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Solar flares in December 2015
C-class94
M-class6
X-class0
LargestM4.72015-12-23
Sunspot number54.1NOAA SWPC
Flares per day (C and above)
M/X flares per day
Same month a year earlier
| Month | C | M | X | Largest |
|---|---|---|---|---|
| December 2014 | 199 | 17 | 1 | X1.8 |
| December 2015 | 94 | 6 | 0 | M4.7 |
Top 15 flares
| Date | Begin | Peak | Min | Class | Location | Region |
|---|---|---|---|---|---|---|
| 2015-12-23 | 00:23 | 00:40 | 29 | M4.7 | S22E63 | 12473 |
| 2015-12-21 | 00:52 | 01:03 | 19 | M2.8 | – | – |
| 2015-12-28 | 11:20 | 12:45 | 169 | M1.8 | – | – |
| 2015-12-22 | 03:15 | 03:34 | 33 | M1.7 | S23E75 | 12473 |
| 2015-12-21 | 10:09 | 10:19 | 23 | M1.1 | N04E85 | – |
| 2015-12-24 | 01:49 | 02:12 | 33 | M1.1 | – | – |
| 2015-12-21 | 05:29 | 05:39 | 14 | C9.1 | – | – |
| 2015-12-28 | 00:18 | 00:28 | 21 | C8.0 | S20W04 | 12473 |
| 2015-12-12 | 13:36 | 13:46 | 21 | C7.8 | – | – |
| 2015-12-26 | 05:01 | 05:10 | 22 | C7.8 | – | – |
| 2015-12-23 | 04:02 | 04:14 | 35 | C7.5 | N05E65 | 12472 |
| 2015-12-28 | 15:23 | 15:31 | 23 | C7.5 | – | – |
| 2015-12-25 | 16:59 | 17:29 | 50 | C6.9 | – | – |
| 2015-12-29 | 10:11 | 10:32 | 32 | C6.9 | S19W23 | 12473 |
| 2015-12-08 | 18:59 | 19:14 | 29 | C6.7 | – | – |
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
100 flares of class C or larger in December 2015; by M/X count it ranks 304 of 565 months.