highest batting average for a single month with at least 40 at bats all-time

Bob Fothergill has the best batting average when hitting >0 singles with 40+ at-bats in a month, with an average of .542 in April 1927.

Interpreted as:

highest batting average for a single by a player month with at least 40 at bats all-time

	NAME	AVG	1B	AB	MONTH	G	R	H	2B	3B	HR	RBI	BB	HBP	SO	SB	CS	PA	TB	XBH	SH	SF	IBB	GIDP	OBP	SLG	OPS
1	Bob Fothergill B. Fothergill	.542	19	48	April 1927	12	10	26	6	0	1	12	5	0	2	4		54	35	7	1				.585	.729	1.314
2	Charlie Berry C. Berry	.535	16	43	September 1932	16	13	23	5	1	1	10	2	0	1	1		47	33	7	2				.556	.767	1.323
3	Harry Heilmann H. Heilmann	.531	18	49	April 1923	13	11	26	6	1	1	12	6	0	5	2		57	37	8	2				.582	.755	1.337
4	Johnny Mize J. Mize	.529	16	51	July 1936	18	15	27	6	0	5	11	5	1	2	0		57	48	11	0				.579	.941	1.520
5	Joe Jackson J. Jackson	.529	29	102	June 1912	29	28	54	16	8	1		7	2		4		113	89	25	2				.568	.873	1.440
6	Larry Walker L. Walker	.528	21	53	September 1998	19	21	28	4	0	3	9	15	0	11	4	0	68	41	7	0	0	1	1	.632	.774	1.406
7	Stan Musial S. Musial	.528	18	53	April 1958	13	13	28	6	0	4	10	7	0	5	0	0	61	46	10	0	1	2	5	.574	.868	1.442
8	Ty Cobb T. Cobb	.528	45	127	July 1912	30	33	67	11	8	3	21	9	1		15		137	103	22	0				.562	.811	1.373
9	George Sisler G. Sisler	.526	44	114	June 1920	29	33	60	9	3	4	26	13	1	2	9		131	87	16	3				.578	.763	1.341
10	Dane Iorg D. Iorg	.525	16	40	May 1980	18	8	21	5	0	0	6	4	0	5	0	0	44	26	5	0	0	0	0	.568	.650	1.218
11	Jim Rice J. Rice	.525	19	61	September 1985	16	14	32	6	1	6	25	4	0	6	0	0	66	58	13	0	1	1	2	.545	.951	1.496
12	Sean Berry S. Berry	.524	13	42	August 1998	14	12	22	4	0	5	15	4	1	5	0	0	49	41	9	0	2	0	0	.551	.976	1.527
13	Harry Bay H. Bay	.524	20	42	May 1902	12	8	22	1	1	0	6	5	1		1		53	25	2	5				.583	.595	1.179
14	Ty Cobb T. Cobb	.521	41	96	July 1918	25	17	50	4	4	1	20	10	0	3	7		107	65	9	1				.566	.677	1.243
15	Dale Alexander D. Alexander	.519	18	52	April 1931	14	7	27	7	1	1	9	10	0	1	0		62	39	9	0				.597	.750	1.347
16	Harry Lord H. Lord	.517	26	60	September 1915	17	10	31	3	2	0	4	3	0		5		64	38	5	1				.540	.633	1.173
17	Todd Helton T. Helton	.512	24	82	May 2000	23	32	42	7	0	11	26	18	0	9	0	0	102	82	18	0	2	5	2	.588	1.000	1.588
18	Rudy Pemberton R. Pemberton	.512	12	41	September 1996	13	11	21	8	0	1	10	2	2	4	3	1	45	32	9	0	0	0	0	.556	.780	1.336
19	Joe Jackson J. Jackson	.512	30	86	June 1916	24	18	44	10	3	1		10	2	5	4		100	63	14	2				.571	.733	1.304
20	Al Zarilla A. Zarilla	.511	14	45	July 1944	22	7	23	5	1	3	15	3	1	3	0		49	39	9	0			0	.551	.867	1.418
21	Red Kress R. Kress	.511	17	45	April 1928	15	13	23	3	3	0	10	5	0	4	3		53	32	6	3				.560	.711	1.271
22	Cliff Lee C. Lee	.511	12	45	July 1925	15	18	23	5	4	2	13	3	0	3	1		48	42	11	0				.542	.933	1.475
23	Eddie Collins E. Collins	.511	16	45	April 1913	12	13	23	5	2	0		6	0	5	8		53	32	7	2				.569	.711	1.280
24	Bill Stein B. Stein	.511	19	47	May 1981	19	12	24	4	0	1	9	2	0	2	0	1	49	31	5	0	0	0	3	.531	.660	1.190
25	Harry Heilmann H. Heilmann	.511	19	47	April 1921	12	6	24	4	0	1	11	5	0	3	1		54	31	5	2				.558	.660	1.217