Days with the most M/X flares, top 50

Date	M	X	Largest
2024-05-08	15	3	X1.0
1982-06-04	8	3	X5.9
1982-06-15	5	3	X3.0
2005-09-09	5	3	X6.2
1978-12-12	4	3	X0.2
1991-03-05	4	3	X2.0
2001-04-02	4	3	X20.0
2024-05-14	2	3	X8.6
1988-06-24	1	3	X5.6
2004-07-16	1	3	X3.6
2000-11-24	0	3	X2.3
2026-02-01	17	2	X8.1
2026-02-02	15	2	X2.8
2024-05-09	14	2	X2.2
1980-11-06	13	2	X9.0
1981-07-26	12	2	X3.5
1992-09-06	10	2	X1.7
1982-07-09	9	2	X9.8
1991-03-07	9	2	X5.5
2024-05-05	9	2	X1.3
1989-03-11	7	2	X1.3
2001-10-19	6	2	X1.6
2005-01-15	6	2	X2.6
1978-07-11	5	2	X1.5
1989-03-16	5	2	X3.6
2013-10-25	5	2	X2.1
2024-05-11	5	2	X5.8
2024-08-05	5	2	X1.7
1981-04-18	4	2	X1.3
1989-01-14	4	2	X2.1
1981-02-24	3	2	X2.3
1981-04-10	3	2	X2.5
1982-12-15	3	2	X12.9
1989-09-09	3	2	X1.4
2003-10-23	3	2	X5.4
2005-09-10	3	2	X2.1
2017-09-06	3	2	X14.6
2017-09-07	3	2	X2.1
2025-01-03	3	2	X1.2
2026-04-24	3	2	X2.5
1981-02-26	2	2	X4.0
1982-06-26	2	2	X2.1
1984-04-24	2	2	X13.0
1988-10-03	2	2	X3.2
1991-03-13	2	2	X3.9
1991-10-27	2	2	X6.1
1998-11-22	2	2	X3.7
2000-06-06	2	2	X2.3
2003-10-26	2	2	X1.2
2024-05-15	2	2	X3.4

All times UTC. Until June 2017 classes are NOAA's reports of the time (GOES-15 and earlier included a 0.7 scaling factor); later classes come from calibrated GOES-16/18 data, so the same flare reads about 1.4× larger. Do not compare the two periods directly.