Greenly

Yerevan: frost dates

Armenia

In Yerevan the last spring frost usually comes around 7 April and the first autumn frost around 2 November, which leaves about 209 frost-free days (median of 2016–2025). Tomato seedlings can go into open ground around 11 May.

Last spring frostaround 7 April
First autumn frostaround 2 November
Frost-free days209 days

Median of 2016–2025 for the 25 km grid cell of the city: the last day at or below 0 °C in spring and the first in autumn (ERA5 reanalysis via Open-Meteo). In a cold year a frost can come a week or two later — Greenly warns 48 hours ahead.

When to sow and plant

CropSow for seedlingsPlant out in a greenhouseOpen ground
Bell Pepper23 February8 May29 May
Chili Pepper28 February13 May3 June
Corn—2 Aprilsow 23 April
Cucumber27 March8 May29 May
Eggplant27 February8 May29 May
Green Beans24 February2 April23 April
Melon17 March8 May29 May
Peas—24 Februarysow 17 March
Physalis6 March20 April11 May
Pumpkin14 March20 April11 May
Sweet Corn—2 Aprilsow 23 April
Tomato22 February20 April11 May
Watermelon6 April8 May29 May
Zucchini19 March20 April11 May

Planting out: a week after the last frost once the soil is warm enough for the crop; frost-hardy crops three weeks before it; an unheated greenhouse three weeks earlier. Seedlings are sown so they are ready on that day.

Weather in Yerevan by month

Average weather in Yerevan over 2016–2025: the warmest month is August, the wettest May.

MonthDay, °CNight, °CRain, mmRainy days
January2.2-6.6276
February4.8-4.9316
March10.6-0.47812
April16.54.47112
May20.99.19913
June27.714.8246
July31.518.4164
August32.218.882
September26.513.8184
October18.26.5426
November10.30.1345
December4.4-4428

Average of the daily highs and lows, rain per month and days with at least 1 mm (ERA5 via Open-Meteo, the same grid cell as the frost dates).

Planted in autumn

CropPlant around
Crocus3 October
Daffodil3 October
Garlic3 October
Hyacinth3 October
Lily3 October
Tulip3 October

A month before the first autumn frost, so the roots grow before winter.