D2 CLIMATIC Climatic data near the lake, 1961-1971 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann. Mean temp. [deg C]*1 27 26 25 24 22 20 19 21 23 26 27 28 26 Precipitation [mm]*2 320 201 157 46 26 6 1 2 2 13 79 205 1,058 *1 At Khanda (10 km west of the lake). *2 At Mpyupyu Prison Farm (15 km west of the lake). Source:Lancaster, N. (1979) The physical environment of Lake Chilwa. "Lake Chilwa" (ed. Kalk, M., McLachlan, A. J. & Howard-Williams, C.), pp. 17-39. Dr. W. Junk Publishers, The Hague.