Joe DiMaggio had the best batting average in the AL in 1940, with an average of .352.

Interpreted as:

best avg with a minimum of 3.1 PA per team game by a player in the al in 1940

	NAME	AVG	SEASON	TM	G	AB	R	H	2B	3B	HR	RBI	BB	HBP	SO	SB	CS	PA	TB	XBH	SH	GIDP	OBP	SLG	OPS	WRC	WRAA	WOBA	WRC+	BRAA
1	Joe DiMaggio J. DiMaggio	.352	1940	NYY	132	508	93	179	28	9	31	133	61	3	30	1	2	572	318	68	0	16	.425	.626	1.051	128	59.2	.464	167	52.5
2	Luke Appling L. Appling	.348	1940	CWS	150	566	96	197	27	13	0	79	69	1	35	3	5	639	250	40	3	11	.420	.442	.862	109	32.2	.398	125	22.3
3	Ted Williams T. Williams	.344	1940	BSA	144	561	134	193	43	14	23	113	96	3	54	4	4	661	333	80	1	13	.442	.594	1.036	146	66.4	.461	159	53.1
4	Rip Radcliff R. Radcliff	.342	1940	SLA	150	584	83	200	33	9	7	81	47	1	20	6	4	636	272	49	4	11	.392	.466	.858	105	28.7	.391	117	15.1
5	Hank Greenberg H. Greenberg	.340	1940	DET	148	573	129	195	50	8	41	150	93	1	75	6	3	670	384	99	3	15	.433	.670	1.103	160	78.8	.482	168	62.8
6	Barney McCosky B. McCosky	.340	1940	DET	143	589	123	200	39	19	4	57	67	1	41	13	9	660	289	62	3	8	.408	.491	.899	118	38.4	.407	125	22.6
7	Taffy Wright T. Wright	.337	1940	CWS	147	581	79	196	31	9	5	88	43	2	25	4	7	627	260	45	1	9	.385	.448	.832	99	23	.380	116	13.4
8	Cecil Travis C. Travis	.322	1940	WSH	136	528	60	170	37	11	2	76	48	2	23	0	1	584	235	50	6	5	.381	.445	.826	90	19.9	.377	116	13
9	Lou Finney L. Finney	.320	1940	BSA	130	534	73	171	31	15	5	73	33	0	13	5	2	574	247	51	7	16	.360	.463	.822	86	16.9	.371	107	5.3
10	Buddy Lewis B. Lewis	.317	1940	WSH	148	600	101	190	38	10	6	63	74	1	36	15	10	679	266	54	4	10	.393	.443	.836	109	26.7	.384	120	18.7
11	Rudy York R. York	.316	1940	DET	155	588	105	186	46	6	33	134	89	4	88	3	2	685	343	85	4	12	.410	.583	.993	141	58.1	.441	144	41.8
12	Charlie Gehringer C. Gehringer	.313	1940	DET	139	515	108	161	33	3	10	81	101	3	17	10	0	629	230	46	10	9	.428	.447	.875	112	35.8	.406	124	20.8
13	Wally Moses W. Moses	.309	1940	PHA	142	537	91	166	41	9	9	50	75	2	44	6	4	619	252	59	5	4	.396	.469	.865	104	29.7	.394	122	18.6
14	Frankie Hayes F. Hayes	.308	1940	PHA	136	465	73	143	23	4	16	70	61	1	59	9	3	529	222	43	2	13	.389	.477	.866	89	25.3	.394	122	15.8
15	Roy Weatherly R. Weatherly	.303	1940	CLE	135	578	90	175	35	11	12	59	27	1	26	9	8	615	268	58	9	9	.335	.464	.799	86	12	.359	109	7.7
16	Doc Cramer D. Cramer	.303	1940	BSA	150	661	94	200	27	12	1	51	36	1	29	3	5	712	254	40	14	13	.340	.384	.724	85	-1.1	.332	84	-15.5
17	Wally Judnich W. Judnich	.303	1940	SLA	137	519	97	157	27	7	24	89	54	0	71	8	5	577	270	58	4	7	.368	.520	.888	99	29.1	.398	121	16.7
18	Jimmie Foxx J. Foxx	.297	1940	BSA	144	515	106	153	30	4	36	119	101	0	87	4	7	618	299	70	2	18	.412	.581	.993	127	52.4	.441	147	39.9
19	Lou Boudreau L. Boudreau	.295	1940	CLE	155	627	97	185	46	10	9	101	73	2	39	6	3	706	278	65	4	23	.370	.443	.814	106	21	.372	117	16.1
20	Hal Trosky Sr. H. Trosky Sr.	.295	1940	CLE	140	522	85	154	39	4	25	93	79	4	45	1	2	608	276	68	3	5	.392	.529	.920	111	38.1	.413	141	33.9
21	Gee Walker G. Walker	.294	1940	WSH	140	595	87	175	29	7	13	96	24	3	58	21	4	622	257	49	0	12	.325	.432	.757	79	3.9	.342	96	-3.4
22	George Case G. Case	.293	1940	WSH	154	656	109	192	29	5	5	56	52	5	39	35	10	720	246	39	7	5	.349	.375	.724	88	1.1	.336	93	-7.4
23	Bobby Doerr B. Doerr	.291	1940	BSA	151	595	87	173	37	10	22	105	57	0	53	10	5	658	296	69	6	16	.353	.497	.850	104	24.5	.381	112	11.2
24	Ben Chapman B. Chapman	.286	1940	CLE	143	548	82	157	40	6	4	50	78	2	45	13	7	631	221	50	3	19	.377	.403	.781	90	14.2	.363	111	9.8
25	Charlie Keller C. Keller	.286	1940	NYY	138	500	102	143	18	15	21	93	106	0	65	8	2	609	254	54	3	11	.411	.508	.919	113	39.3	.415	138	32.1