Ordu, Ordu, Turkey

Frost dates for Ordu

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

20 February

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

Median first autumn frost

18 December

The far end of the outdoor season.

Frost-free season

301 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 20 Jan 20 Feb 26 Mar 10 Jan 6 Apr
First of autumn 17 Dec 18 Dec 28 Dec 16 Dec 1 Jan
Frost-free days 343 301 266 4 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 10 Jan 11 Feb 3 Mar 3 Jan 19 Mar
First of autumn 26 Dec 26 Dec 26 Dec 26 Dec 26 Dec
Frost-free days 350 318 298 11 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 29 Jan 4 Feb 10 Feb 27 Jan 11 Feb
First of autumn — — — — —
Frost-free days — — — 28 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

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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 4.3°C 8.6°C 2.8
February 4.1°C 9.1°C 3.3
March 5.3°C 10.7°C 1.2
April 8.7°C 14.3°C 0.1
May 13.2°C 18.1°C 0
June 17.7°C 22.3°C 0
July 20.5°C 25°C 0
August 21.3°C 25.8°C 0
September 18.5°C 23°C 0
October 14.6°C 19.2°C 0
November 10.5°C 15.1°C 0
December 6.8°C 11.1°C 0.6

Turn these dates into a planting calendar →

Nearby

Compare with places close by

Fatsa Zone 9a 33 km Last frost 25 Mar First 9 Dec Giresun Zone 9b 42 km Last frost 20 Feb First 18 Dec Ünye Zone 9a 54 km Last frost 25 Mar First 9 Dec Çarşamba Zone 8b 101 km Last frost 5 Apr First 27 Nov Erbaa Zone 7a 116 km Last frost 23 Apr First 1 Nov Samsun Zone 9b 134 km Last frost 8 Feb First 20 Dec Tokat Zone 7b 135 km Last frost 16 Apr First 7 Nov Trabzon Zone 10a 154 km Last frost 19 Feb First 19 Dec

Seasonal context

Rainfall and the growing season in Ordu

October has the highest average precipitation (137 mm); August has the lowest (49 mm). Compare this pattern with the planting windows and your water supply.

Jan 124 mm
Feb 77 mm
Mar 92 mm
Apr 63 mm
May 73 mm
Jun 64 mm
Jul 55 mm
Aug 49 mm
Sep 100 mm
Oct 137 mm
Nov 133 mm
Dec 116 mm

During wetter months, check that beds and containers drain after heavy rain. During drier months, plan how you will keep seeds and new transplants watered. Monthly averages can hide long dry spells and intense storms; they do not show soil moisture, humidity or this week's weather.

Source: NASA POWER, corrected MERRA-2 precipitation, 2001–2020. Values are approximate monthly totals, including the water equivalent of snow, from the nearest 0.5° × 0.625° grid cell. This reference period differs from the temperature record. Rainfall provides context and does not change the calculated planting dates. Method and limitations.

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