Kirov, Kirov Oblast, Russia

Frost dates for Kirov

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

18 May

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

Median first autumn frost

30 September

The far end of the outdoor season.

Frost-free season

135 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	2 May	18 May	26 May	29 Apr	31 May
First of autumn	19 Sep	30 Sep	12 Oct	12 Sep	20 Oct
Frost-free days	164	135	116	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	24 Apr	8 May	22 May	19 Apr	30 May
First of autumn	27 Sep	9 Oct	21 Oct	22 Sep	25 Oct
Frost-free days	180	154	127	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	5 Apr	23 Apr	5 May	2 Apr	17 May
First of autumn	8 Oct	22 Oct	31 Oct	23 Sep	9 Nov
Frost-free days	209	182	155	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	-18.2°C	-11.8°C	31
February	-16.8°C	-9.6°C	28.3
March	-10.3°C	-3.1°C	30.9
April	-2.6°C	4.8°C	22.8
May	4.6°C	15.2°C	5.7
June	10.3°C	19.9°C	0
July	13.1°C	22.7°C	0
August	11.1°C	20.1°C	0
September	6°C	13.7°C	1.6
October	-0.2°C	5°C	16.6
November	-8.4°C	-3.8°C	28.2
December	-16.1°C	-10°C	30.9

Turn these dates into a planting calendar →

Nearby

Compare with places close by

Yoshkar-Ola Zone 3b 242 km Last frost 8 May First 3 Oct