which team has the highest slg in a calendar month

The Baltimore Orioles have the highest slugging percentage by a team in a month, with a slugging percentage of .872 in October 1977.

	TEAM	SLG	MONTH	G	W%	W	L	AB	R	H	2B	3B	HR	RBI	BB	HBP	SO	SB	CS	PA	TB	XBH	SH	SF	IBB	GIDP	AVG	OBP	OPS
1	Orioles	.872	October 1977	1	1.000	1	0	39	8	14	2	0	6	8	3	0	6	1	2	42	34	8	0	0	1	0	.359	.405	1.277
2	Rockies	.857	October 1995	1	1.000	1	0	35	10	15	5	2	2	10	4	1	1	0	2	42	30	9	0	2	3	1	.429	.476	1.333
3	Red Sox	.810	October 2006	1	1.000	1	0	21	9	7	1	0	3	9	5	1	4	0	0	27	17	4	0	0	0	1	.333	.481	1.291
4	Astros	.805	October 1995	1	1.000	1	0	41	8	16	3	1	4	7	6	0	6	0	0	48	33	8	0	1	1	2	.390	.458	1.263
5	Yankees	.804	March 2025	3	1.000	3	0	102	36	34	3	0	15	35	16	3	21	0	1	124	82	18	0	3	1	1	.333	.427	1.231
6	Indians	.788	October 2000	1	1.000	1	0	33	11	12	2	0	4	10	1	1	7	0	0	38	26	6	1	2	0	1	.364	.378	1.166
7	Cubs	.774	October 1916	1	1.000	1	0	31	6	11	4	0	3	5	3	0	2	1		35	24	7	1				.355	.412	1.186
8	Blue Jays	.725	October 2021	3	1.000	3	0	109	28	38	8	0	11	28	6	2	13	1	0	117	79	19	0	0	0	1	.349	.393	1.118
9	Mariners	.722	March 1998	1	.000	0	1	36	9	12	2	0	4	9	2	1	7	0	0	40	26	6	1	0	0	1	.333	.385	1.107
10	Phillies	.719	October 1989	1	1.000	1	0	32	5	11	4	1	2	5	1	0	3	1	0	33	23	7	0	0	0	2	.344	.364	1.082
11	Reds	.700	October 1967	1	1.000	1	0	30	10	12	3	0	2	9	3	0	5	0	0	35	21	5	1	1	0	3	.400	.441	1.141
12	White Sox	.692	March 2008	1	.000	0	1	39	8	13	5	0	3	8	5	0	11	1	0	44	27	8	0	0	1	0	.333	.409	1.101
13	Royals	.688	October 2023	1	1.000	1	0	32	5	11	0	1	3	5	1	0	8	2	1	35	22	4	1	1	0	0	.344	.353	1.040
14	Rangers	.688	October 1995	1	1.000	1	0	32	9	13	4	1	1	9	4	1	5	1	1	39	22	6	1	1	1	0	.406	.474	1.161
15	Giants	.686	October 1995	1	.000	0	1	35	9	13	5	0	2	9	3	0	8	2	0	44	24	7	3	3	0	1	.371	.390	1.076
16	Angels	.680	October 1982	3	1.000	3	0	100	17	35	13	1	6	17	6	2	17	0	2	111	68	20	2	1	1	3	.350	.394	1.074
17	Cubs	.675	March 2003	1	1.000	1	0	40	15	16	3	1	2	15	12	0	6	1	1	53	27	6	0	1	0	2	.400	.528	1.203
18	Rays	.674	October 2023	1	1.000	1	0	43	12	16	4	0	3	11	3	1	9	2	0	47	29	7	0	0	0	0	.372	.426	1.100
19	Astros	.670	October 2021	3	.667	2	1	112	23	38	6	2	9	23	8	1	21	0	0	122	75	17	1	0	0	1	.339	.388	1.058
20	Pirates	.667	March 2003	1	1.000	1	0	36	10	12	3	0	3	10	5	0	6	0	0	43	24	6	1	1	0	0	.333	.405	1.071
21	Brewers	.667	March 2003	1	.000	0	1	39	9	12	2	0	4	8	2	0	7	0	0	42	26	6	0	1	0	0	.308	.333	1.000
22	Yankees	.661	October 2012	3	1.000	3	0	121	28	44	9	0	9	28	16	1	19	2	1	140	80	18	0	2	1	3	.364	.436	1.097
23	Phillies	.659	March 2014	1	1.000	1	0	44	14	17	3	0	3	13	6	0	8	3	0	50	29	6	0	0	0	0	.386	.460	1.119
24	Orioles	.658	March 2023	1	1.000	1	0	38	10	15	4	0	2	9	9	1	8	5	0	49	25	6	1	0	0	1	.395	.521	1.179
25	Tigers	.658	October 2000	1	1.000	1	0	38	12	19	3	0	1	12	5	0	5	0	1	46	25	4	3	0	0	2	.500	.558	1.216