CannaGLAP

Grow cannabis in Quincy, MA

Growing cannabis in Quincy: easy summer heat, and a hard place to dry a harvest

Heat is seldom the trouble for a Quincy tent. The Hingham station, about 5 miles away and only 35 feet above sea level, averages an 83°F July high, and 90°F turns up on only about 6 days all month.

Moisture is another matter. Humidity climbs from 69 percent in June to 77 in August, holds at 76 in September and is still about 70 in October, the month an outdoor harvest usually hangs to dry. So the real question is not whether your plants can flower here. It is whether your buds can dry here without turning musty in the jar.

Flowering, drying and curing in damp Quincy air

Mild summers make it tempting to skip the hardware. A tent in a Wollaston apartment or a North Quincy basement rarely overheats, so it is easy to run little more than a small fan, and that is exactly how damp air settles into a canopy. Treat a dehumidifier as standard equipment from July through October, and keep air moving under the leaves as well as across the top.

Give the drying space the same care as the flower room. Plants hung in an open closet in 70 percent air dry slowly, and a slow, warm dry is where mold gets its start. Close the space off, run the dehumidifier for the whole hang, and test the thickest stems, not the thin ones, before you trim and jar. Once buds are jarred, open the lids briefly each day at first and smell for anything musty.

Winter needs a plan of its own. January averages a 22°F low with about 26 freezing nights, and the station counts roughly 115 a year. A heated apartment runs dry once the heat comes on, so the dehumidifier can rest and young plants may want a humidity dome; only an unheated, damp basement needs moisture pulled out in winter. Keep pots off cold floors and schedule the lights over the coldest hours.

Hot spells do come. July and August bring about 10 days at 90°F between them, and a tent near a sunny window can spike on those afternoons. Shifting the light period to the night for those weeks is an easy fix.

Highs and lows: NOAA 1991 to 2020 normals, Hingham station (4.9 miles away). Humidity: Open-Meteo historical model data, average daily humidity in 2024, for the months shown. Planning averages, not a forecast.

Outdoors in Quincy: a short, wet window

Massachusetts allows home growing at your primary residence, with every plant hidden from public places and secured by a lock or a similar security device. Outdoors in Norfolk County, a greenhouse or yard corner can work only if it locks and no public place has a view of the plants. Pop seeds or take cuttings under lights from March 27 to April 10 and move them out on May 8, after the safe frost date and once nights average 45°F.

From there you have about 151 days before the early first frost of October 6. That is short, and its end is wet: September averages 76 percent humidity, and from October on, the average night is under 50°F. Autoflowers and early photoperiod plants, set where morning sun dries the dew, give you the best odds of a clean harvest.

Last spring frost	Apr 25 in a typical year, May 8 to be safe (later only 1 year in 10)
First fall frost	Oct 22 typical, as early as Oct 6 (1 year in 10)
Frost-free season	about 177 days
Nights stay 50°F or warmer	May 22 to Sep 30
Start seeds or clones indoors	Mar 27 to Apr 10
Move plants outdoors	May 8 or later
Season note	Frost can arrive before mid October here: long flowering plants may not finish outdoors

Quincy Center neighbors, private grow notes

Quincy is close quarters: neighbors a wall away, busy blocks along Hancock Street, crowds at Kilroy Square on market day or at Marina Bay for the Maritime Festival. In a city that tight, someone may notice a fan humming or a dehumidifier running all September. What they should never get is the record behind it.

Canna GLAP encrypts the grow journal on the phone before it uploads. Picture a burglar in our server room: the Quincy grow files on those disks would be gibberish to them, and the key is not there to find. Many notes apps leave entries open to the company that runs them; this one leaves the key with you.

What is encrypted: your plants, notes, photos, feed logs and harvests. What is not: account details (such as your email, name and plan), a grow name or town if you type one, your team, and your sensors' names. The full list: what a hacker would get.

Questions growers in Quincy ask

How do I dry cannabis in Quincy's humid fall?

In a closed room with a dehumidifier running the whole time. October still averages about 70 percent humidity outdoors, so hanging plants in an open closet or garage risks a slow dry and mold.

What date should Quincy plants go outdoors?

Move plants out on May 8 or later, after starting them under lights from March 27 to April 10. That leaves about 151 days, since frost can return by October 6.

Is heat a problem for a Quincy grow tent?

Rarely. July averages an 83°F high with roughly six 90-degree days. A dehumidifier will usually do more for your harvest than an air conditioner.

Growing near Quincy

• Grow cannabis in Boston, MA 8 miles
• Grow cannabis in Brookline, MA 8 miles
• Grow cannabis in Cambridge, MA 10 miles
• Grow cannabis in Somerville, MA 11 miles
• Grow cannabis in Brockton, MA 12 miles

All Massachusetts cities · Every state where adults may grow at home