Safe to Plant

Tarsus, Mersin, Turkey

Frost dates for Tarsus

The full distribution rather than a single date. Every figure below is a percentile of 30 years of daily minimum temperatures at this location, expressed as the date it fell on.

Median last spring frost

15 February

Half of years are later than this. Not a planting date.

Median first autumn frost

20 December

The far end of the outdoor season.

Frost-free season

309 days

Between those two dates in a median year.

Last and first frost by severity

Read a row as: in this fraction of years, the last frost of spring had already happened by this date. The 90% column is the cautious planting date; the 10% column is the gamble.

Light frost — nights at or below 0°C (32°F). Air temperature reaches freezing. Kills basil, beans and unhardened tomatoes; hardy crops shrug it off.
Frost 1 year in 10 Median 9 years in 10 Earliest Latest
Last of spring 12 Jan 15 Feb 12 Mar 11 Jan 11 Apr
First of autumn 11 Dec 20 Dec 28 Dec 9 Dec 1 Jan
Frost-free days 350 309 275 2 of 30 years saw none at all
Moderate frost — nights at or below -2.2°C (28°F). Damages half-hardy plants and most blossom. This is the threshold that decides a fruit crop.
Frost 1 year in 10 Median 9 years in 10 Earliest Latest
Last of spring 13 Jan 2 Feb 16 Feb 2 Jan 22 Feb
First of autumn 21 Dec 21 Dec 21 Dec 21 Dec 21 Dec
Frost-free days 342 322 308 16 of 30 years saw none at all
Hard frost — nights at or below -4.4°C (24.1°F). Ground freezes and even hardy crops check their growth. Effectively the end of the outdoor year.
Frost 1 year in 10 Median 9 years in 10 Earliest Latest
Last of spring 20 Jan 20 Jan 20 Jan 20 Jan 20 Jan
First of autumn
Frost-free days 29 of 30 years saw none at all

Dates in the southern hemisphere are computed on a growing year that starts in July, which is why "last of spring" falls where it should rather than in the middle of the calendar.

Chance of frost, week by week

Jan Mar Apr Jul Sep Oct Dec
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.

Temperature through the year

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.

Monthly means and average number of frost nights.
Month Mean low Mean high Frost nights
January 4.1°C 12.6°C 3.1
February 5°C 14.4°C 2.3
March 7.4°C 17.9°C 0.5
April 11.4°C 22.8°C 0.1
May 16.2°C 28.5°C 0
June 21°C 34.2°C 0
July 24.6°C 38.5°C 0
August 25.1°C 38°C 0
September 21.7°C 33.9°C 0
October 17.1°C 28.1°C 0
November 11.1°C 21°C 0
December 6.5°C 15°C 1

Turn these dates into a planting calendar →