oa Botswana Notes & Records - The 1991/92 summer heat-wave in Gaborone

Volume 25, Issue 1
  • ISSN : 0525-5090



January and February 1992 were marked by exceptional heat-waves in Botswana, especially in the southern parts. At the headquarters of the Botswana Meteorological Services in the Village, Gaborone, daily maximum temperatures exceeding 4O�C were recorded on three occasions and only a few short intervals of relatively cooler weather interrupted this apparently perpetual hot spell. Generally conditions of severe heat are assessed using discomfort indices. Although conditions were indeed extreme for Botswana, top of the scale discomfort indices were never attained. In this paper I look at the temperature distribution during the above-mentioned period. A discomfort index is used to illustrate the degree of discomfort as caused by the excessive summer heat. The 1991/92 summer temperatures are then compared to conditions that were obtained during the last three decades.

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