why do some months have 31 days

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
why do some months have 31 days	0.88	0.4	7886	37	31
why	1.1	0.9	3932	11	3
do	0.37	0.8	3891	94	2
some	0.49	1	6019	87	4
months	1.06	0.2	6120	70	6
have	0.66	0.6	9225	56	4
31	1.7	1	2741	51	2
days	0.87	0.3	6714	40	4

Keyword	CPC	PCC	Volume	Score
why do some months have 31 days	0.33	0.8	2482	27
why do some months have 31 days and others 30	0.92	0.5	6251	29
why do some months have 31 30 29 or 28 days	0.15	0.8	9858	27
why some months have 30 or 31 days	1.21	0.8	2368	63
why are there 31 days in some months	0.82	0.8	1164	12
why are some months 30 days 31 days 29 days	0.7	0.3	9801	93
why are some months 30 days and others 31	0.34	0.3	9041	44
why some months have 31 days	1.53	0.7	9689	64
why do some months have 30 days	1.82	0.4	2754	99
which months have 30 days and 31	0.91	0.3	8537	79
months with 30 days and 31 days	0.66	0.5	7144	9