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Solar flares in May 2019
C-class16
M-class3
X-class0
LargestM1.52019-05-06
Sunspot number10.0NOAA SWPC
Flares per day (C and above)
M/X flares per day
Same month a year earlier
| Month | C | M | X | Largest |
|---|---|---|---|---|
| May 2018 | 7 | 0 | 0 | C5.1 |
| May 2019 | 16 | 3 | 0 | M1.5 |
Top 15 flares
| Date | Begin | Peak | Min | Class | Location | Region |
|---|---|---|---|---|---|---|
| 2019-05-06 | 05:04 | 05:09 | 8 | M1.5 | – | – |
| 2019-05-06 | 13:31 | 13:54 | 26 | M1.1 | – | – |
| 2019-05-09 | 05:37 | 05:51 | 19 | M1.0 | – | – |
| 2019-05-04 | 22:26 | 22:43 | 31 | C3.1 | – | – |
| 2019-05-06 | 08:30 | 08:47 | 22 | C3.0 | – | – |
| 2019-05-15 | 19:14 | 19:24 | 13 | C3.0 | – | – |
| 2019-05-06 | 07:18 | 07:41 | 36 | C2.6 | – | – |
| 2019-05-06 | 09:55 | 10:02 | 10 | C2.2 | – | – |
| 2019-05-07 | 11:51 | 11:56 | 7 | C2.0 | – | – |
| 2019-05-07 | 10:24 | 10:36 | – | C1.7 | – | – |
| 2019-05-07 | 10:42 | 10:48 | 8 | C1.7 | – | – |
| 2019-05-06 | 17:45 | 17:49 | 7 | C1.5 | – | – |
| 2019-05-06 | 19:41 | 19:50 | 11 | C1.5 | – | – |
| 2019-05-03 | 23:20 | 23:32 | 20 | C1.4 | – | – |
| 2019-05-05 | 13:33 | 13:42 | 12 | C1.4 | – | – |
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
19 flares of class C or larger in May 2019; by M/X count it ranks 367 of 565 months.