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Solar flares in March 2013
C-class49
M-class3
X-class0
LargestM1.62013-03-21
Sunspot number81.1NOAA SWPC
Flares per day (C and above)
M/X flares per day
Same month a year earlier
| Month | C | M | X | Largest |
|---|---|---|---|---|
| March 2012 | 88 | 19 | 3 | X5.4 |
| March 2013 | 49 | 3 | 0 | M1.6 |
Top 15 flares
| Date | Begin | Peak | Min | Class | Location | Region |
|---|---|---|---|---|---|---|
| 2013-03-21 | 21:42 | 22:04 | 54 | M1.6 | – | – |
| 2013-03-05 | 07:47 | 07:54 | 12 | M1.2 | S15W54 | 11686 |
| 2013-03-15 | 05:46 | 06:58 | 169 | M1.1 | N07E07 | 11692 |
| 2013-03-20 | 00:39 | 01:02 | 46 | C5.5 | – | – |
| 2013-03-19 | 00:51 | 01:17 | 45 | C4.3 | – | – |
| 2013-03-12 | 22:42 | 22:46 | 7 | C3.6 | S21W41 | 11689 |
| 2013-03-21 | 18:10 | 18:22 | 18 | C3.5 | – | – |
| 2013-03-22 | 02:33 | 02:38 | 12 | C2.9 | – | – |
| 2013-03-16 | 04:52 | 05:39 | 93 | C2.8 | S19W50 | 11698 |
| 2013-03-18 | 03:15 | 03:21 | 10 | C2.8 | – | – |
| 2013-03-16 | 04:20 | 04:28 | 12 | C2.6 | S20W48 | 11698 |
| 2013-03-15 | 10:39 | 10:44 | 7 | C2.2 | – | – |
| 2013-03-14 | 05:45 | 05:54 | 17 | C2.1 | N13W27 | 11691 |
| 2013-03-18 | 06:27 | 06:32 | 14 | C2.1 | – | – |
| 2013-03-12 | 10:17 | 11:07 | 128 | C2.0 | N25E01 | 11690 |
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
52 flares of class C or larger in March 2013; by M/X count it ranks 362 of 565 months.