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When to plant peas in Billings: 4 April – 1 August

In Billings, peas: sow straight into the bed from 4 April to 1 August.

Peas in Billings: soil, season and weather

Peas tolerates light frost, so it goes in three weeks before the last frost (25 April); the top 7 cm of soil has reached its minimum of 4 °C by then (around 19 March).

Last spring frost25 April
Top 7 cm of soil at 4 °C19 March, 37 days before the last frost
First autumn frost14 October, 193 days after the start
Days in the bed to the first harvest (card)74
First harvest, if planted in this window17 June – 14 October
Days left for picking119
Daylight12:56 on 4 April
Watering outdoors when fruiting (card)every 3 days; the driest month, July, has 3 rainy days

Peas in Billings: care after planting

Planted on 4 April: in the first weeks water every 6 days.

Pests and diseases of peas to watch for:

Weather in Billings during the peas season

About 323 mm of rain falls in the season; July is the driest month (18 mm) and May the wettest (76 mm).

MonthDay, °CNight, °CRain, mmRainy daysDaylight on the 15th
April14.60.9661013:30
May20.36.9761214:55
June26.712.557815:42
July31.916.618315:23
August3115.820314:10
September25.911.239512:36
October163.747711:00

ERA5 2016–2025, Open-Meteo

Peas in nearby cities

All the nearest cities on our list plant peas later than Billings; the closest date is in Rapid City, 12 days later.

CityDistanceDateDifference
Helena287 km28 April – 21 July24 days later
Idaho Falls377 km20 April – 1 August16 days later
Missoula441 km27 April – 24 July23 days later
Rapid City457 km16 April – 30 July12 days later
Regina594 km23 April – 24 July19 days later
Cheyenne595 km21 April – 31 July17 days later

Where to buy peas seeds in Billings

Seeds go straight into the bed from 4 April to 1 August; buy them before that. Within 15 km of Billings OpenStreetMap lists 7 garden centres, 11 farm-supply shops, 3 plant nurseries and 4 markets (collected 20 October 2026).

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.

Questions

When to plant peas in Billings?

In Billings, peas: sow straight into the bed from 4 April to 1 August.

When is the last spring frost in Billings?

Last spring frost around 25 April, first autumn frost around 14 October.

Other crops in Billings, with their dates