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Frost dates in Kyrgyzstan

2 places in Kyrgyzstan, each with a last and first frost worked out from its own daily temperature record rather than from a regional average. Median dates are listed below; follow a town for the full distribution, the early and late years behind it, and a planting calendar built from them.

Earliest last frost

18 Mar

At Osh, the first place here safe to plant out.

Latest last frost

4 Apr

At Bishkek. Spring arrives 17 days later there than at Osh.

Growing season

207–239 d

Frost-free days: shortest at Bishkek, longest at Osh.

Hardiness zones

7b–8a

USDA-equivalent, from the mean annual coldest night. How these are worked out.

Why frost dates vary across Kyrgyzstan

A national figure would be no use to anyone here. The growing season runs from 207 frost-free days at Bishkek to 239 at Osh — a difference of 32 days, which is the difference between one tomato crop and none. That is why every date on this site is calculated for one place at a time.

How to read the table

Last frost is the median date of the final spring frost: in half of the years on record the last frost fell before it, in half after. First frost is the median date of the first autumn frost, and season is the number of frost-free days between them. All three are measured at the 0 °C air-temperature threshold.

A median is a planning date, not a guarantee. Plant tender crops on it and you accept roughly a one-in-two chance of a later frost in any given year. Each town page shows the cautious date — safe in nine years out of ten — alongside it, together with the earliest and latest frost the record holds. Read how the figures are calculated.

Every place in Kyrgyzstan

Listed by population, because that is how most people find their own town.

Median last and first air frost at 0 °C, with the frost-free season in days and the USDA-equivalent hardiness zone. Places with no reliable frost in the record show “none”.
Place Region Last frost First frost Season Zone
Bishkek Bishkek 4 Apr 27 Oct 207 d 7b
Osh Osh Region 18 Mar 12 Nov 239 d 8a

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