few months in winter.
Why such a gap between queens and workers, when both are female and grow from the same kind of egg? The difference is food: larvae destined to become queens are fed royal jelly for their whole larval life of five days, while worker larvae switch to a mix of honey and pollen after three days (FAO). A queen then spends her life inside the hive, protected and fed, doing the one thing she's built for — laying up to 1,500–2,000 eggs a day (FAO). Workers take on every risky job.
Colonies outlive their bees
A colony outlives all of its members. Workers replace each other every few weeks, and when the queen fails the workers raise a new one, so a healthy colony can carry on for years. That's why "how long does a hive last" is a different question from how long do honey bees live for; the bee hive lifespan page covers it.
How a colony's numbers change through the year
The individual bees are short-lived, but the colony's size follows the seasons. In a healthy managed colony in southern Ontario, the population climbs from about 7,000 bees in late March to more than 50,000 by mid-June, stays high through the summer and declines through autumn once brood rearing slows in September (Otis 2023). FAO describes an average colony as one queen, 20,000 to 80,000 workers and 300 to 800 drones, plus about 5,000 eggs and 25,000–30,000 developing young. Every one of those workers is replaced several times over a summer, which is why the colony can grow so fast despite each bee living only weeks.
Are honey bees living shorter lives than before?
In the laboratory, yes. Anthony Nearman and Dennis vanEngelsdorp at the University of Maryland set out to test whether giving caged bees water helped them live longer (it did). While reading the history of cage studies, they noticed something else: "the median lifespan of caged honey bees has been declining in the US since the 1970's, from an average of 34.3 days to 17.7 days" (Nearman & vanEngelsdorp 2022). Their search found 111 cage studies published between 1970 and 2019.
This honey bee lifespan study matters because cage trials are how researchers test pesticides and diseases. The authors then used an established colony model, BEEHAVE, to ask what a 50% shorter worker life would mean for a hive. Colonies produced less honey and died sooner, and in a beekeeping operation that replaces dead colonies every year, the model predicted annual losses of about 33% — close to the winter losses US beekeepers actually report (Nearman & vanEngelsdorp 2022).
What's behind it isn't known. The authors suggest genetics may play a part, alongside low-level viral contamination and pesticide exposure while bees are still larvae, and they recommend that future cage studies report the virus levels in their source colonies. Keep the limits in mind: this is about bees kept in cages, not a direct measurement of bees in field colonies, so it doesn't change the field figures used by the calculator.
Do honey bees live longer now or shorter?
The cage evidence points to shorter, and the authors connect it with falling honey yields per colony over the same five decades (Nearman & vanEngelsdorp 2022). In the field, Varroa mites — which arrived in North America in 1987 — spread deformed wing virus, which "usually kills" an infected bee "within a few weeks" (Otis 2023). Healthy winter bees matter most here: mite populations explode in August and September, just as colonies are rearing the bees that must survive the winter (Otis 2023). The varroa mite page in this series explains the mite's life cycle. The mites breed only inside capped brood cells, and because drone cells stay sealed longer than worker cells (about 14 days versus 12; Ellis 2015, FAO), more young mites mature in drone cells — about four versus two (Otis 2023). In mite-susceptible colonies the mite population is barely noticeable in spring, "conspicuous" by August and seems to have "exploded" by September. Many beekeepers wait until the autumn honey flow ends before treating, and Otis asks whether that is too late for the winter bees being raised at that time.
How this honey bee calculator works
- Workers: the month class (summer, late summer, could become a winter bee, winter, broodless) comes from the Manitoba and Ontario studies reported by Otis (2023). Summer-type bees get 15–38 days; winter bees 150–200 days; September bees the full range 15–200 days because either can happen.
- Queen: 1–2 years whatever the month — the season a queen emerges doesn't change her lifespan in the sources we found.
- Drones: March–August emergence gives 21–45 days (study averages from France and Japan); September–October gives the 75–90 days recorded for late-season drones in Japan, with a warning that colonies in cold climates evict drones in autumn; November–February gives "not normally raised" (Schaumann et al. 2024).
- Dates: we assume the bee emerged on the 15th of the month this year and add the lifespan range to give the expected end-of-life window.
- Hemisphere: the studies are from Canada, the US, France and Japan. For the Southern Hemisphere we shift the months by six, which is our assumption.
- Same numbers everywhere: every bee page on this site uses one shared data set, so a summer worker gets 15–38 days here, on the bee lifespan calculator and on the worker bee timeline.
Averages hide a lot of variation: weather, forage, disease, mites and the colony's needs all shift individual lives up or down.
Frequently asked questions
What is the honey bee lifespan?
Workers live 15–38 days in summer and 150–200 days in winter; queens 1–2 years on average (Remolina & Hughes 2008); drones 21–90 days depending on season (Schaumann et al. 2024).
How long do honey bees live in summer?
Workers live 15–38 days on average and rarely reach 50 days; once they start foraging, few live more than two weeks (Remolina & Hughes 2008; Otis 2023).
How long do honey bees live in winter?
Winter bees live 150–200 days on average, often more than seven months, with a record of 304 days (Remolina & Hughes 2008; Otis 2023).
What are diutinus bees?
Another name for winter bees: workers raised in late summer and autumn that build up storage proteins and fat and live for months instead of weeks (Otis 2023; deJong 2024).
When are winter bees produced?
From late August into October in the Manitoba study: the first long-lived bees emerged on 31 August and every bee emerging in late October became a winter bee (Otis 2023).
How long does a western honey bee live?
The western honey bee (Apis mellifera) worker lives weeks in summer and months in winter; its queen lives 1–2 years on average.
Do honey bees live longer now or shorter than in the past?
In laboratory cages, US studies show median lifespans falling from 34.3 days in the 1970s to 17.7 days (Nearman & vanEngelsdorp 2022). The cause is unknown and field colonies weren't measured.
Why do summer honey bees die so fast?
Foraging. A bee starting to forage lives about seven more days on average (Dukas 2008), and workers die of exhaustion after flying about 800 km (Winston 1987).
How long does it take a honey bee to develop?
16 days for a queen, 21 for a worker and about 24 for a drone, from egg to adult (Ellis 2015; FAO).
How long do honey bees live without a queen?
As long as their normal lifespans — but no new workers are born, so a queenless colony shrinks as the workers die unless they raise a new queen from young larvae (FAO).
Does the hemisphere change the answer?
Only the months. Winter bees are raised in your autumn, so in the Southern Hemisphere they emerge around March–April rather than September–October (our six-month shift).
These calculators give estimates from research and extension figures, for education. Bees are important pollinators — never spray a swarm or a colony. For a swarm or bees in a wall, contact a local beekeeper, a bee-removal specialist or your Extension office (Mississippi State; UGA Extension). If a sting causes trouble breathing, swelling of the face or throat or faintness, call emergency services (UC IPM).