Poltava, Poltava, Ukraine

Frost dates for Poltava

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

23 April

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

Median first autumn frost

16 October

The far end of the outdoor season.

Frost-free season

177 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	23 Apr	4 May	24 Mar	11 May
First of autumn	1 Oct	16 Oct	27 Oct	24 Sep	11 Nov
Frost-free days	206	177	150	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	27 Mar	5 Apr	21 Apr	23 Mar	27 Apr
First of autumn	8 Oct	21 Oct	6 Nov	1 Oct	12 Nov
Frost-free days	224	199	170	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	3 Mar	27 Mar	6 Apr	21 Feb	22 Apr
First of autumn	25 Oct	8 Nov	25 Nov	23 Oct	30 Nov
Frost-free days	267	226	202	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

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

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	-9.9°C	-3.1°C	30
February	-8.2°C	-0.7°C	26.7
March	-3.2°C	6°C	24.9
April	3.4°C	14.6°C	6.3
May	9.4°C	21°C	0.3
June	14.3°C	25.8°C	0
July	16.9°C	28.9°C	0
August	16.2°C	29°C	0
September	10.2°C	22.1°C	0.1
October	3.8°C	14.1°C	6.7
November	-1.4°C	5.3°C	18.9
December	-6.5°C	-0.7°C	27.9

Turn these dates into a planting calendar →

Nearby

Compare with places close by

Kremenchuk Zone 5b 102 km Last frost 6 Apr First 22 Oct Kamyanske Zone 6a 119 km Last frost 11 Apr First 17 Oct Kharkiv Zone 5a 130 km Last frost 24 Apr First 14 Oct Dnipro Zone 5b 130 km Last frost 11 Apr First 17 Oct Sumy Zone 5a 149 km Last frost 26 Apr First 11 Oct Cherkasy Zone 5b 181 km Last frost 11 Apr First 20 Oct Belgorod Zone 5a 183 km Last frost 25 Apr First 11 Oct Zaporizhzhya Zone 6a 198 km Last frost 11 Apr First 20 Oct