Resources · Climate

Acreage guides for towns in this county: St. Paul

Hardiness Zone in County of St. Paul

County of St. Paul is generally treated as Canadian plant hardiness zone 2b, with a frost-free window on the order of 105 days. The zone is read from the Natural Resources Canada plant hardiness map (4th edition, 1991–2020 normals) at a representative quarter; frost dates are a regional table keyed by zone, not a logger on your fence. Those two numbers decide more tree deaths than soil tests do.

Zone 3a with about 105 frost-free days. The many lakes buffer frost slightly on their shores while hollows between them frost early.

What the zone is — and is not

Agriculture and Agri-Food Canada’s plant hardiness maps combine several climate variables, not just one winter low. A zone 2b label means a typical winter in this belt, not the worst winter of the decade, and not the frost pocket at the bottom of your driveway.

Use it to:

• Filter nursery stock (do not buy zone 5 peaches for a County of St. Paul field)
• Plan shelterbelts that will still be standing in twenty years
• Time cover crops against a 105-day window

Do not use it to:

• Ignore a north-facing draw
• Skip a thermometer logger for one season
• Assume the town of St. Paul and a rural quarter share the same last frost

Frost-free days in practice

105 days is a regional sketch. Last spring frost and first fall frost move with elevation, wet ground, and cold-air drainage. In County of St. Paul, watch:

• River and lake edges that radiate heat at night — or collect cold
• Open peat or muskeg that frosts early
• South walls and gravel pads that buy you a week

A food forest that needs 130 days will fight this county most years. A shelterbelt of zone 2b natives will not.

Pair climate with water and sun

Zone is only one pillar. A 2b site with a 86 m well and 0.8 kWh/m²/day in winter is a different homestead than the same zone on a municipal line. Plan trees, wells, and panels on the same map.

Flood or wet ground near North Saskatchewan River valley, Upper and Lower Therien lakes, Frog Lake lowlands can also shorten the effective season by keeping soils cold in May.

See this for your specific parcel

Generate a free land report for a property in County of St. Paul →

Sampled data for County of St. Paul

From a Land Intelligence report run on a representative quarter in Township 57, Range 9, W4. These are measured or record-based values for that location, shown to put the county figures above in context. They are not your parcel.

Growing zones near County of St. Paul: St. Paul (zone 2b) · Bonnyville (zone 2b) · Vegreville (zone 3a) · Alberta growing zones map

Neighbouring counties: County of Two Hills (41 km) · MD of Bonnyville (51 km) · County of Minburn (64 km) · Smoky Lake County (80 km) · Compare County of St. Paul with another county

Sampled from the live report pipeline at a representative quarter in Township 57, Range 9, W4 on 2026-10-08: well depth, hardiness zone, solar irradiance (115 well records within 5 km). Text reviewed 2026-10-08. Methodology.

Common questions

What should I plant in County of St. Paul?

Start with zone 2b stock and a 105-day season. Then walk frost pockets.

Is the town of St. Paul the same zone?

Often close, not identical. Elevation and cold-air drainage on a rural lot can run colder than town.