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Solar flares in August 2013
C-class57
M-class3
X-class0
LargestM3.32013-08-17
Sunspot number90.2NOAA SWPC
Flares per day (C and above)
M/X flares per day
Same month a year earlier
| Month | C | M | X | Largest |
|---|---|---|---|---|
| August 2012 | 117 | 10 | 0 | M5.5 |
| August 2013 | 57 | 3 | 0 | M3.3 |
Top 15 flares
| Date | Begin | Peak | Min | Class | Location | Region |
|---|---|---|---|---|---|---|
| 2013-08-17 | 18:16 | 18:24 | 19 | M3.3 | S07W30 | 11818 |
| 2013-08-12 | 10:21 | 10:41 | 26 | M1.5 | S17E19 | 11817 |
| 2013-08-17 | 18:49 | 19:33 | 65 | M1.4 | S07W30 | 11818 |
| 2013-08-11 | 21:47 | 21:58 | 24 | C8.4 | S20E25 | 11817 |
| 2013-08-30 | 02:04 | 02:46 | 122 | C8.3 | N13E43 | 11836 |
| 2013-08-11 | 21:24 | 21:31 | 14 | C6.7 | S20E25 | 11817 |
| 2013-08-14 | 00:22 | 00:31 | 13 | C5.0 | – | – |
| 2013-08-13 | 18:46 | 18:50 | 6 | C4.6 | – | – |
| 2013-08-13 | 21:31 | 21:38 | 12 | C4.4 | – | – |
| 2013-08-22 | 04:49 | 05:06 | 26 | C4.1 | S18E09 | – |
| 2013-08-14 | 16:50 | 16:55 | 21 | C3.6 | S22W12 | 11817 |
| 2013-08-15 | 22:08 | 22:16 | 14 | C2.9 | S21W37 | 11816 |
| 2013-08-13 | 11:35 | 11:46 | 17 | C2.8 | – | – |
| 2013-08-16 | 13:11 | 13:18 | 11 | C2.6 | S06W12 | 11818 |
| 2013-08-31 | 17:20 | 17:36 | 31 | C2.6 | N12E30 | 11836 |
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
60 flares of class C or larger in August 2013; by M/X count it ranks 363 of 565 months.