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Solar flares in March 2015
C-class186
M-class26
X-class1
LargestX2.22015-03-11
Sunspot number61.7NOAA SWPC
Flares per day (C and above)
M/X flares per day
Same month a year earlier
| Month | C | M | X | Largest |
|---|---|---|---|---|
| March 2014 | 197 | 21 | 1 | X1.0 |
| March 2015 | 186 | 26 | 1 | X2.2 |
Top 15 flares
| Date | Begin | Peak | Min | Class | Location | Region |
|---|---|---|---|---|---|---|
| 2015-03-11 | 16:11 | 16:22 | 18 | X2.2 | S17E21 | 12297 |
| 2015-03-07 | 21:59 | 22:22 | 50 | M9.2 | – | – |
| 2015-03-03 | 01:25 | 01:35 | 17 | M8.2 | N21W87 | 12290 |
| 2015-03-09 | 23:29 | 23:53 | 43 | M5.8 | – | – |
| 2015-03-10 | 03:19 | 03:24 | 9 | M5.1 | S15E40 | 12297 |
| 2015-03-09 | 14:22 | 14:33 | 15 | M4.5 | S16E49 | 12297 |
| 2015-03-12 | 13:50 | 14:08 | 23 | M4.2 | S15E06 | 12297 |
| 2015-03-02 | 19:21 | 19:31 | 15 | M4.1 | – | – |
| 2015-03-02 | 15:10 | 15:28 | 27 | M3.7 | – | – |
| 2015-03-12 | 04:41 | 04:46 | 9 | M3.2 | – | – |
| 2015-03-06 | 04:14 | 04:57 | 73 | M3.1 | – | – |
| 2015-03-10 | 23:46 | 00:02 | 20 | M2.9 | – | – |
| 2015-03-12 | 21:44 | 21:51 | 12 | M2.7 | – | – |
| 2015-03-11 | 07:51 | 07:57 | 12 | M2.6 | S16E26 | 12297 |
| 2015-03-11 | 07:10 | 07:18 | 33 | M1.8 | S16E26 | 12297 |
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
213 flares of class C or larger in March 2015; by M/X count it ranks 118 of 565 months.