The St. Louis Cardinals had their highest batting average in a season in 1930, with an average of .314.

Interpreted as:

cardinals highest batting average in a regular season

	TEAM	AVG	SEASON	G	W%	W	L	AB	R	H	2B	3B	HR	RBI	BB	HBP	SO	SB	CS	PA	TB	XBH	SH	SF	IBB	GIDP	OBP	SLG	OPS
1	Cardinals	.314	1930	154	.597	92	62	5,512	1,004	1,732	373	89	104	942	479	28	496	72		6,204	2,595	566	185				.372	.471	.843
2	Cardinals	.308	1921	154	.569	87	66	5,309	809	1,635	260	88	83	733	382	29	452	94	94	5,915	2,320	431	195				.358	.437	.795
3	Cardinals	.301	1922	154	.552	85	69	5,425	863	1,634	280	88	107	787	447	28	425	73	63	6,061	2,411	475	161				.357	.444	.802
4	Cardinals	.299	1925	153	.503	77	76	5,329	828	1,592	292	80	109	752	446	27	414	70	51	5,936	2,371	481	134				.356	.445	.801
5	Cardinals	.294	1939	155	.601	92	61	5,447	779	1,601	332	62	98	732	475	27	566	44		6,116	2,351	492	167			116	.354	.432	.785
6	Cardinals	.293	1929	154	.513	78	74	5,364	831	1,569	310	84	100	779	490	22	455	72		6,030	2,347	494	154				.354	.438	.792
7	Cardinals	.291	1900	142	.464	65	75	4,877	744	1,420	141	81	36	602	406	81	318	243		5,444	1,831	258	80				.356	.375	.731
8	Cardinals	.290	1924	154	.422	65	89	5,349	740	1,552	270	87	67	672	382	33	418	86	86	5,909	2,197	424	145				.341	.411	.752
9	Cardinals	.289	1920	155	.487	75	79	5,495	675	1,589	238	96	32	600	373	26	484	126	114	6,086	2,115	366	192				.337	.385	.722
10	Cardinals	.288	1934	154	.621	95	58	5,502	799	1,582	294	75	104	748	392	18	535	69		5,988	2,338	473	76			117	.337	.425	.762
11	Cardinals	.286	1926	156	.578	89	65	5,381	817	1,541	259	82	90	756	478	33	518	83		6,104	2,234	431	212				.348	.415	.763
12	Browns	.286	1894	133	.424	56	76	4,610	771	1,320	171	113	54	650	442	40	289	190		5,204	1,879	338	112				.354	.408	.761
13	Cardinals	.286	1923	154	.516	79	74	5,526	746	1,582	274	76	63	676	438	38	446	89	61	6,137	2,197	413	135				.343	.398	.740
14	Cardinals	.286	1931	154	.656	101	53	5,435	815	1,554	353	74	60	751	432	32	475	114		5,989	2,235	487	90				.342	.411	.753
15	Perfectos	.285	1899	155	.556	84	67	5,304	819	1,514	172	88	47	699	468	33	264	210		5,913	2,003	307	108				.347	.378	.725
16	Cardinals	.284	1901	142	.543	76	64	5,039	792	1,430	187	94	39	657	314	90	540	190		5,565	1,922	320	122				.337	.381	.718
17	Cardinals	.284	1935	154	.623	96	58	5,457	829	1,548	286	59	86	762	404	19	521	71		5,977	2,210	431	97			100	.335	.405	.740
18	Cardinals	.282	1937	157	.526	81	73	5,476	789	1,543	264	67	94	731	385	16	569	78		5,966	2,223	425	89			116	.331	.406	.737
19	Browns	.282	1895	136	.298	39	92	4,814	752	1,356	155	88	39	633	388	28	283	208		5,294	1,804	282	64				.339	.375	.714
20	Cardinals	.281	2008	162	.531	86	76	5,636	779	1,585	283	26	174	744	577	42	985	73	32	6,370	2,442	483	71	44	63	150	.350	.433	.783
21	Cardinals	.281	1928	154	.617	95	59	5,357	807	1,505	292	70	113	749	568	32	438	82		6,144	2,276	475	187				.353	.425	.778
22	Cardinals	.281	1954	154	.468	72	82	5,405	799	1,518	285	58	119	748	582	30	586	63	46	6,127	2,276	462	44	66		127	.350	.421	.771
23	Cardinals	.281	1936	155	.565	87	67	5,537	795	1,554	332	60	88	733	442	15	577	69		6,065	2,270	480	71			125	.336	.410	.745
24	Cardinals	.279	1938	156	.470	71	80	5,528	725	1,542	288	74	91	680	412	16	492	55		6,039	2,251	453	83			124	.331	.407	.738
25	Cardinals	.279	1943	157	.682	105	49	5,435	679	1,515	259	72	70	638	428	19	437	40		6,055	2,128	401	173			92	.334	.392	.725