who has the most home runs in a single month since 1970

Since 1970, Sammy Sosa has hit the most home runs when hitting >0 singles in a month, with 20 homers in June 1998.

	NAME	HR	1B	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	Sammy Sosa S. Sosa	20	12	June 1998	27	114	25	34	2	0	40	6	0	27	0	2	121	96	22	0	1	0	3	.298	.331	.842	1.173
2	Giancarlo Stanton G. Stanton	18	14	August 2017	29	109	28	38	6	0	37	14	3	31	1	0	127	98	24	0	1	4	2	.349	.433	.899	1.332
3	Sammy Sosa S. Sosa	17	19	August 2001	29	109	31	42	3	3	36	16	3	24	0	1	130	102	23	0	2	3	0	.385	.469	.936	1.405
4	Barry Bonds B. Bonds	17	9	May 2001	27	84	28	31	5	0	30	31	2	24	3	1	117	87	22	0	0	5	1	.369	.547	1.036	1.583
5	Albert Belle A. Belle	17	3	September 1995	27	97	30	30	10	0	32	13	4	13	2	1	115	91	27	0	1	1	5	.309	.409	.938	1.347
6	Kyle Schwarber K. Schwarber	16	12	June 2021	27	100	22	28	0	0	30	13	1	33	0	0	116	76	16	0	2	0	3	.280	.362	.760	1.122
7	J.D. Martinez	16	16	September 2017	24	99	26	40	8	0	36	7	0	29	1	0	107	96	24	0	1	1	7	.404	.439	.970	1.409
8	Edwin Encarnacion E. Encarnacion	16	10	May 2014	30	114	26	32	5	1	33	16	0	16	1	0	130	87	22	0	0	0	4	.281	.369	.763	1.132
9	Mark McGwire M. McGwire	16	8	July 1999	25	88	21	26	2	0	30	22	0	21	0	0	110	76	18	0	0	4	0	.295	.436	.864	1.300
10	Albert Belle A. Belle	16	19	July 1998	26	101	24	41	6	0	32	9	0	13	0	0	110	95	22	0	0	2	1	.406	.455	.941	1.395
11	Mark McGwire M. McGwire	16	10	May 1998	26	86	25	28	2	0	32	33	0	27	0	0	119	78	18	0	0	5	0	.326	.513	.907	1.420
12	Shohei Ohtani S. Ohtani	15	13	May 2025	27	110	31	34	5	1	27	17	0	31	2	3	128	86	21	0	1	5	2	.309	.398	.782	1.180
13	Shohei Ohtani S. Ohtani	15	16	June 2023	27	104	27	41	7	3	29	21	0	26	4	1	126	99	25	0	1	2	2	.394	.492	.952	1.444
14	Aaron Judge A. Judge	15	6	September 2017	27	90	29	28	7	0	32	28	0	32	2	0	121	80	22	0	3	1	1	.311	.463	.889	1.352
15	Troy Tulowitzki T. Tulowitzki	15	14	September 2010	28	115	30	37	6	2	40	9	1	19	2	0	125	92	23	0	0	1	3	.322	.376	.800	1.176
16	Jim Thome J. Thome	15	10	June 2004	27	98	25	30	5	0	31	21	1	25	0	0	121	80	20	0	1	6	1	.306	.430	.816	1.246
17	Alex Rodriguez A. Rodriguez	15	14	August 2003	29	106	30	36	5	2	31	21	2	17	5	1	130	90	22	0	1	3	3	.340	.454	.849	1.303
18	Rafael Palmeiro R. Palmeiro	15	15	August 1999	30	110	25	35	4	1	39	14	0	17	0	0	128	86	20	0	4	1	1	.318	.383	.782	1.165
19	Sammy Sosa S. Sosa	15	14	August 1999	30	109	20	31	2	0	28	20	1	36	1	3	130	78	17	0	0	4	4	.284	.400	.716	1.116
20	Mark McGwire M. McGwire	15	10	September 1998	25	82	24	27	2	0	28	19	1	24	0	0	102	74	17	0	0	1	1	.329	.461	.902	1.363
21	Mark McGwire M. McGwire	15	12	September 1997	26	98	21	28	1	0	24	20	2	36	1	0	121	74	16	0	1	5	0	.286	.413	.755	1.168
22	Juan Gonzalez J. Gonzalez	15	19	July 1996	27	108	22	44	10	0	38	14	0	15	0	0	123	99	25	0	1	7	2	.407	.472	.917	1.388
23	Ken Griffey Jr. K. Griffey Jr.	15	15	May 1994	27	99	28	33	3	0	25	16	0	17	3	0	115	81	18	0	0	6	1	.333	.426	.818	1.244
24	Andre Dawson A. Dawson	15	17	August 1987	27	110	23	34	2	0	28	9	0	16	2	2	119	81	17	0	0	2	4	.309	.361	.736	1.098
25	Mark McGwire M. McGwire	15	8	May 1987	25	91	23	25	0	2	24	18	0	20	0	0	110	74	17	0	1	2	1	.275	.391	.813	1.204