Narva, Ida-Virumaa, Estonia

Frost dates for Narva

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

26 April

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

Median first autumn frost

29 October

The far end of the outdoor season.

Frost-free season

186 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 15 Apr 26 Apr 10 May 6 Apr 12 May
First of autumn 18 Oct 29 Oct 11 Nov 14 Oct 22 Nov
Frost-free days 211 186 161 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 30 Mar 10 Apr 21 Apr 23 Mar 27 Apr
First of autumn 24 Oct 11 Nov 27 Nov 19 Oct 3 Dec
Frost-free days 242 216 186 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 19 Mar 1 Apr 13 Apr 1 Mar 27 Apr
First of autumn 8 Nov 21 Nov 9 Dec 24 Oct 29 Dec
Frost-free days 265 235 209 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

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 -7.8°C -4°C 29.1
February -8.5°C -4°C 26.6
March -5°C -0.1°C 27.9
April 0.5°C 6.7°C 12.8
May 6.1°C 13°C 0.8
June 11.7°C 17.9°C 0
July 15°C 20.8°C 0
August 14.2°C 20°C 0
September 10°C 15.1°C 0
October 4.6°C 8.2°C 3.4
November -0.4°C 2.3°C 15
December -5°C -1.7°C 25.5

Turn these dates into a planting calendar →

Nearby

Compare with places close by

Kingisepp Zone 5b 24 km Last frost 7 May First 18 Oct Sosnovyy Bor Zone 6a 77 km Last frost 4 May First 22 Oct Petrodvorets Zone 5b 107 km Last frost 4 May First 18 Oct Peterhof Zone 5b 111 km Last frost 4 May First 18 Oct Gatchina Zone 5a 112 km Last frost 14 May First 10 Oct Pushkin Zone 4b 130 km Last frost 14 May First 8 Oct Saint Petersburg Zone 4b 135 km Last frost 5 May First 15 Oct Tartu Zone 5a 139 km Last frost 27 Apr First 19 Oct

Seasonal context

Rainfall and the growing season in Narva

August has the highest average precipitation (92 mm); March has the lowest (47 mm). Compare this pattern with the planting windows and your water supply.

Jan 59 mm
Feb 50 mm
Mar 47 mm
Apr 48 mm
May 57 mm
Jun 82 mm
Jul 76 mm
Aug 92 mm
Sep 71 mm
Oct 80 mm
Nov 74 mm
Dec 68 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.

Plan your crops in My Garden