The Kenya Red Cross Society (KRCS) spokesperson, Nelly Muluka, said the floods have also resulted in widespread destruction of property and infrastructure and disruption of key activities such as farming and education.
"More than 100,000 people have been displaced and many more affected by floods, while at least 68 people have lost their lives since March," Muluka said.
"This year has also recorded the highest number of fatalities from floods in the past five years with at least 65 confirmed dead. In comparison a total of 55 deaths were recorded for all of 2008," Muluka said.
"The worst affected areas of the country are Nyanza province, parts of Rift Valley provinces, parts of the greater Nairobi metropolitan area and parts of Coast province," Muluka said.
Relief agencies and Kenyan officials say the number of casualties may rise as the rains are expected to continue for days or weeks to come.
The Red Cross said the displaced and those affected by the floods urgently require relief aid such as food, mosquito nets, tents, blankets, cooking utensils and medicine.
"This year has recorded the highest flood-affected population in the past five-years. In comparison, a total of 92,000 people were affected by floods during the entirety of 2011," Muluka said.
Malindi residents have attributed the flooding to the poor drainage system while accusing the Municipal Council of inaction.
Odinga told parliament late Wednesday of the steps to mitigate disaster risks and emergencies, which have grown in frequency and scale as a result of climate change since 2008.
"The government is currently undertaking disaster risk and vulnerability assessment countrywide," he said, citing a study carried out by the European Union and the World Bank to quantify drought effects and to advise the government on strategies to deal with them.
"Our country has been experiencing droughts and floods in the same way we experience the sun and moon: One follows the other.
"As part of our nation’s efforts at adaptability to climate change, I call upon all Kenyans to mind their carbon footprint," he said.