Last and first frost dates in Manchester (United States)

When is the last frost in Manchester (United States)?

The last frost in Manchester (United States) usually comes around 22 April: that is the median of 2016–2025, so in about half of those years the last night at or below 0 °C came later. Hardy crops start before it and frost-tender ones only after it: in the table below arugula can go into open ground from 1 April, while corn waits until 9 May. The first autumn frost follows around 2 November, about 194 days later: harvest or cover frost-tender crops before then.

When to sow and plant

Planting out: a week after the last frost once the soil is warm enough for the crop; frost-hardy crops three weeks before it; an unheated greenhouse three weeks earlier. Seedlings are sown so they are ready on that day. Each window starts on the Greenly calendar date and ends on the last day that still leaves the crop’s days to harvest (from its card) before the average first autumn frost, plus six weeks of picking for crops harvested over weeks (tomatoes, peppers, aubergines, cucumbers, courgettes, pumpkins, watermelons, beans) — our rule; earlier in the window is safer.

When the soil warms up in Manchester (United States)

The day the top 7 cm of soil first averages each temperature over a week, median of 2016–2025 (ERA5 via Open-Meteo). The soil reaches 10 °C 1 day after the last spring frost and 15 °C 28 days after it.

Frost dates near Manchester (United States)

Of the nearest cities on our list, the last spring frost ends earliest in Boston (9 April) and latest in Concord (22 April).

Seeds, seedlings and markets in Manchester (United States)

Within 15 km of Manchester (United States) OpenStreetMap lists 6 garden centres, 1 farm-supply shop and 8 farm shops (collected 28 October 2026). The nearest garden centre to the city centre is Giant Landscaping Materials, 3 km away.

• Giant Landscaping Materials — garden centre
  Hanover Street 1071, 03104 Manchester · 3 km · giantlandscaping.net
• Osborne's Agway — farm supply
  Cinemagic Way 16, 03106 Hooksett · Mon–Fri 08:00–18:00; Sat 08:00–17:00; Sun 09:00–16:00 · 6 km · osbornesagway.com
• Farm & Flower Market — farm shop
  Webster Street 15, 03104 Manchester · Mon–Sun 07:00–19:00 · 2 km
• Demers Garden Center — garden centre
  South Mammoth Road 656, 03109 Manchester · 6 km · demersgardencenter.com
• Catbird Corner Flower Stand — farm shop · sells: vegetables, flowers
  Goffstown Back Road 304, 03045 Goffstown · Apr–Oct Wed, Sat–Sun 10:00–18:00 · 5 km · catbirdcorner.com
• Amherst Garden Center — garden centre
  NH 101 305, 03031 Amherst · 15 km

• Where to buy seeds and seedlings in Manchester (United States)
• Selling your own harvest in the United States

Places: © OpenStreetMap contributors, ODbL.

Weather in Manchester (United States) by month

Average weather in Manchester (United States) over 2016–2025: the warmest month is July. Months that average 20 °C or more by day: May–September (20.1–28.9 °C). Nights average below 0 °C in December–March (-7.3–-2.8 °C). About 1191 mm of rain falls in a year, on 127 days; October is the wettest month (121 mm) and February the driest (79 mm).

Average of the daily highs and lows, rain per month and days with at least 1 mm (ERA5 via Open-Meteo, the same grid cell as the frost dates).

Planted in autumn

From a month before the first autumn frost, so the roots grow before winter, to the late-planting limit on each crop’s page (about two weeks before the ground freezes, by ten years of weather).