Another possibility 'Nitapanda mlima Kilimanjaro mwezi wa kumi na mbili'
The name Kilima Njaro = kilimanjaro. The word "mlima" is already in it. I have had Tanzanians tell me I should not call it mlima kilimanjaro for this reason. It should be allowed to say mwezi wa kumi na mbili nitapanda Kilimanjaro
Could we use Katika to say in december? could another possible answer be "Katika Mwezi wa kumi na mbili......"