Safe to Plant

Maringá, Paraná, Brazil

Planting calendar for Maringá

Worked out from 29 years of daily minimum temperatures for this location — not from a zone map, and not from the nearest big city. Move the dial to change how much frost risk you are willing to carry, and every date on the page re-times itself.

Last spring frost

22 July

Frost has finished by this date in 1 year in 2.

First autumn frost

22 June

Bring tender crops in before this date.

Frost-free season

335 days

Very long season

The average last frost. Half of all years are later than this.

Sow this week in Maringá

Windows that are open today, 6 August. The ones marked in amber are closing within a fortnight.

Opening soon

The growing year in Maringá

307 crops, timed to the dates above

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Bay
Rye
Oca

Frost risk Start indoors Autumn sowing Sow direct Plant out Plant Harvest Today

Each bar is a window, not a deadline. Tap or hover a bar for its dates, or follow a crop name for the full timing and a harvest estimate. The blue wash is the measured weekly chance of frost across the whole record. There is also a printable one-page version of this calendar for the shed wall.

The climate behind these dates

Jul Sep Oct Dec Mar Apr Jun
Chance of at least one air frost during each week of the year, measured across the full record. The flat stretch in the middle is your frost-free season.
J
F
M
A
M
J
J
A
S
O
N
D

Mean monthly temperature across the record. Months shown in blue average at least one air frost.

Hardiness zone
10b
Typical winter low
2.1°C (35.9°F)
Growing degree days
4,224 base 10°C
Soil workable from
8 Jul
Soil warm from
8 Jul

Full frost table for Maringá →

Printable one-page calendar →

Questions about frost in Maringá

When is the last frost in Maringá?

The median last spring frost in Maringá falls on 22 July. In one year in ten frost continues as late as 24 July, so if you cannot protect tender plants, 24 July is the safer date to work to.

When is the first frost in Maringá?

The median first autumn frost in Maringá falls on 22 June, though in one year in ten it arrives by 15 June. Tender crops should be harvested before that earlier date.

How long is the growing season in Maringá?

About 335 frost-free days on a median year - very long by world standards. Taking the cautious view at both ends, plan for roughly 326 dependable days.

What hardiness zone is Maringá in?

Maringá sits in USDA-equivalent zone 10b, based on a mean annual extreme minimum of 2.1°C (35.9°F). Perennials rated to this zone or lower should survive an average winter here.

Can I trust these dates exactly?

They are statistics, not forecasts. They describe what happened across 29 years of records at this location and say nothing about this particular spring. Frost is also intensely local: a low-lying or exposed garden can run a week behind the figures on this page.