List of Purnima (Pournami) Poojas in 2014

Name of Purnima	Date Month	Day
Paush purnima	16 January	Thursday
Magha Purnima	14 February	Friday
Phalguna Purnima	16 March	Sunday
Chaitra Purnima	15 April	Tuesday
Vaishakha Purnima	14 May	Wednesday
Jyaishta Purnima	13 June	Friday
Ashadha Purnima	12 July	Saturday
Shravan Purnima	10 august	Sunday
Bhadrapada Purnima	9 September	Tuesday
Ashwin Purnima/Sharad Purnima	7 October	Tuesday
Kartik Purnima	6 November	Thursday
Margashirsha Purnima	6 December	Saturday

List of Amavasyas Poojas in 2014

Date	Month	Year	Day	Name of Amavasya
1st	January	2014	Wednesday	Paush Amavasya
30th	January	2014	Thursday	Magha Amavasya (Mauni Amavasya)
1st	March	2014	Saturday	Phalguna Amavasya
30th	March	2014	Sunday	Chaitra Amavasya
29th	April	2014	Tuesday	Vaishakaha Amavasya
28th	May	2014	Wednesday	Jyeshtha Amavasya
27th	June	2014	Friday	Aashadha Amavasya (Aati Amavasya)
26th	July	2014	Saturday	Shravana Amavasya (Bheemana Amavasya)
25th	August	2014	Monday	Bhadrapada Amavasya (Somvati Amavasya)
24th	September	2014	Wednesday	Ashwin Amavasya
23th	October	2014	Thursday	Kartik Amavasya
22nd	November	2014	Saturday	Margashirsha Amavasya
22nd	December	2014	Monday	Paush Amavasya (Somvati Amavasya)

Why do people worship 'family Deities' (Kula Deivam)?

Is it our Hindu (Specially South Indian) Tradition that each family have a family deity called KULA DEIVAM. These Kula Deivams are considered as the ANCESTRAL God..meaning our forefathers and relatives have been worshiping that god for ages. It is the unshaken belief of most of the Hindus that these family deities take care of our family and save from all hardships and hindrances. In south u have what is called the "kula deivam' or the ancestral god..meaning our forefathers and relatives have been worshiping that god for ages..Every family has a guardian angel called Kula Deivam (Kulam -- Lineage/Family, Deivam -- God). This in most communities tend to be different from the Hindu Gods that are generally worshiped in a common temple. A temple to a Kula deivam constructed in one's ancestral village/town, will have it as the main deity (Sanctum Sanctorum) while other Gods may also be present in the periphery. The Kula deivam can be formless as well. People who have migrated to other places still visit their ancestral village/town and pay their respects by offerings (animal sacrifices(by some people only) /donations /charity /breaking coconuts) and feasting (called pongal -- which is also the name of Thanksgiving festival and a dish made of rice). Since in most villages, people of the same community tend to be related, everyone will have the same Kula Daivam.People visit the temple of their Kula Deivam every year and make special pujas from their family. Mostly these Kula Deivams would be Marriamman Iyennar type, who are considered the great deities in the villages. - 

Source - https://answers.yahoo.com/question/index?qid=20071229162741AAljYka