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Solar flares in July 2017
C-class62
M-class4
X-class0
LargestM3.72017-07-14
Sunspot number14.6NOAA SWPC
Flares per day (C and above)
M/X flares per day
Same month a year earlier
| Month | C | M | X | Largest |
|---|---|---|---|---|
| July 2016 | 57 | 7 | 0 | M7.6 |
| July 2017 | 62 | 4 | 0 | M3.7 |
Top 15 flares
| Date | Begin | Peak | Min | Class | Location | Region |
|---|---|---|---|---|---|---|
| 2017-07-14 | 01:05 | 02:09 | 139 | M3.7 | – | – |
| 2017-07-09 | 03:09 | 03:18 | 28 | M2.1 | – | – |
| 2017-07-03 | 16:05 | 16:15 | 13 | M2.0 | – | – |
| 2017-07-13 | 20:01 | 20:05 | 10 | M1.2 | – | – |
| 2017-07-13 | 21:46 | 21:55 | 12 | C9.3 | – | – |
| 2017-07-15 | 19:20 | 19:36 | 24 | C9.0 | – | – |
| 2017-07-09 | 11:43 | 12:12 | 45 | C8.1 | – | – |
| 2017-07-09 | 08:55 | 09:12 | 22 | C6.3 | – | – |
| 2017-07-08 | 23:44 | 23:53 | 13 | C5.4 | – | – |
| 2017-07-14 | 07:27 | 07:33 | 8 | C4.7 | – | – |
| 2017-07-16 | 02:30 | 02:35 | 7 | C4.7 | – | – |
| 2017-07-13 | 23:26 | 23:40 | 18 | C4.6 | – | – |
| 2017-07-16 | 02:05 | 02:21 | – | C4.5 | – | – |
| 2017-07-16 | 01:52 | 02:02 | – | C4.3 | – | – |
| 2017-07-18 | 23:52 | 00:06 | 26 | C4.3 | – | – |
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
66 flares of class C or larger in July 2017; by M/X count it ranks 339 of 565 months.