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Solar flares in June 2017
C-class17
M-class0
X-class0
LargestC8.02017-06-02
Sunspot number18.0NOAA SWPC
Flares per day (C and above)
Same month a year earlier
| Month | C | M | X | Largest |
|---|---|---|---|---|
| June 2016 | 6 | 0 | 0 | C6.5 |
| June 2017 | 17 | 0 | 0 | C8.0 |
Top 15 flares
| Date | Begin | Peak | Min | Class | Location | Region |
|---|---|---|---|---|---|---|
| 2017-06-02 | 17:50 | 17:57 | 11 | C8.0 | N05E62 | 12661 |
| 2017-06-01 | 01:12 | 01:43 | 41 | C6.6 | – | – |
| 2017-06-01 | 21:31 | 22:59 | 111 | C3.0 | – | – |
| 2017-06-05 | 05:14 | 05:31 | 27 | C2.7 | N06E30 | 12661 |
| 2017-06-01 | 09:22 | 09:25 | 7 | C2.5 | N07E81 | 12661 |
| 2017-06-03 | 14:47 | 14:56 | 13 | C2.5 | – | – |
| 2017-06-03 | 19:21 | 19:34 | 20 | C2.5 | – | – |
| 2017-06-03 | 09:37 | 09:57 | 28 | C2.1 | – | – |
| 2017-06-01 | 06:53 | 07:53 | 76 | C1.4 | N07E79 | 12661 |
| 2017-06-01 | 17:56 | 18:09 | 37 | C1.4 | – | – |
| 2017-06-07 | 02:12 | 03:33 | 104 | C1.3 | – | – |
| 2017-06-02 | 12:15 | 12:23 | 14 | C1.2 | – | – |
| 2017-06-05 | 09:36 | 09:55 | 29 | C1.2 | N16W75 | – |
| 2017-06-07 | 10:03 | 10:22 | 47 | C1.2 | – | – |
| 2017-06-01 | 20:22 | 20:28 | 10 | C1.1 | – | – |
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
17 flares of class C or larger in June 2017; by M/X count it ranks 545 of 565 months.