Isiah Thomas had his most assists per game in a month in January 1985, with 15.6 per game.

	NAME	APG	MONTH	GP	MPG	PPG	RPG	SPG	BPG	FGM	FGA	FG%	3PM	3PA	3P%	FTM	FTA	FT%	TS%	OREB	DREB	TPG	MIN	PTS	REB	AST	STL	BLK	TOV	PF
1	Isiah Thomas I. Thomas	15.6	January 1985	14	35.9	19.4	5.0	2.6	0.5	6.9	14.6	47.5	0.3	1.1	25.0	5.2	6.3	83.0	55.8	1.4	3.6	2.8	502	271	70	219	37	7	39	35
2	Isiah Thomas I. Thomas	15.3	April 1985	9	39.7	18.6	4.4	2.3	0.0	7.0	14.7	47.7	0.2	1.2	18.2	4.3	4.7	92.9	55.5	1.1	3.3	4.9	357	167	40	138	21	0	44	30
3	Isiah Thomas I. Thomas	14.8	February 1985	12	37.9	18.9	3.9	2.3	0.8	6.8	17.3	39.4	0.3	1.5	22.2	4.9	6.8	72.0	46.5	1.6	2.3	3.1	455	227	47	178	27	9	37	49
4	Isiah Thomas I. Thomas	14.6	March 1985	15	38.3	21.3	4.3	2.0	0.1	8.5	16.9	50.4	0.5	1.7	26.9	3.8	4.5	83.8	56.4	1.5	2.9	3.5	575	320	65	219	30	2	53	55
5	Isiah Thomas I. Thomas	13.0	October 1984	3	37.0	24.0	4.7	2.0	0.3	8.3	21.7	38.5	1.7	3.3	50.0	5.7	7.0	81.0	48.5	1.7	3.0	4.0	111	72	14	39	6	1	12	14
6	Isiah Thomas I. Thomas	12.8	December 1984	14	37.9	21.8	5.4	2.6	0.4	8.3	18.3	45.3	0.2	0.8	27.3	5.0	6.3	79.5	51.7	1.8	3.6	4.0	530	305	76	179	36	5	56	49
7	Isiah Thomas I. Thomas	12.4	April 1984	7	39.1	20.9	4.4	2.6	0.4	7.7	17.9	43.2	0.3	1.3	22.2	5.1	6.4	80.0	50.4	1.3	3.1	3.7	274	146	31	87	18	3	26	28
8	Isiah Thomas I. Thomas	12.4	March 1984	17	36.4	20.0	4.1	2.5	0.2	7.9	16.6	47.3	0.3	0.9	33.3	3.9	5.6	69.8	52.3	1.5	2.6	3.9	619	340	70	211	42	4	66	70
9	Isiah Thomas I. Thomas	11.9	November 1985	14	34.6	18.9	2.8	2.8	0.2	7.5	14.6	51.2	0.1	0.6	12.5	3.9	5.1	76.1	56.1	0.5	2.3	4.2	485	265	39	166	39	3	59	36
10	Isiah Thomas I. Thomas	11.7	February 1984	15	36.1	26.7	4.3	2.4	0.4	10.3	19.7	52.5	0.1	0.7	20.0	5.9	7.9	73.9	57.6	1.1	3.2	4.3	542	400	65	175	36	6	64	59
11	Isiah Thomas I. Thomas	11.5	February 1989	11	39.5	17.4	4.5	1.9	0.5	6.4	14.9	42.7	0.6	2.0	31.8	4.0	4.8	83.0	51.0	0.7	3.8	3.4	435	191	50	127	21	5	37	27
12	Isiah Thomas I. Thomas	11.5	February 1986	14	38.4	24.1	4.5	2.4	0.4	8.9	18.1	49.0	0.4	1.5	28.6	6.0	7.4	81.6	56.7	1.4	3.1	2.9	538	338	63	161	33	5	40	42
13	Isiah Thomas I. Thomas	11.3	December 1985	13	36.2	21.3	3.6	2.0	0.2	7.9	16.8	47.0	0.3	1.3	23.5	5.2	6.3	81.7	54.3	1.4	2.2	4.0	470	277	47	147	26	2	52	53
14	Isiah Thomas I. Thomas	10.9	December 1986	14	37.6	17.9	3.9	2.6	0.4	6.9	16.5	41.6	0.5	1.9	26.9	3.6	5.4	67.1	47.3	1.1	2.7	4.7	526	250	54	153	37	6	66	43
15	Isiah Thomas I. Thomas	10.8	January 1984	13	38.3	18.8	4.2	2.8	0.4	7.1	17.2	41.1	0.1	0.4	20.0	4.6	6.2	74.1	47.2	1.7	2.5	3.6	498	245	55	141	37	5	47	47
16	Isiah Thomas I. Thomas	10.8	November 1984	14	39.9	25.6	3.5	2.0	0.1	9.6	20.8	46.4	0.3	1.5	19.0	6.0	7.4	80.8	53.2	1.0	2.5	4.4	559	358	49	151	28	1	61	55
17	Isiah Thomas I. Thomas	10.8	December 1983	13	34.5	21.4	3.7	1.9	0.3	8.5	17.8	47.6	0.6	1.5	42.1	3.8	5.2	73.5	53.3	1.2	2.5	3.6	448	278	48	140	25	4	47	51
18	Isiah Thomas I. Thomas	10.4	March 1987	17	39.4	21.2	4.5	1.0	0.3	8.1	16.8	47.9	0.1	0.9	6.7	5.1	6.1	83.5	54.5	1.1	3.4	3.6	670	361	76	177	17	5	62	45
19	Isiah Thomas I. Thomas	10.4	January 1987	17	36.7	21.7	3.8	1.8	0.1	7.9	17.0	46.7	0.2	1.2	14.3	5.6	7.4	76.2	53.6	0.9	2.8	4.8	624	369	64	176	30	1	81	56
20	Isiah Thomas I. Thomas	10.3	November 1993	6	34.5	15.5	3.2	1.0	0.0	5.0	14.0	35.7	1.0	2.3	42.9	4.5	6.5	69.2	46.0	1.2	2.0	4.3	207	93	19	62	6	0	26	20
21	Isiah Thomas I. Thomas	10.3	April 1987	9	34.8	18.3	3.1	1.4	0.2	7.1	15.3	46.4	0.0	0.3	0.0	4.1	5.0	82.2	52.3	0.9	2.2	4.0	313	165	28	93	13	2	36	22
22	Isiah Thomas I. Thomas	10.3	January 1990	16	39.0	19.6	3.3	1.4	0.3	7.1	16.3	43.7	0.4	1.8	25.0	4.9	6.4	77.5	51.3	0.8	2.5	3.4	624	314	53	165	23	5	55	37
23	Isiah Thomas I. Thomas	10.3	December 1990	15	37.2	18.1	3.0	1.9	0.2	7.0	15.3	45.9	0.1	1.1	6.3	4.1	5.1	79.2	51.7	0.7	2.3	4.4	558	272	45	154	29	3	66	49
24	Isiah Thomas I. Thomas	10.3	October 1985	4	37.0	20.8	4.5	3.3	0.5	6.8	14.5	46.6	0.5	0.8	66.7	6.8	9.3	73.0	55.9	1.0	3.5	3.5	148	83	18	41	13	2	14	17
25	Isiah Thomas I. Thomas	10.2	February 1987	12	37.6	22.6	4.2	2.0	0.4	8.9	17.8	50.2	0.5	1.6	31.6	4.3	5.7	75.0	55.8	1.3	2.8	4.1	451	271	50	122	24	5	49	37