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Resources · Climate

Acreage guides for towns in this county: Wainwright

Location of MD of Wainwright in Alberta
MD of Wainwright within Alberta

Hardiness Zone in MD of Wainwright

MD of Wainwright is generally treated as Canadian plant hardiness zone 3a, with a frost-free window on the order of 115 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 110 frost-free days and low rainfall. Drought and sandy soils limit crops more than frost does.

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 3a 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:

Do not use it to:

Frost-free days in practice

115 days is a regional sketch. Last spring frost and first fall frost move with elevation, wet ground, and cold-air drainage. In MD of Wainwright, watch:

A food forest that needs 130 days will fight this county most years. A shelterbelt of zone 3a natives will not.

Pair climate with water and sun

Zone is only one pillar. A 3a site with a 81 m well and 0.9 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 Battle River valley, Ribstone Creek, Wainwright area sand dunes can also shorten the effective season by keeping soils cold in May.

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Sampled data for MD of Wainwright

From a Land Intelligence report run on a representative quarter in Township 44, Range 7, 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.

Annual mean3.7 °Clow -30.9 °C · high 34.5 °C in the sampled year
Days with frost188in the sampled year
Frost windowMay 20 – Sep 15regional table for zone 3a
Growing degree days1750base 5 °C
Monthly average high and low temperature, MD of Wainwright-20300 °CJanFebMarAprMayJunJulAugSepOctNovDecJan: average high -6.4 °C, average low -15 °CJan: average high -6.4 °C, average low -15 °CFeb: average high -1.9 °C, average low -11 °CFeb: average high -1.9 °C, average low -11 °CMar: average high -0.9 °C, average low -10.6 °CMar: average high -0.9 °C, average low -10.6 °CApr: average high 6.8 °C, average low -3.6 °CApr: average high 6.8 °C, average low -3.6 °CMay: average high 19.4 °C, average low 6.9 °CMay: average high 19.4 °C, average low 6.9 °CJun: average high 19.1 °C, average low 10 °CJun: average high 19.1 °C, average low 10 °CJul: average high 25.6 °C, average low 13.5 °CJul: average high 25.6 °C, average low 13.5 °CAug: average high 23.8 °C, average low 11.9 °CAug: average high 23.8 °C, average low 11.9 °CSep: average high 19.2 °C, average low 8.1 °CSep: average high 19.2 °C, average low 8.1 °COct: average high 11.8 °C, average low 0.9 °COct: average high 11.8 °C, average low 0.9 °CNov: average high 0.9 °C, average low -6.9 °CNov: average high 0.9 °C, average low -6.9 °CDec: average high -10.3 °C, average low -20 °CDec: average high -10.3 °C, average low -20 °C25.6 °C-20 °CAverage daily highAverage daily low
Open-Meteo daily archive (ERA5 reanalysis), 2025-10-09 to 2026-10-09: one recent year at the sample point, not a 30-year normal. Use it for the shape of the year, not for a design value.

Growing zones near MD of Wainwright: Wainwright (zone 3a) · Lloydminster (zone 3a) · Alberta growing zones map

Neighbouring counties: Flagstaff County (55 km) · County of Vermilion River (59 km) · MD of Provost (65 km) · County of Paintearth (82 km) · Compare MD of Wainwright with another county

Sampled from the live report pipeline at a representative quarter in Township 44, Range 7, W4 on 2026-10-08: well depth, hardiness zone, solar irradiance (155 well records within 5 km). Text reviewed 2026-10-08. Methodology.

Common questions

What should I plant in MD of Wainwright?

Start with zone 3a stock and a 115-day season. Then walk frost pockets.

Is the town of Wainwright the same zone?

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

Also for this county