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Solar flares in December 2014
C-class199
M-class17
X-class1
LargestX1.82014-12-20
Sunspot number120.0NOAA SWPC
Flares per day (C and above)
M/X flares per day
Same month a year earlier
| Month | C | M | X | Largest |
|---|---|---|---|---|
| December 2013 | 166 | 12 | 0 | M6.4 |
| December 2014 | 199 | 17 | 1 | X1.8 |
Top 15 flares
| Date | Begin | Peak | Min | Class | Location | Region |
|---|---|---|---|---|---|---|
| 2014-12-20 | 00:11 | 00:28 | 44 | X1.8 | S21W24 | 12242 |
| 2014-12-17 | 04:25 | 04:51 | 55 | M8.7 | S11E33 | 12241 |
| 2014-12-18 | 21:41 | 21:58 | 44 | M6.9 | S11E15 | 12241 |
| 2014-12-04 | 18:05 | 18:25 | 51 | M6.1 | – | – |
| 2014-12-27 | 02:03 | 02:16 | 21 | M2.2 | S11W48 | 12249 |
| 2014-12-01 | 06:26 | 06:41 | 33 | M1.8 | S21E17 | 12222 |
| 2014-12-14 | 19:25 | 19:33 | 14 | M1.6 | S19E44 | 12242 |
| 2014-12-05 | 11:33 | 12:25 | 74 | M1.5 | – | – |
| 2014-12-13 | 05:13 | 05:20 | 12 | M1.5 | – | – |
| 2014-12-17 | 00:57 | 01:10 | 23 | M1.5 | S11E36 | 12241 |
| 2014-12-17 | 18:54 | 19:01 | 26 | M1.4 | S10E24 | 12241 |
| 2014-12-04 | 08:00 | 08:10 | 21 | M1.3 | S24W27 | 12222 |
| 2014-12-04 | 19:38 | 19:41 | 6 | M1.3 | – | – |
| 2014-12-19 | 09:31 | 09:44 | 23 | M1.3 | S20W45 | 12235 |
| 2014-12-21 | 07:18 | 07:32 | 33 | M1.2 | S21W48 | 12242 |
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
217 flares of class C or larger in December 2014; by M/X count it ranks 172 of 565 months.