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When to plant peas in Missoula: 27 April – 24 July

In Missoula, peas: sow straight into the bed from 27 April to 24 July.

Peas in Missoula: soil, season and weather

Peas tolerates light frost, so it goes in three weeks before the last frost (18 May); the top 7 cm of soil has reached its minimum of 4 °C by then (around 9 April).

Last spring frost18 May
Top 7 cm of soil at 4 °C9 April, 39 days before the last frost
First autumn frost6 October, 162 days after the start
Days in the bed to the first harvest (card)74
First harvest, if planted in this window10 July – 6 October
Days left for picking88
Daylight14:11 on 27 April
Watering outdoors when fruiting (card)every 3 days; the driest month, July, has 4 rainy days

Peas in Missoula: care after planting

Planted on 27 April: in the first weeks water every 6 days.

Pests and diseases of peas to watch for:

Weather in Missoula during the peas season

About 315 mm of rain falls in the season; July is the driest month (11 mm) and May the wettest (66 mm).

MonthDay, °CNight, °CRain, mmRainy daysDaylight on the 15th
April11.5-0.9541113:34
May17.44.1661115:02
June22.18.4631015:51
July28.312.911415:32
August27.312.121414:15
September21.67.742612:37
October12.61.5581110:57

ERA5 2016–2025, Open-Meteo

Peas in nearby cities

Around Missoula, Boise is 33 days earlier and Helena 1 day later.

CityDistanceDateDifference
Helena155 km28 April – 21 July1 day later
Spokane271 km31 March – 2 August27 days earlier
Boise400 km25 March – 14 August33 days earlier
Idaho Falls406 km20 April – 1 August7 days earlier
Billings441 km4 April – 1 August23 days earlier
Calgary465 km22 April – 19 July5 days earlier

Where to buy peas seeds in Missoula

Seeds go straight into the bed from 27 April to 24 July; buy them before that. Within 15 km of Missoula OpenStreetMap lists 3 garden centres, 1 farm-supply shop, 2 plant nurseries, 2 markets and 6 farm shops (collected 28 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 Missoula?

In Missoula, peas: sow straight into the bed from 27 April to 24 July.

When is the last spring frost in Missoula?

Last spring frost around 18 May, first autumn frost around 6 October.

Other crops in Missoula, with their dates