Solar Flare WatchHome › Flare history › 2003
Solar flares in July 2003
C-class187
M-class7
X-class0
LargestM3.62003-07-10
Sunspot number132.8NOAA SWPC
Flares per day (C and above)
M/X flares per day
Same month a year earlier
| Month | C | M | X | Largest |
|---|---|---|---|---|
| July 2002 | 225 | 30 | 5 | X4.8 |
| July 2003 | 187 | 7 | 0 | M3.6 |
Top 15 flares
| Date | Begin | Peak | Min | Class | Location | Region |
|---|---|---|---|---|---|---|
| 2003-07-10 | 13:54 | 14:12 | 29 | M3.6 | – | 10397 |
| 2003-07-02 | 07:06 | 07:28 | 40 | M3.0 | N13E25 | 10397 |
| 2003-07-30 | 04:04 | 04:10 | 8 | M2.5 | N14W55 | 10422 |
| 2003-07-06 | 00:06 | 00:32 | 34 | M2.3 | N04E18 | 10400 |
| 2003-07-09 | 21:59 | 22:38 | 46 | M2.0 | – | 10397 |
| 2003-07-12 | 18:57 | 19:06 | 16 | M1.4 | N16E79 | – |
| 2003-07-29 | 01:28 | 01:39 | 15 | M1.3 | S13E72 | 10421 |
| 2003-07-17 | 08:17 | 08:23 | 12 | C9.8 | N15E21 | 10412 |
| 2003-07-14 | 00:58 | 01:20 | 36 | C8.7 | – | 10409 |
| 2003-07-04 | 14:35 | 14:55 | 45 | C7.1 | N05E32 | 10400 |
| 2003-07-09 | 16:24 | 16:37 | 27 | C5.8 | N12W82 | 10397 |
| 2003-07-20 | 16:01 | 16:08 | 18 | C5.6 | S11W22 | 10410 |
| 2003-07-02 | 22:06 | 22:22 | 34 | C5.4 | – | 10400 |
| 2003-07-09 | 20:42 | 20:50 | 11 | C5.4 | – | 10397 |
| 2003-07-18 | 00:02 | 00:05 | 8 | C5.4 | S10E15 | 10410 |
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.
About this page
194 flares of class C or larger in July 2003; by M/X count it ranks 280 of 565 months.