The Charlotte Hornets have the best three-point percentage by a team in a season, at 42.8 percent in 1996-97.

highest 3 point percentage by a team in a season

TEAM	3P%	SEASON	GP	MPG	PPG	RPG	APG	SPG	BPG	TPG	FGM	FGA	FG%	3PM	3PA	FTM	FTA	FT%	MIN	PTS	REB	AST	STL	BLK	TOV	PF
Charlotte Hornets	42.8	1996-97	82	241.5	98.9	39.1	24.6	7.3	4.3	14.7	36.4	77.3	47.1	7.2	16.9	18.8	24.2	77.7	19,805	8,108	3,208	2,021	597	349	1,203	1,702
Golden State Warriors	41.6	2015-16	82	242.4	114.9	46.2	28.9	8.4	6.1	15.2	42.5	87.3	48.7	13.1	31.6	16.7	21.8	76.3	19,880	9,421	3,788	2,373	689	498	1,245	1,701
Phoenix Suns	41.2	2009-10	82	240.6	110.2	43.0	23.3	5.8	5.1	14.8	40.7	82.8	49.2	8.9	21.6	19.9	25.8	77.0	19,730	9,039	3,526	1,912	479	418	1,210	1,713
L.A. Clippers	41.1	2020-21	72	240.0	114.0	44.2	24.4	7.1	4.1	13.2	41.8	86.7	48.2	14.3	34.7	16.2	19.3	83.9	17,280	8,209	3,179	1,756	509	295	950	1,383
Washington Bullets	40.7	1995-96	82	241.5	102.5	39.7	22.1	7.2	6.2	16.2	39.0	80.7	48.4	6.0	14.8	18.4	25.3	72.8	19,805	8,408	3,257	1,815	592	506	1,327	1,981
San Antonio Spurs	40.7	2000-01	82	241.8	96.2	44.1	21.7	6.9	7.0	14.0	35.2	76.4	46.1	5.4	13.3	20.4	28.5	71.5	19,830	7,886	3,614	1,778	568	576	1,145	1,551
Cleveland Cavaliers	40.7	1989-90	82	242.4	102.6	42.8	25.7	7.9	6.2	15.2	39.2	85.1	46.1	4.2	10.4	20.0	26.8	74.4	19,880	8,411	3,508	2,106	645	512	1,243	1,666
Detroit Pistons	40.4	1995-96	82	241.8	95.4	40.5	19.6	6.2	4.3	14.8	34.3	74.7	45.9	6.6	16.5	20.2	26.9	75.1	19,830	7,822	3,324	1,610	506	352	1,215	1,953
Chicago Bulls	40.3	1995-96	82	240.6	105.2	44.6	24.8	9.1	4.2	14.3	40.2	84.0	47.8	6.6	16.5	18.2	24.4	74.6	19,730	8,625	3,658	2,033	745	345	1,175	1,807
Golden State Warriors	40.3	2012-13	82	241.5	101.2	45.0	22.5	6.9	4.2	15.1	38.2	83.4	45.8	8.0	19.9	16.8	21.3	79.0	19,805	8,296	3,686	1,845	567	346	1,236	1,753
Sacramento Kings	40.1	2003-04	82	241.2	102.8	41.2	26.2	8.7	4.0	13.9	37.8	81.8	46.2	7.3	18.3	19.8	24.9	79.5	19,780	8,433	3,380	2,152	710	325	1,137	1,586
Phoenix Suns	39.9	2006-07	82	242.7	110.2	40.5	25.9	6.7	4.8	14.5	41.3	83.6	49.4	9.6	24.0	18.0	22.3	80.8	19,905	9,037	3,320	2,122	553	394	1,189	1,659
Phoenix Suns	39.9	2005-06	82	243.4	108.4	41.8	26.6	6.7	5.0	13.3	41.8	87.4	47.9	10.2	25.6	14.5	18.0	80.6	19,955	8,886	3,428	2,179	549	412	1,088	1,683
Seattle SuperSonics	39.9	2000-01	82	241.5	97.3	41.7	21.9	8.0	5.0	15.3	36.9	81.1	45.6	5.7	14.3	17.7	24.2	73.2	19,805	7,978	3,421	1,792	657	409	1,252	1,733
Golden State Warriors	39.8	2014-15	82	240.6	110.0	44.7	27.4	9.3	6.0	14.5	41.6	87.0	47.8	10.8	27.0	16.0	20.8	76.8	19,730	9,016	3,667	2,248	762	496	1,185	1,628
Charlotte Hornets	39.7	1994-95	82	241.5	100.6	39.4	25.3	7.6	4.9	14.9	37.2	78.5	47.4	6.8	17.2	19.4	24.9	77.7	19,805	8,249	3,227	2,072	620	399	1,224	1,685
San Antonio Spurs	39.7	2013-14	82	240.9	105.4	43.3	25.2	7.4	5.1	14.4	40.6	83.5	48.6	8.5	21.4	15.7	20.0	78.5	19,755	8,639	3,548	2,064	604	420	1,180	1,495
Boston Celtics	39.7	2008-09	82	242.4	100.9	42.1	22.7	7.6	4.7	15.6	37.5	77.2	48.6	6.6	16.5	19.4	25.3	76.5	19,880	8,275	3,455	1,862	621	387	1,280	1,897
San Antonio Spurs	39.7	2010-11	82	241.2	103.7	41.9	22.4	7.3	4.5	13.4	38.4	80.8	47.5	8.4	21.1	18.5	24.2	76.7	19,780	8,502	3,432	1,836	602	372	1,101	1,556
Miami Heat	39.6	2012-13	82	242.4	102.9	38.6	23.0	8.7	5.4	13.9	38.4	77.4	49.6	8.7	22.1	17.4	23.0	75.4	19,880	8,436	3,166	1,890	710	441	1,143	1,533
Seattle SuperSonics	39.6	1997-98	82	240.9	100.6	38.5	24.2	9.8	4.6	14.0	37.2	78.8	47.3	7.6	19.1	18.5	25.7	72.1	19,755	8,246	3,156	1,986	804	376	1,145	1,812
Phoenix Suns	39.3	2007-08	82	241.2	110.1	41.5	26.7	6.5	6.3	14.4	41.4	82.7	50.0	8.5	21.5	18.9	24.1	78.3	19,780	9,026	3,403	2,188	532	518	1,184	1,633
Phoenix Suns	39.3	2004-05	82	241.2	110.4	44.1	23.5	7.0	5.5	13.7	40.9	85.6	47.7	9.7	24.7	19.0	25.4	74.8	19,780	9,054	3,619	1,927	572	453	1,125	1,563
San Antonio Spurs	39.3	2011-12	66	241.5	103.7	43.0	23.2	7.4	4.4	13.6	39.6	82.8	47.8	8.4	21.3	16.2	21.6	74.8	15,940	6,841	2,836	1,528	490	293	895	1,143
Cleveland Cavaliers	39.3	2008-09	82	241.2	100.3	42.2	20.3	7.2	5.3	12.7	36.9	78.7	46.8	8.0	20.4	18.6	24.5	75.7	19,780	8,223	3,460	1,663	593	435	1,045	1,663