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Solar flares in December 2013
C-class166
M-class12
X-class0
LargestM6.42013-12-31
Sunspot number118.3NOAA SWPC
Flares per day (C and above)
M/X flares per day
Same month a year earlier
| Month | C | M | X | Largest |
|---|---|---|---|---|
| December 2012 | 45 | 0 | 0 | C5.7 |
| December 2013 | 166 | 12 | 0 | M6.4 |
Top 15 flares
| Date | Begin | Peak | Min | Class | Location | Region |
|---|---|---|---|---|---|---|
| 2013-12-31 | 21:45 | 21:58 | 35 | M6.4 | S16W35 | 11936 |
| 2013-12-19 | 23:06 | 23:19 | 20 | M3.5 | – | – |
| 2013-12-22 | 15:06 | 15:12 | 13 | M3.3 | S19W56 | 11928 |
| 2013-12-29 | 07:49 | 07:56 | 11 | M3.1 | S17W00 | 11936 |
| 2013-12-22 | 08:05 | 08:11 | 13 | M1.9 | S17W51 | 11928 |
| 2013-12-20 | 11:35 | 11:57 | 32 | M1.6 | – | – |
| 2013-12-22 | 14:24 | 14:38 | 24 | M1.6 | S19W56 | 11928 |
| 2013-12-22 | 21:23 | 22:08 | 50 | M1.6 | S17W59 | 11928 |
| 2013-12-23 | 08:59 | 09:06 | 10 | M1.6 | S18W64 | 11928 |
| 2013-12-22 | 23:44 | 00:03 | 21 | M1.3 | – | – |
| 2013-12-07 | 07:17 | 07:29 | 32 | M1.2 | S16W49 | 11909 |
| 2013-12-22 | 08:33 | 08:37 | 8 | M1.1 | S17W52 | 11928 |
| 2013-12-28 | 17:53 | 18:02 | 15 | C9.3 | S18E07 | 11936 |
| 2013-12-21 | 10:27 | 10:36 | 17 | C9.2 | S18W41 | 11928 |
| 2013-12-22 | 18:55 | 19:09 | 22 | C8.8 | S17W59 | 11928 |
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
178 flares of class C or larger in December 2013; by M/X count it ranks 220 of 565 months.