The New York Yankees have put up the most runs by a team in a month, with 275 runs in August 1938.

	TEAM	R	MONTH	G	W%	W	L	AB	H	2B	3B	HR	RBI	BB	HBP	SO	SB	CS	PA	TB	XBH	SH	SF	IBB	GIDP	AVG	OBP	SLG	OPS
1	Yankees	275	August 1938	36	.778	28	8	1,267	349	65	20	51	261	219	10	154	23		1,511	607	136	15				.275	.386	.479	.865
2	Yankees	261	June 1930	28	.714	20	8	1,043	382	64	26	40	245	137	5	99	22		1,219	618	130	34				.366	.442	.593	1.035
3	Giants	260	June 1929	33	.636	21	12	1,250	410	66	14	38	242	138	8	90	24		1,447	618	118	51				.328	.398	.494	.893
4	Yankees	254	August 1939	31	.677	21	10	1,145	353	51	9	49	237	167	10	121	9		1,344	569	109	22			25	.308	.401	.497	.898
5	Yankees	248	July 1931	31	.710	22	9	1,117	337	55	20	37	231	145	5	95	34		1,288	543	112	21				.302	.384	.486	.870
6	Pirates	247	August 1928	32	.719	23	9	1,163	402	58	36	14	228	103	11	65	18		1,323	574	108	46				.346	.404	.494	.898
7	Red Sox	245	June 1950	29	.552	16	13	1,098	343	74	9	43	240	157	6	118	7		1,272	564	126	11			25	.312	.401	.514	.915
8	Indians	244	July 1936	33	.656	21	11	1,254	442	97	22	34	229	82	4	81	14		1,361	685	153	21				.352	.394	.546	.940
9	Yankees	241	July 1930	35	.486	17	18	1,277	375	72	17	32	218	125	4	131	12		1,439	577	121	33				.294	.358	.452	.810
10	Cubs	239	July 1929	33	.750	24	8	1,171	387	78	13	35	226	114	4	106	15		1,322	596	126	33				.330	.392	.509	.901
11	Cubs	236	July 1935	34	.765	26	8	1,265	390	82	10	24	219	98	8	81	25		1,404	564	116	33				.308	.362	.446	.808
12	Athletics	236	July 1930	32	.719	23	9	1,132	345	65	19	28	222	164	9	128	19		1,346	532	112	41				.305	.397	.470	.867
13	Yankees	233	August 1935	35	.571	20	15	1,287	377	70	19	20	211	167	4	114	23		1,478	545	109	20				.293	.376	.423	.799
14	Athletics	232	July 1932	33	.636	21	12	1,230	373	80	12	34	218	138	3	132	6		1,396	579	126	25				.303	.375	.471	.846
15	Yankees	229	July 1927	31	.774	24	7	1,090	351	68	26	34	208	134	6	122	22		1,265	573	128	35				.322	.399	.526	.925
16	Indians	228	July 1925	31	.581	18	13	1,143	414	70	18	11	195	109	6	66	28		1,293	553	99	35				.362	.421	.484	.904
17	Pirates	226	September 1901	32	.781	25	7	1,137	363	59	22	8	197	115	14	76	37		1,289	490	89	23				.319	.389	.431	.820
18	Tigers	223	August 1937	32	.613	19	12	1,136	358	68	9	49	214	147	5	128	26		1,306	591	126	18				.315	.396	.520	.916
19	White Sox	223	July 1936	31	.645	20	11	1,156	365	68	15	9	205	131	5	86	13		1,312	490	92	20				.316	.388	.424	.812
20	Giants	223	July 1930	33	.636	21	12	1,184	395	56	10	30	199	87	6	78	13		1,316	561	96	39				.334	.382	.474	.856
21	Yankees	223	July 1920	34	.588	20	14	1,142	326	73	16	38	201	138	7	137	16		1,335	545	127	48				.285	.366	.477	.843
22	Yankees	222	August 1998	32	.688	22	10	1,158	367	69	3	54	208	129	3	211	16	11	1,307	604	126	3	14	8	30	.317	.383	.522	.904
23	Yankees	222	July 1924	37	.622	23	14	1,291	383	63	18	32	201	121	5	92	21		1,460	578	113	43				.297	.359	.448	.807
24	Red Sox	221	August 1950	30	.800	24	6	1,086	347	63	18	25	207	143	2	100	7		1,245	521	106	14			28	.320	.400	.480	.879
25	Yankees	220	July 1937	29	.714	20	8	1,042	310	66	16	46	207	154	8	101	7		1,215	546	128	11				.298	.392	.524	.916