Iğdır, Iğdır, Turkey

Frost dates for Iğdır

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

17 April

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

Median first autumn frost

2 November

The far end of the outdoor season.

Frost-free season

199 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 4 Apr 17 Apr 27 Apr 26 Mar 11 May
First of autumn 23 Oct 2 Nov 11 Nov 9 Oct 22 Nov
Frost-free days 221 199 179 every year on record saw this
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 21 Mar 7 Apr 21 Apr 10 Mar 26 Apr
First of autumn 30 Oct 11 Nov 24 Nov 26 Oct 30 Nov
Frost-free days 248 218 192 every year on record saw this
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 26 Feb 26 Mar 12 Apr 2 Feb 21 Apr
First of autumn 9 Nov 1 Dec 19 Dec 27 Oct 24 Dec
Frost-free days 296 250 211 every year on record saw this

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 -6.6°C 4.3°C 30.7
February -5.1°C 6.8°C 26.9
March -1.2°C 11.8°C 19.5
April 3.5°C 18°C 4.6
May 8.2°C 22.9°C 0.1
June 13°C 28.9°C 0
July 16.5°C 32.5°C 0
August 16.9°C 33.1°C 0
September 12.2°C 27.9°C 0
October 6.4°C 20.4°C 1.2
November 0.1°C 12.6°C 14.2
December -4.3°C 6.7°C 28.5

Turn these dates into a planting calendar →

Seasonal context

Rainfall and the growing season in Iğdır

May has the highest average precipitation (65 mm); February has the lowest (19 mm). Compare this pattern with the planting windows and your water supply.

Jan 24 mm
Feb 19 mm
Mar 31 mm
Apr 53 mm
May 65 mm
Jun 48 mm
Jul 36 mm
Aug 26 mm
Sep 20 mm
Oct 38 mm
Nov 23 mm
Dec 24 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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