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Solar flares in July 2011
C-class56
M-class2
X-class0
LargestM9.32011-07-30
Sunspot number66.7NOAA SWPC
Flares per day (C and above)
M/X flares per day
Same month a year earlier
| Month | C | M | X | Largest |
|---|---|---|---|---|
| July 2010 | 10 | 0 | 0 | C3.6 |
| July 2011 | 56 | 2 | 0 | M9.3 |
Top 15 flares
| Date | Begin | Peak | Min | Class | Location | Region |
|---|---|---|---|---|---|---|
| 2011-07-30 | 02:04 | 02:09 | 8 | M9.3 | – | 11261 |
| 2011-07-27 | 15:48 | 16:07 | 34 | M1.1 | – | 11260 |
| 2011-07-29 | 16:34 | 16:40 | 12 | C6.3 | – | 11261 |
| 2011-07-28 | 12:03 | 12:12 | 21 | C5.3 | – | 11260 |
| 2011-07-28 | 02:19 | 02:25 | 10 | C5.2 | – | 11260 |
| 2011-07-28 | 14:43 | 15:27 | 62 | C4.1 | – | – |
| 2011-07-29 | 00:57 | 01:06 | 18 | C4.1 | – | 11260 |
| 2011-07-29 | 12:13 | 12:17 | 13 | C3.9 | – | 11261 |
| 2011-07-26 | 21:53 | 22:41 | 60 | C3.8 | – | 11260 |
| 2011-07-31 | 02:46 | 02:54 | 16 | C3.8 | – | 11261 |
| 2011-07-27 | 11:18 | 11:31 | 15 | C3.6 | – | 11260 |
| 2011-07-28 | 20:29 | 20:37 | 11 | C3.5 | – | 11260 |
| 2011-07-29 | 17:56 | 18:02 | 14 | C3.2 | – | 11261 |
| 2011-07-08 | 13:19 | 13:31 | 15 | C3.1 | – | 11247 |
| 2011-07-08 | 09:39 | 09:47 | 15 | C3.0 | – | 11247 |
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
58 flares of class C or larger in July 2011; by M/X count it ranks 398 of 565 months.