Kenya: Agrometeorological Bulletin, 29th Dekad 2009


29th Dekad, 11th to 20th October, 2009

Issue No. 29/2009, Season: OND


- During the 29th Dekad i.e. 11th - 20th October, 2009, moderate to heavy rainfall was received over the Western, Eastern, Nyanza, and parts of Central Rift Valley with Kakamega, Kisii, Kisumu, Kericho, Kitale, Eldoret, and Nakuru recording 45.2, 10.8, 12.3,15.8,15.0 ,10.5 and 38.5mm respectively. The Coastal regions experienced heavy rainfall with Voi, Lamu, Mombasa, Mtwapa, msabaha, and Malindi recording Dekadal rainfall totals of 61.1, 169.5, 56.3, 35.5, 93.8 mm and 139.4 mm respectively. Central Province, experienced moderate to heavy rains with Nyahururu, Nyeri and Thika recording Dekadal rainfall totals of 24.2, 83.4 and 112.8 mm respectively. Nairobi area and its environs experienced morderate to heavy rains with Kabete, Dagoretti, Wilson and J.K.I.A recording 77.0, 44.9, 28.9, and 8.6 mm respectively. Eastern region experienced heavy rainfall with Meru , Embu, Marsabit and Machakos recording 234.8, 156.8, 113.7 and 26.4mm respectively. North eastern region experienced heavy rainfall with Mandera , Wajir and Garissa recording 60.8, 33.0, and 94.0 mm respectively. (Fig 1&2.)

- Day time temperatures relatively decreased due to increased cloud cover over Western, Central Rift Valley, Central Province, Nairobi area and its environs and the Coastal region with Kakamega, Kisumu, Nakuru, Eldoret, Mwea, Nyeri, Meru, Embu, Thika, Dagoretti, Moyale, Makindu and Mombasa recording a Dekadal Mean day Maximum of 28.1, 31.0, 26.0, 22.8, 28.5, 23.6, 23.6, 25.7, 25.6, 23.3, 27.0, 28.8 and 29.9 deg. Celsius respectively. (Fig 2&3).

- Night temperatures relatively remained high over Western and Central Rift Valley, Central Highlands, Nairobi area and its environs during the Dekad with Nyahururu, Narok, Eldoret Airport, Nakuru, Nyeri, Embu, Thika, Kabete and Dagoretti recording a Dekadal mean minimum of 8.3, 12.4, 12.1, 13.1, 13.6, 14.9, 14.8, 13.5 and 13.9 deg Celsius respectively. (Figs 1-6).