Part A - EIA 400 kV OHTL Stp - мепсо а.д.

Environmental Impact Assessment Study for 400 kV OHL SS Stip – Macedonian-Serbian BorderClimate Characteristics in Kumanovo ValleyThis area characterizes by higher altitutde than Ovche Pole and it is more open to the north,which enables free flow of air from larger areas which during the winter period case lowertemperatures.According to the data from the meteorological stations of the HydrometeorologyAdministration, the average annual temperature in this area is 11.8 °C. Sometimes it variesbetween 10.8 °C to 13.0 °C. The coldest month is January, with average monthlytemperature of 0.4 °C. The warmest month is July, with average monthly temperature of 22.3°C. The average summer temperature is 22.8 °C. The temperature variation is 21.9 °C, whichproves that annual movement of the air temperature is under the moderate continentalclimate influence.This area characterizes by more annual quantities of falls than Ovche Pole. The averageannual quantity is 549 mm. During the year, the falls are uneven. The maximum is in May,with average monthly quantity of 72.1 mm, and the secondary maximum is in November, with58.8 mm. The main minimum is in August, with average falls of 30.2 mm, and the secondaryminimum is in February, with average quantity of 34.6 mm. The regime of falls is a result ofthe modified climate influence, which is part of the Central European pluviometric regime –rainy springs and quite dry winters. On average, there are 24 with snow falls annualy.The average annual relative humidity is 72% and during the year it gradually falls down fromJanuary unitl August, and then there is a more rapid increase until December. The maximumrelative humidity is noticed in December, with 85% on average, while the minimum is inAugust, with 60% on average.The region also characterizes by winds. The north wind is the most frequent, with averageannual speed of 3.1 m/sec, while its maximum speed is 26.4 m.sec. The north-west wind issecond by frequency in this region, with average annual speed of 1.8 m/ec, and maximumspeed up to 18.9 m/sec.The average annual number of days with ice is 79, i.e. 50 % of the number of days during anaverage icy period.54