How Long Do Wasps Live? Lifespan, Life Cycle & the NH Season
TL;DR
Wasp lifespan depends entirely on caste. Worker wasps — the ones you see all summer — live roughly 12–22 days. The queen lives approximately 10–12 months and is the only individual to survive winter. Males are short-lived and die after fall mating. In New Hampshire the colony is an annual: founded by one lone queen in late April or May, expanding through summer, peaking in August–September, then collapsing entirely at the first hard frost. Manchester-area colonies persist into late October — about two to three weeks later than inland Concord or Keene — because the airport's frost dates run late under NOAA 1991–2020 normals.
Worker lifespan
~12–22 days
Sterile female workers; the wasps you see foraging all summer; A-Z Animals, corroborated by Scientific Reports PMC8012566
Queen lifespan
~10–12 months
The sole overwinterer; founds the nest alone each spring; UNH Extension / Penn State Extension
Male lifespan
Short-lived; dies after fall mating
Does not overwinter; Penn State / Ohio State Extension
Egg-to-adult development
~28–48 days
Full metamorphosis from egg through larva and pupa to adult worker; Manaaki Whenua / Landcare Research NZ
The wasps bothering your Manchester cookout live only weeks — their queen survives all winter
"When will these go away?" is the question behind almost every search for how long wasps live. The honest answer has two parts: it depends on the caste, and in New Hampshire, it depends on where you live.
The worker wasps — the ones you see darting at your soda and guarding the soffit — live only about 12 to 22 days. They emerge from the pupa, join the foraging force, and die within a few weeks. The queen, by contrast, is the engine of the whole operation. She emerged from last year's colony in late summer, mated, found a protected overwintering site, and spent the winter dormant in an attic, wall void, or under loose bark. She founded this year's nest alone in late April or May. She will live roughly 10 to 12 months in total — far longer than any worker — and she is the only individual to survive the winter. Males are produced late in the season and die after mating. They do not overwinter.
The colony itself is strictly annual. That nest you are watching was not there last year, and it will not be there next year. Only the queen survives — not that queen, but a new one she produced this summer. Old nests are never reused, though a new foundress may return to the same sheltered spot your wall void or soffit offered last season.
In terms of geography: Manchester and the southern tier of Anchor's service area (Rockingham, Hillsborough, Merrimack counties) run about two to three weeks later to first frost than inland Concord, which typically frosts in late September to early October, and Keene, which is similar. Manchester's airport normals put the first hard frost around October 19 at 50% probability or October 29 at 80% probability. That means a colony still active in early October in Manchester may have three more weeks of peak-size, peak-aggression behavior ahead of it — which matters for deciding whether to wait or to call.
Wasp season in southern and central New Hampshire — a frost-calibrated calendar
NH's wasp calendar is governed by spring warm-up and the first hard frost. Because Manchester's airport frost runs late compared with inland areas, southern-NH colonies persist two to three weeks longer than those around Concord, Keene, or the Lakes Region. The wasps most NH homeowners encounter are social species — northern paper wasp (Polistes fuscatus), European paper wasp (Polistes dominula), and yellowjackets (Vespula spp.) cross-referenced from the /yellowjackets/ hub. All share the same annual colony structure: one overwintered queen starts each colony; workers live weeks; the colony peaks in August–September; and the first hard frost ends it. Solitary wasps — mud daubers active all summer, great black wasp and cicada killer from July through August–September — operate on individual adult seasons rather than colony cycles, but their adults are also frost-limited. None of these solitary species overwinter as adults in NH. For Manchester, Nashua, Bedford, Derry, Salem, and the greater Rockingham–Hillsborough–Merrimack area, homeowners should expect social-wasp colonies to remain active and at peak size from mid-August through mid-to-late October, with the timing varying year to year around the NOAA median dates.
Species present in NH
- Northern paper wasp (Polistes fuscatus)
- European paper wasp (Polistes dominula)
- Eastern yellowjacket (Vespula maculifrons) — see /yellowjackets/
- German yellowjacket (Vespula germanica) — see /yellowjackets/
- Bald-faced hornet (Dolichovespula maculata) — see /bald-faced-hornet/
- European hornet (Vespa crabro)
Peak activity
mid-August through mid-September (colony maximum size and maximum aggression)
Service area
First-frost anchor: Manchester first hard frost ~Oct 19 (50%) / Oct 29 (80%) per NOAA 1991–2020 normals; Concord ~Oct 3; Keene ~Oct 1
UNH Cooperative Extension confirms that northern paper wasp mated females 'overwinter individually in protected places such as inside building walls, in attics, or under loose bark' and that colonies collapse at the first hard frost — Resource000532.
Wasp lifespan, life cycle, and the 12-month NH season
Every social wasp colony in New Hampshire — paper wasps, yellowjackets, bald-faced hornets, and the European hornet — follows the same annual arc: a single overwintered queen founds the colony alone in spring, workers take over through summer, the colony peaks in late summer, and the first hard frost kills all but the new mated queens who will start the cycle again next year. Understanding that arc answers the most common questions homeowners ask: how long wasps live, when they go away, and why they get crankier as summer ends.
Worker lifespan
~12–22 days
Queen lifespan
~10–12 months (overwinters as the sole survivor)
Male lifespan
Short-lived; dies after fall mating; does not overwinter
Only newly mated queens survive winter — the founding queen, all workers, and all males die at the first hard frost. The old nest is never reused; each spring begins with a lone overwintered queen building from scratch.
Egg
Hatches in ~5–8 days
The queen (early season) or a worker-tended queen (mid-season) deposits a single egg in each hexagonal cell of the paper comb. Eggs are tiny, white, and attached to the cell wall.
Larva
~2 weeks through several instars
Larvae are legless, grub-like, and entirely dependent on adults for protein — workers hunt caterpillars, flies, and other insects and chew them into a paste for the larvae. Larvae produce a sugary secretion that adult workers also consume, a form of nutritional exchange that reinforces foraging behavior.
Pupa
~1–2 weeks (capped cell)
The mature larva spins a silk cap over its cell and undergoes complete metamorphosis inside. Full egg-to-adult development takes roughly 28–48 days. Newly eclosed workers are pale and soft-bodied for a day before hardening.
Queen emergence (spring foundress)
Late April – early May in southern NH
An overwintered mated queen breaks diapause once overnight lows hold above roughly 50°F. She begins building a small starter nest — sometimes no larger than a ping-pong ball — entirely alone, laying eggs and foraging for protein simultaneously. No workers yet exist to help her.
Colony growth
June through early August
The first workers eclose and take over foraging, building, and larval care. The queen retires to full-time egg-laying. The colony expands steadily — nest cells are added in concentric rings — and foragers shift from all-protein to a mix of protein and sugar as larval demand changes.
Peak and reproduction
Mid-August through mid-September
The colony reaches maximum size. New queens (gynes) and males (drones) are produced instead of sterile workers. Foragers scavenge sugar aggressively — this is the NH cookout and apple-orchard conflict window. Aggression near the nest peaks as the colony is simultaneously at its most defensive and its most resource-stressed.
Collapse
First hard frost — Manchester ~Oct 19 (50%) / ~Oct 29 (80%); Concord ~Oct 3; Keene ~Oct 1
Within roughly one week of the first hard frost, workers, males, and the founding queen die. Only newly mated queens that dispersed from the colony in late summer survive, each seeking a sheltered overwintering site. The nest is abandoned — it will not be reused. A new mated queen may return to the same site next spring, but she will build a brand-new nest from scratch.
12-month NH phenology
NH's wasp calendar is governed by spring warm-up and the first hard frost. Because Manchester's airport frost runs late, southern-NH colonies persist 2–3 weeks longer than those around inland Concord and the Lakes Region. The table below applies primarily to social wasps (paper wasps, yellowjackets) — the species responsible for nearly all NH sting and nest-removal calls.
Jan
dormant
Only mated queens alive, overwintering in attics, wall voids, soffits, woodpiles, and under loose bark; no colony activity anywhere in NH
Feb
dormant
Continued diapause; a warm spell above ~50°F can briefly rouse a queen indoors — this is why a sluggish wasp may appear on a sunny winter day
Mar
dormant
Late-month warming begins; queens in heated attics or south-facing wall voids may stir; still no nest-building activity in southern NH
Apr
building
Queens emerge as lows consistently exceed ~50°F (typically late April in Manchester / Nashua / Bedford); solo foundresses begin constructing small starter nests under eaves, soffits, and in wall voids; colony is single-queen with no workers yet
May
building
Colony in construction; queen both forages and lays eggs alone; first worker brood in development inside cells; nest may reach golf-ball size by month-end; virtually invisible to homeowners
Jun
building
First worker brood ecloses; queen hands off foraging and building to workers; colony expands steadily; still relatively small and low-conflict; a small exposed nest can sometimes be knocked down safely at this stage
Jul
building
Colony expands rapidly; workers handle all foraging (mostly protein for larvae); nest visible on eaves, soffits, grills, playsets; aggression near the nest starts to rise; solitary wasps (cicada killer, great black wasp) also active
Aug
peak
Colony reaches maximum size; sugar foraging begins as larval protein demand drops; NH cookout and apple-orchard encounters peak; first sting reports climb; this is the prime removal window before aggression intensifies further
Sep
peak
Maximum size continues; new queens and males produced; aggression peaks — workers are defensive and food-stressed simultaneously; UNH Extension notes wasps 'may become especially aggressive' as frost approaches; scavenging at trash and recycling is highest
Oct
declining
First hard frost arrives: Concord ~Oct 3, Keene ~Oct 1, Manchester ~Oct 19 (50%) / Oct 29 (80%); workers, males, and founding queen die within ~1 week of hard frost; new mated queens disperse to overwinter; abandoned nests visible but empty
Nov
dormant
All workers dead across NH; abandoned nests remain on structures and begin decomposing; overwintering queens in deep diapause in protected sites
Dec
dormant
Deep diapause; mated queens cold-tolerant via antifreeze proteins; no wasp activity; nest is now a hollow paper shell — not a risk but not reused next year either
NH overwintering
Only newly mated queens survive the NH winter, sheltering in dormancy from roughly October through late April. They may occasionally appear indoors on warm winter or early-spring days — a single sluggish wasp in January is almost always an overwintered foundress roused by indoor heat, not a sign of an active colony. UNH Cooperative Extension confirms that northern paper wasp mated females overwinter in 'protected places such as inside building walls, in attics, or under loose bark.'
- Attics (heated or unheated; south-facing preferred)
- Soffits
- Wall voids (behind clapboard, vinyl siding, cedar shingles)
- Behind shutters and decorative siding trim
- Woodpiles and stacked lumber
- Under loose bark on standing or fallen trees
- Stone walls (gaps between granite blocks)
- Hollow logs and stumps
NH activity calendar
Frequently asked
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