GreenlyWhen to plant peas in Grand Forks: 19 April – 3 August
In Grand Forks, peas: sow straight into the bed from 19 April to 3 August.
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Peas in Grand Forks: soil, season and weather
Peas tolerates light frost, so it goes in three weeks before the last frost (10 May); the top 7 cm of soil has reached its minimum of 4 °C by then (around 19 April).
| Last spring frost | 10 May |
|---|---|
| Top 7 cm of soil at 4 °C | 19 April, 21 days before the last frost |
| First autumn frost | 16 October, 180 days after the start |
| Days in the bed to the first harvest (card) | 74 |
| First harvest, if planted in this window | 2 July – 16 October |
| Days left for picking | 106 |
| Daylight | 13:51 on 19 April |
| Watering outdoors when fruiting (card) | every 3 days; the driest month, April, has 9 rainy days |
Peas in Grand Forks: care after planting
Planted on 19 April: in the first weeks water every 6 days.
Pests and diseases of peas to watch for:
Weather in Grand Forks during the peas season
About 471 mm of rain falls in the season; April is the driest month (60 mm) and June the wettest (89 mm).
| Month | Day, °C | Night, °C | Rain, mm | Rainy days | Daylight on the 15th |
|---|---|---|---|---|---|
| April | 10.4 | -0.8 | 60 | 9 | 13:37 |
| May | 20.5 | 7.9 | 69 | 10 | 15:09 |
| June | 26.3 | 14.8 | 89 | 10 | 16:00 |
| July | 27.9 | 17.1 | 72 | 8 | 15:40 |
| August | 26.3 | 15.9 | 61 | 9 | 14:20 |
| September | 22.2 | 12.3 | 60 | 8 | 12:38 |
| October | 12.8 | 4.2 | 60 | 8 | 10:55 |
ERA5 2016–2025, Open-Meteo
Peas in nearby cities
Around Grand Forks, Pierre is 14 days earlier and Winnipeg 2 days later.
| City | Distance | Date | Difference |
|---|---|---|---|
| Fargo | 118 km | 9 April – 3 August | 10 days earlier |
| Winnipeg | 220 km | 21 April – 30 July | 2 days later |
| Bismarck | 303 km | 10 April – 2 August | 9 days earlier |
| Duluth | 396 km | 7 April – 15 August | 12 days earlier |
| Minneapolis | 439 km | 7 April – 11 August | 12 days earlier |
| Pierre | 467 km | 5 April – 11 August | 14 days earlier |
Where to buy peas seeds in Grand Forks
Seeds go straight into the bed from 19 April to 3 August; buy them before that. Within 15 km of Grand Forks OpenStreetMap lists 2 markets (collected 29 October 2026).
- Town Square Farmers Market — market
Jun 17–Sept 30 Sat 09:00–13:00 · 5 km · tsfarmersmarket.com - Daryeel Grocerys — market
5 km
Places: © OpenStreetMap contributors, ODbL.
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.
- How to grow peas
- All frost dates and weather of Grand Forks
- Shops and markets: Grand Forks
- Selling a surplus in the United States
- When to plant peas in the United States
- Grand Forks: #738 of 801 by frost-free season
- Moon planting calendar for November 2026
- How we calculate the dates
Questions
When to plant peas in Grand Forks?
In Grand Forks, peas: sow straight into the bed from 19 April to 3 August.
When is the last spring frost in Grand Forks?
Last spring frost around 10 May, first autumn frost around 16 October.
