George Brett smashed his most home runs in a month in August 1987, with 10 homers.

	NAME	HR	MONTH	G	AB	R	H	2B	3B	RBI	BB	HBP	SO	SB	CS	PA	TB	XBH	SH	SF	IBB	GIDP	AVG	OBP	SLG	OPS
1	George Brett G. Brett	10	August 1987	29	110	24	34	1	1	23	22	0	14	1	2	134	67	12	0	2	1	3	.309	.418	.609	1.027
2	George Brett G. Brett	8	July 1983	28	110	22	37	9	1	26	12	0	10	0	1	124	72	18	0	2	3	1	.336	.395	.655	1.050
3	George Brett G. Brett	8	August 1977	27	104	22	37	5	5	21	16	0	6	1	4	122	76	18	1	1	4	2	.356	.438	.731	1.169
4	George Brett G. Brett	7	August 1985	27	96	26	35	10	1	21	19	0	10	2	0	118	68	18	0	3	5	2	.365	.458	.708	1.166
5	George Brett G. Brett	7	July 1985	27	95	23	41	5	1	24	20	1	10	4	1	116	69	13	0	0	7	2	.432	.534	.726	1.261
6	George Brett G. Brett	6	July 1990	28	116	27	45	18	1	24	12	0	13	2	0	129	83	25	0	1	3	4	.388	.442	.716	1.157
7	George Brett G. Brett	6	May 1985	27	103	22	36	8	1	22	13	0	8	0	0	118	64	15	0	2	7	3	.350	.415	.621	1.037
8	George Brett G. Brett	6	May 1983	21	77	18	23	1	0	14	13	0	8	0	0	90	42	7	0	0	5	1	.299	.400	.545	.945
9	George Brett G. Brett	6	August 1982	20	76	15	26	5	3	17	6	0	3	0	0	83	55	14	0	1	1	2	.342	.386	.724	1.109
10	George Brett G. Brett	6	September 1980	17	62	8	18	1	0	19	9	0	5	2	1	72	37	7	0	1	2	2	.290	.375	.597	.972
11	George Brett G. Brett	6	August 1980	30	121	26	52	6	1	30	15	1	4	5	3	139	78	13	0	2	4	1	.430	.489	.645	1.134
12	George Brett G. Brett	6	September 1979	23	99	16	31	2	4	20	3	0	6	4	1	104	59	12	0	2	0	2	.313	.327	.596	.923
13	George Brett G. Brett	5	September 1993	24	95	12	29	4	1	17	6	2	10	0	2	105	50	10	0	2	3	3	.305	.352	.526	.879
14	George Brett G. Brett	5	July 1993	20	71	17	22	5	1	13	3	1	8	1	0	76	44	11	0	1	0	4	.310	.342	.620	.962
15	George Brett G. Brett	5	July 1988	27	101	13	36	7	1	21	14	1	12	3	0	117	60	13	0	1	4	0	.356	.436	.594	1.030
16	George Brett G. Brett	5	June 1988	26	93	12	31	10	0	14	13	2	7	0	1	108	56	15	0	0	3	4	.333	.426	.602	1.028
17	George Brett G. Brett	5	April 1988	22	79	19	25	4	0	19	13	0	5	1	0	95	44	9	0	3	2	2	.316	.400	.557	.957
18	George Brett G. Brett	5	September 1987	27	103	15	29	5	1	21	17	0	7	4	1	123	51	11	0	3	7	2	.282	.374	.495	.869
19	George Brett G. Brett	5	August 1986	26	99	16	36	8	2	22	12	0	13	0	0	113	63	15	0	2	1	1	.364	.425	.636	1.061
20	George Brett G. Brett	5	June 1984	26	95	14	25	3	1	14	12	0	5	0	0	108	45	9	0	1	2	2	.263	.343	.474	.816
21	George Brett G. Brett	5	April 1983	16	63	18	29	12	1	20	9	0	5	0	0	72	58	18	0	0	2	1	.460	.528	.921	1.448
22	George Brett G. Brett	5	June 1982	27	103	23	39	6	3	16	17	1	7	0	0	121	66	14	0	0	3	2	.379	.471	.641	1.112
23	George Brett G. Brett	5	June 1980	9	36	9	17	3	0	14	3	0	4	3	0	39	35	8	0	0	0	2	.472	.513	.972	1.485
24	George Brett G. Brett	5	May 1979	28	121	29	47	7	4	20	9	0	10	4	1	130	77	16	0	0	5	1	.388	.431	.636	1.067
25	George Brett G. Brett	5	July 1977	21	89	18	30	6	2	15	7	0	1	2	1	97	55	13	0	1	1	1	.337	.381	.618	.999