Climate Kohlu
The climate of Kohlu, generally located 600-1200 meters above sea level, can be placed in the "arid with warm summer and cool winter" category. The summer is warm with mean temperatures ranging from 21°C to 32
° C. June is the hottest month when the maximum temperature does exceed 32° C and occasionally rises above 38° C. Summer is usually longer than winter and lasts for about 7 months (April-October). In winter the temperature drops below 10°C and in the coolest month (January) the mercury may touch the freezing point. During the cold spells mean temperature may drop below 0° C.In most of the areas of the district total annual precipitation remains below 250 mm. However annual rainfall exceeds this range in the areas surrounding Kohlu town, most of which takes place in summer due to monsoon. Generally the potential evaporation exceeds precipitation by more than two times. Therefore the area is arid. According to the Pakistan Meteorological Department, total annual precipitation in 1995 was 429.7 mm at Barkhan. However, in Kohlu district precipitation level seems lower than that in Barkhan; as evinced by relatively less vegetation in Kohlu.
Annual Mean Rainfall
To date no meteorological station has been established in Kohlu by the Pakistan Meteorological Department (PMD). Barkhan is a neighbour district of Kohlu where meteorological data is recorded at a PMD station. Although geographical features of Kohlu district are different from those of Barkhan, these data still can give an idea about Kohlu. In 1993 the total annual rainfall in Barkhan district was 512.5 mm which increased to 601.6 mm in 1994 and again decreased to 429.7 mm in 1995. Annual rainfall level is relatively less in the district. Kohlu town receives more precipitation than other areas of the district. Summer rainfall provides water for kharif crops, i.e. jowar, maize, moong, mash and fodder.
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Source: |
Pakistan Meteorological Department, Karachi |
Annual Mean Temperature
At Barkhan station of the Pakistan Meteorological Department, mid summer mean maximum temperature (in June) varied slightly in the years 1993-1995 (from 37.1
° C to 38.8° C) while mid summer mean minimum temperature ranged from 23.8° C to 25.1° C. The mid winter mean maximum temperature (in January) in these three years was between 14.9° C and 16.0° C and mean minimum temperature in mid winter remained between 3.8° C and 5.0° C (see Annex 3 for details). Although these data can hardly give an accurate account of temperatures in Kohlu district, these are the only sttistics available to have an idea of the situation.
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Source: |
Pakistan Meteorological Department, Karachi |
The data on temperature in Barkhan seem consistent through the years as the annual mean maximum temperature for the years 1993-95 ranged from 27.6
° C to 28.3° C. Similarly annual mean minimum temperature for these three years varied slightly, from 15.3° C to 15.9° C.Back to Kohlu