highest batting average in a month minimum 30 games played

Ty Cobb has the best batting average with 30+ games played in a month, with an average of .528 in July 1912.

Interpreted as:

highest batting average by a player in a month minimum 30 games played

	NAME	AVG	G	MONTH	AB	R	H	2B	3B	HR	RBI	BB	HBP	SO	SB	CS	PA	TB	XBH	SH	SF	IBB	GIDP	OBP	SLG	OPS
1	Ty Cobb T. Cobb	.528	30	July 1912	127	33	67	11	8	3	21	9	1		15		137	103	22	0				.562	.811	1.373
2	Tristram Speaker T. Speaker	.489	33	July 1923	137	35	67	18	4	4	37	14	0	0	1		155	105	26	4				.536	.766	1.303
3	Ty Cobb T. Cobb	.489	32	July 1922	137	26	67	18	1	2	25	12	2	5	5		154	93	21	3				.536	.679	1.215
4	Rogers Hornsby R. Hornsby	.488	31	July 1923	125	31	61	13	4	7	39	14	0	12	0		142	103	24	3				.540	.824	1.364
5	Charlie Gehringer C. Gehringer	.484	32	August 1937	122	38	59	11	0	7	38	30	0	2	6		152	91	18	0				.586	.746	1.331
6	Tristram Speaker T. Speaker	.469	31	July 1925	128	31	60	12	3	3	26	17	0	4	2		151	87	18	6				.531	.680	1.211
7	Rogers Hornsby R. Hornsby	.464	31	July 1924	112	34	52	8	3	7	27	23	0	6	1		139	87	18	4				.556	.777	1.332
8	Pat Tabler P. Tabler	.463	31	August 1986	108	12	50	6	0	1	12	11	0	15	0	1	119	59	7	0	0	1	0	.513	.546	1.059
9	Pie Traynor P. Traynor	.460	32	August 1928	139	34	64	11	5	1	49	4	1	1	4		150	88	17	6				.479	.633	1.112
10	Babe Ruth B. Ruth	.459	31	July 1923	111	36	51	9	3	10	27	29	0	18	1		140	96	22	0				.571	.865	1.436
11	Billy Williams B. Williams	.455	30	May 1964	112	22	51	9	0	8	22	18	0	14	5	3	130	84	17	0	0	1	1	.531	.750	1.281
12	Tristram Speaker T. Speaker	.455	32	July 1920	121	28	55	12	2	2	23	18	2	1	1		147	77	16	6				.532	.636	1.168
13	Harry Heilmann H. Heilmann	.454	30	July 1921	119	22	54	12	2	6	27	13	0	12	0		133	88	20	1				.508	.739	1.247
14	Les Bell L. Bell	.454	30	July 1926	108	23	49	10	1	4	27	15	0	9	5		131	73	15	8				.520	.676	1.196
15	Earl Averill E. Averill	.451	32	July 1936	133	40	60	9	4	8	38	9	0	5	0		142	101	21	0				.486	.759	1.245
16	Babe Ruth B. Ruth	.450	37	July 1924	131	43	59	9	3	14	40	31	0	16	2		164	116	26	2				.556	.885	1.441
17	Jack Tobin J. Tobin	.450	30	September 1920	109	18	49	6	1	0	11	13	2	3	7		126	57	7	2				.516	.523	1.039
18	Babe Herman B. Herman	.449	30	July 1929	118	27	53	7	7	6	24	13	0	6	2		134	92	20	3				.504	.780	1.283
19	Lou Boudreau L. Boudreau	.449	30	August 1948	107	28	48	6	3	3	27	15	0	0	2		126	69	12	4			1	.516	.645	1.161
20	Pie Traynor P. Traynor	.443	32	August 1930	122	22	54	3	2	1	32	11	0	4	4		140	64	6	7				.489	.525	1.013
21	George Sisler G. Sisler	.442	30	September 1920	129	28	57	11	9	2	26	13	0	4	11		146	92	22	4				.493	.713	1.206
22	Babe Ruth B. Ruth	.440	34	July 1920	100	45	44	10	2	13	33	43	1	19	5		147	97	25	3				.611	.970	1.581
23	Al Simmons A. Simmons	.439	33	July 1928	132	27	58	12	1	8	41	10	2	6	1		146	96	21	2				.486	.727	1.213
24	Rogers Hornsby R. Hornsby	.438	30	September 1922	130	37	57	8	4	10	29	6	0	7	0		140	103	22	4				.463	.792	1.256
25	Mickey Mantle M. Mantle	.438	30	August 1957	105	21	46	10	0	6	17	23	0	17	4	1	128	74	16	0	0	3	1	.539	.705	1.244