CannaGLAP
Grow cannabis in Queens, NY
Growing cannabis in Queens: the nights that never cool off
The number that matters most to a Queens grower is not the July high. It is the July low. Nights that month average about 72°F at LaGuardia, and August's about 71. A plant that never gets a cool night keeps respiring hard through the dark, and a tent with nothing cooler to draw on just keeps getting warmer.
Which raises a question most grow guides skip: if the night is not cool, what is your dark period actually doing for the plant?
Adults 21 and over: yes. Plant limit: 3 mature + 3 immature per adult; 6 mature + 6 immature per residence.
Secure location, not accessible to under 21s; not plainly visible from public view. Source: NY OCM home cultivation FAQ. Local rules (landlords, HOAs, city codes) can add more; this is a summary, not legal advice.
Running a Queens grow room through a warm year
The usual heat trick, lights on at night, does less here. Outside air in the small hours of a July night is still around 72°F, so venting it into a tent buys a few degrees at best. A grow room in an Astoria walk-up or a Jackson Heights apartment needs its own cooling in July and August: a window air conditioner in the room, or an exhaust duct to a cooler space. Queens sees about 9 days at 90°F or more in July and 6 in August; on those days, dim the light or shorten its run rather than let the canopy cook.
Warm nights hold water, too. Humidity averages 75 percent in July and August and is still about 72 in September before easing to 65 in October. When the lights go off in a humid room, the moisture inside the tent climbs fast. Match the dehumidifier to the size of the space, keep an oscillating fan moving air through the plants, and pay extra attention in late flower, when dense buds trap moisture.
Winter in an old apartment building or row house is uneven. January nights average about 29°F, and the borough sees roughly 62 freezing nights a year. A tent in a Flushing back room can run warm by day and cold by dawn. A heat mat for seedlings and a thermostat-controlled heater in the tent keep the root zone steady.
Heater safety: use one with tip-over and overheat shutoff, plug it straight into a wall outlet (not an extension cord or power strip), and keep it a few feet from tent fabric and plants.
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 40 | 43 | 50 | 61 | 72 | 81 | 86 | 85 | 77 | 66 | 55 | 45 |
| Avg low °F | 29 | 30 | 36 | 46 | 56 | 66 | 72 | 71 | 64 | 53 | 43 | 35 |
| Humidity % | 71 | 68 | 75 | 75 | 72 | 65 |
Highs and lows: NOAA 1991 to 2020 normals, New York Laguardia Airport station (5.7 miles away). Humidity: Open-Meteo historical model data, average daily humidity in 2024, for the months shown. Planning averages, not a forecast.
A long outdoor season, if you have the space
New York requires plants in a secure place that people under 21 cannot get to, and they cannot be plainly visible from public view. A fenced, locked backyard behind a row house can work; a front stoop facing the sidewalk does not. If your space qualifies, the season is generous. Transplant no earlier than April 15. The last frost usually lands around March 26, and after April 6 a late one is rare.
A typical fall brings the first frost around November 25, and it comes before November 10 only about one fall in ten. That gives about 209 outdoor days, enough for full-season photoperiod plants, as long as September's 72 percent humidity is met with wide spacing and steady airflow.
| Last spring frost | Mar 26 in a typical year, Apr 6 to be safe (later only 1 year in 10) |
|---|---|
| First fall frost | Nov 25 typical, as early as Nov 10 (1 year in 10) |
| Frost-free season | about 244 days |
| Nights stay 50°F or warmer | Apr 28 to Oct 26 |
| Start seeds or clones indoors | Mar 4 to Mar 18 |
| Move plants outdoors | Apr 15 or later |
Thin walls, private numbers
In Queens, privacy is about walls. A neighbor on the other side of the plaster in Elmhurst or Corona hears your fan and may catch the smell in the last week of flower. Your log is another matter, the record of how you finally beat a 72°F night. In most apps it sits on a server where the company that runs it can read every entry.
In Canna GLAP, the phone does the encrypting before anything uploads. Every grow record travels as ciphertext. A thief who cracked our servers would carry off scrambled grow records with no way to unlock them. From Long Island City to Flushing, the grow itself stays sealed.
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 Queens ask
Can I grow cannabis outdoors in Queens?
Yes, if the plants are in a secure spot people under 21 cannot reach and are not plainly visible from public view. Each adult may keep 3 mature plants plus 3 immature ones, up to 6 of each per residence.
How do I cool a grow tent in a Queens summer?
Give the room its own air conditioning or vent to a cooler space, because July nights average about 72°F and venting outside air at night does little. Dim or shorten the light on 90°F days.
When does the first frost hit Queens?
Typically around November 25, and as early as November 10 in an early year. That leaves about 209 outdoor days for plants set out from mid April.
Growing near Queens
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- Grow cannabis in North Hempstead, NY 7 miles
- Grow cannabis in Brooklyn, NY 9 miles
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