Wilt Chamberlain has the most games with 45+ points in a month, with 15 games in January 1962.

Interpreted as:

most 45 or more point games by a player in a month

	NAME	GP	PTS	MONTH	MPG	PPG	RPG	APG	SPG	BPG	FGM	FGA	FG%	3PM	3PA	3P%	FTM	FTA	FT%	TS%	OREB	DREB	TPG	MIN	REB	AST	STL	BLK	TOV	PF	+/-
1	Wilt Chamberlain W. Chamberlain	15	833	January 1962	49.0	55.5	25.5	2.7			21.9	41.1	53.4				11.7	18.0	64.8	56.7				735	382	40				26
2	Wilt Chamberlain W. Chamberlain	13	738	February 1962	48.0	56.8	24.1	2.5			21.7	38.7	56.1				13.4	20.1	66.7	59.7				624	313	32				21
3	Wilt Chamberlain W. Chamberlain	13	745	December 1961	49.9	57.3	27.5	1.8			23.5	46.2	50.7				10.4	16.8	61.6	53.4				649	357	24				28
4	Wilt Chamberlain W. Chamberlain	11	621	November 1962	48.0	56.5	23.6	2.5			22.4	40.5	55.2				11.7	18.6	62.9	57.9				528	260	27				17
5	Elgin Baylor E. Baylor	9	456	December 1961		50.7	21.1				18.0	40.1	44.9				14.7	19.1	76.7	52.2					190					29
6	Wilt Chamberlain W. Chamberlain	8	425	January 1963	47.4	53.1	24.0	1.4			21.9	39.4	55.6				9.4	15.4	61.0	57.6				379	192	11				14
7	Wilt Chamberlain W. Chamberlain	8	399	February 1961	48.6	49.9	28.3				21.4	35.1	60.9				7.1	14.1	50.4	60.3				389	226					15
8	Wilt Chamberlain W. Chamberlain	7	371	November 1964	49.4	53.0	26.1	1.9			22.1	43.3	51.2				8.7	19.7	44.2	51.0				346	183	13				11
9	Rick Barry R. Barry	6	294	February 1967	44.5	49.0	7.8	2.2			17.3	39.7	43.7				14.3	16.5	86.9	52.2				267	47	13				25
10	Wilt Chamberlain W. Chamberlain	6	320	March 1963	48.8	53.3	24.2	5.3			22.2	38.0	58.3				9.0	15.3	58.7	59.6				293	145	32				14
11	Wilt Chamberlain W. Chamberlain	6	347	December 1962	47.5	57.8	25.3				24.3	45.8	53.1				9.2	14.8	61.8	55.2				285	152					12
12	Wilt Chamberlain W. Chamberlain	6	323	November 1961	48.0	53.8	27.8	1.5			22.5	45.2	49.8				8.8	17.3	51.0	51.0				288	167	9				8
13	Wilt Chamberlain W. Chamberlain	6	308	January 1961	48.8	51.3	28.3	1.5			20.2	35.7	56.5				11.0	18.3	60.0	58.7				293	170	9				10
14	Kobe Bryant K. Bryant	5	278	March 2007	46.8	55.6	5.4	2.6	1.2	0.2	19.0	36.8	51.6	4.0	8.4	47.6	13.6	14.8	91.9	64.2	1.2	4.2	2.2	234	27	13	6	1	11	12	+31
15	Kobe Bryant K. Bryant	5	275	January 2006	42.3	55.0	8.6	4.2	1.6	0.2	19.0	36.6	51.9	5.4	10.6	50.9	11.6	13.6	85.3	64.6	1.2	7.4	3.8	212	43	21	8	1	19	11	+51
16	Rick Barry R. Barry	5	241	December 1966	45.8	48.2	9.6	3.4			18.0	37.6	47.9				12.2	13.4	91.0	55.4				229	48	17				14
17	Wilt Chamberlain W. Chamberlain	5	257	February 1963	51.0	51.4	24.0	6.2			22.0	41.6	52.9				7.4	13.0	56.9	54.3				255	120	31				7
18	Wilt Chamberlain W. Chamberlain	5	264	October 1962	51.0	52.8	31.0	3.2			21.6	41.6	51.9				9.6	15.4	62.3	54.6				255	155	16				3
19	Walt Bellamy W. Bellamy	5	232	January 1962		46.4	20.4				18.2						10.0	12.8	78.1						102					16
20	Wilt Chamberlain W. Chamberlain	5	250	January 1960	47.8	50.0	31.2	2.2			20.8	38.4	54.2				8.4	12.8	65.6	56.8				239	156	11				13
21	Damian Lillard D. Lillard	4	206	January 2020	41.4	51.5	7.8	9.5	1.3	0.0	16.0	29.5	54.2	8.5	14.8	57.6	11.0	11.8	93.6	74.3	0.3	7.5	2.3	166	31	38	5	0	9	2	+42
22	James Harden J. Harden	4	206	December 2019	40.0	51.5	5.8	7.0	2.0	1.5	16.3	32.3	50.4	8.3	18.0	45.8	10.8	11.0	97.7	69.4	1.5	4.3	4.5	160	23	28	8	6	18	17	+30
23	James Harden J. Harden	4	224	January 2019	40.3	56.0	10.5	4.5	3.0	0.8	16.0	33.8	47.4	6.0	18.3	32.9	18.0	20.3	88.9	65.6	3.0	7.5	5.0	161	42	18	12	3	20	15	+47
24	Russell Westbrook R. Westbrook	4	208	March 2017	38.2	52.0	10.0	8.3	2.5	0.5	17.0	36.3	46.9	4.5	13.0	34.6	13.5	15.0	90.0	60.7	1.8	8.3	4.8	153	40	33	10	2	19	11	+18
25	Kevin Durant K. Durant	4	196	January 2014	42.3	49.0	5.8	5.5	2.0	1.0	16.5	29.8	55.5	4.5	9.5	47.4	11.5	13.0	88.5	69.1	0.3	5.5	3.0	169	23	22	8	4	12	7	+8