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Solar flares in April 2013
C-class168
M-class4
X-class0
LargestM6.52013-04-11
Sunspot number112.8NOAA SWPC
Flares per day (C and above)
M/X flares per day
Same month a year earlier
| Month | C | M | X | Largest |
|---|---|---|---|---|
| April 2012 | 79 | 2 | 0 | M1.7 |
| April 2013 | 168 | 4 | 0 | M6.5 |
Top 15 flares
| Date | Begin | Peak | Min | Class | Location | Region |
|---|---|---|---|---|---|---|
| 2013-04-11 | 06:55 | 07:16 | 34 | M6.5 | N09E12 | 11719 |
| 2013-04-12 | 19:52 | 20:38 | 54 | M3.3 | – | – |
| 2013-04-05 | 17:34 | 17:48 | 30 | M2.2 | – | – |
| 2013-04-22 | 10:22 | 10:29 | 9 | M1.0 | – | – |
| 2013-04-23 | 14:05 | 14:14 | 11 | C8.2 | N15W39 | 11726 |
| 2013-04-26 | 06:20 | 06:27 | 11 | C7.0 | N09W88 | 11726 |
| 2013-04-18 | 17:56 | 18:23 | 68 | C6.5 | – | – |
| 2013-04-11 | 10:28 | 10:46 | 48 | C6.2 | – | – |
| 2013-04-29 | 20:22 | 20:32 | 22 | C5.9 | – | – |
| 2013-04-25 | 19:34 | 19:40 | 9 | C5.8 | – | – |
| 2013-04-25 | 21:55 | 22:02 | 11 | C5.7 | N14W76 | 11726 |
| 2013-04-26 | 22:09 | 22:25 | 25 | C5.7 | N11W87 | 11726 |
| 2013-04-25 | 17:24 | 17:28 | 8 | C5.6 | – | – |
| 2013-04-27 | 02:45 | 02:52 | 15 | C5.2 | – | – |
| 2013-04-21 | 18:35 | 18:39 | 7 | C4.5 | N13W20 | 11726 |
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
172 flares of class C or larger in April 2013; by M/X count it ranks 334 of 565 months.