Zone

Altitude from sea level (m)

Actual temperature total (more than 10%)

Average of absolute and minimal temperature (˚C)

Nonfreezing days

I

0 - 350

4000 - 4500

−3

280 - 310

II

351 - 560

3500 - 4000

−14 - 16

190 - 275

III

561 - 780

3000 - 3500

−18 - 8

186 - 267

IV

781 - 990

2500 - 3000

−12 - 22

175 - 216

V

991 - 1250

2000 - 2500

−14 - 23

140 - 205

VI

1251 - 1750

1500 - 2000

−15 - 28

120 - 180

VII

1751 - 2100

1000 - 1500

−19 - 29

100 - 150