GreenlyWhen to plant peas in Rapid City: 16 April – 30 July
In Rapid City, peas: sow straight into the bed from 16 April to 30 July.
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Peas in Rapid City: soil, season and weather
Peas tolerates light frost, so it goes in three weeks before the last frost (7 May); the top 7 cm of soil has reached its minimum of 4 °C by then (around 15 March).
| Last spring frost | 7 May |
|---|---|
| Top 7 cm of soil at 4 °C | 15 March, 53 days before the last frost |
| First autumn frost | 12 October, 179 days after the start |
| Days in the bed to the first harvest (card) | 74 |
| First harvest, if planted in this window | 29 June – 12 October |
| Days left for picking | 105 |
| Daylight | 13:28 on 16 April |
| Watering outdoors when fruiting (card) | every 3 days; the driest month, September, has 5 rainy days |
Peas in Rapid City: care after planting
Planted on 16 April: in the first weeks water every 6 days.
Pests and diseases of peas to watch for:
Weather in Rapid City during the peas season
About 377 mm of rain falls in the season; September is the driest month (31 mm) and May the wettest (86 mm).
| Month | Day, °C | Night, °C | Rain, mm | Rainy days | Daylight on the 15th |
|---|---|---|---|---|---|
| April | 13.5 | 0.7 | 64 | 9 | 13:25 |
| May | 19 | 7.3 | 86 | 14 | 14:44 |
| June | 26.5 | 13.8 | 69 | 10 | 15:28 |
| July | 29.7 | 16.8 | 49 | 9 | 15:11 |
| August | 28.5 | 15.9 | 39 | 7 | 14:03 |
| September | 24.9 | 12.3 | 31 | 5 | 12:34 |
| October | 15.9 | 4.5 | 39 | 6 | 11:04 |
ERA5 2016–2025, Open-Meteo
Peas in nearby cities
Around Rapid City, Fort Collins is 12 days earlier and Cheyenne 5 days later.
| City | Distance | Date | Difference |
|---|---|---|---|
| Pierre | 233 km | 5 April – 11 August | 11 days earlier |
| Cheyenne | 351 km | 21 April – 31 July | 5 days later |
| Bismarck | 360 km | 10 April – 2 August | 6 days earlier |
| Fort Collins | 420 km | 4 April – 8 August | 12 days earlier |
| Billings | 457 km | 4 April – 1 August | 12 days earlier |
| Denver | 503 km | 10 April – 2 August | 6 days earlier |
Where to buy peas seeds in Rapid City
Seeds go straight into the bed from 16 April to 30 July; buy them before that. Within 15 km of Rapid City OpenStreetMap lists 1 market (collected 29 October 2026).
- Blackhills Farmers Market — market
East Omaha Street 245, 57701 Rapid City · Nov–Apr Sat 09:00–12:00; May–Oct Sat 08:00–13:00; Jul–Oct Wed 08:00–13:00 · 2 km · blackhillsfarmersmarket.org
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 Rapid City
- Shops and markets: Rapid City
- Selling a surplus in the United States
- When to plant peas in the United States
- Rapid City: #742 of 801 by frost-free season
- Moon planting calendar for November 2026
- How we calculate the dates
Questions
When to plant peas in Rapid City?
In Rapid City, peas: sow straight into the bed from 16 April to 30 July.
When is the last spring frost in Rapid City?
Last spring frost around 7 May, first autumn frost around 12 October.
Other crops in Rapid City, with their dates
- Tomato · 20 May – 22 June
- Cucumber · 6 June – 28 July
- Bell Pepper · 6 June – 22 June
- Eggplant · 6 June – 22 June
- Zucchini · 6 June – 26 July
- Pumpkin · 6 June – 17 June
- Watermelon · 6 June – 3 July
- Garlic · 12 September – 28 November
- Tulip · 12 September – 28 November
- Daffodil · 12 September – 28 November
- Crocus · 12 September – 28 November
- Hyacinth · 12 September – 28 November
