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Solar flares in October 2003
C-class106
M-class37
X-class7
LargestX17.22003-10-28
Sunspot number118.9NOAA SWPC
Flares per day (C and above)
M/X flares per day
Same month a year earlier
| Month | C | M | X | Largest |
|---|---|---|---|---|
| October 2002 | 220 | 22 | 1 | X1.2 |
| October 2003 | 106 | 37 | 7 | X17.2 |
Top 15 flares
| Date | Begin | Peak | Min | Class | Location | Region |
|---|---|---|---|---|---|---|
| 2003-10-28 | 09:51 | 11:10 | 93 | X17.2 | S16E08 | 10486 |
| 2003-10-29 | 20:37 | 20:49 | 24 | X10.0 | S15W02 | 10486 |
| 2003-10-23 | 08:19 | 08:35 | 30 | X5.4 | S21E88 | 10486 |
| 2003-10-26 | 05:57 | 06:54 | 96 | X1.2 | S15E44 | 10486 |
| 2003-10-26 | 17:21 | 18:19 | 120 | X1.2 | N02W38 | 10484 |
| 2003-10-19 | 16:29 | 16:50 | 35 | X1.1 | N08E58 | 10484 |
| 2003-10-23 | 19:50 | 20:04 | 24 | X1.1 | S17E84 | 10486 |
| 2003-10-22 | 19:47 | 20:07 | 41 | M9.9 | – | 10486 |
| 2003-10-24 | 02:27 | 02:54 | 47 | M7.6 | S19E72 | 10486 |
| 2003-10-26 | 21:34 | 21:40 | 14 | M7.6 | N01W38 | 10484 |
| 2003-10-27 | 12:27 | 12:43 | 25 | M6.7 | S17E25 | 10486 |
| 2003-10-27 | 09:21 | 09:27 | 11 | M5.0 | S16E26 | 10486 |
| 2003-10-24 | 05:04 | 05:10 | 12 | M4.2 | S24E74 | 10486 |
| 2003-10-22 | 03:28 | 03:51 | 113 | M3.7 | N07E25 | 10486 |
| 2003-10-29 | 04:08 | 05:11 | 106 | M3.5 | – | 10486 |
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.
← September 2003November 2003 →
About this page
150 flares of class C or larger in October 2003; by M/X count it ranks 55 of 565 months.