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Solar flares in December 2005
C-class27
M-class4
X-class0
LargestM7.82005-12-02
Sunspot number62.6NOAA SWPC
Flares per day (C and above)
M/X flares per day
Same month a year earlier
| Month | C | M | X | Largest |
|---|---|---|---|---|
| December 2004 | 40 | 7 | 0 | M4.2 |
| December 2005 | 27 | 4 | 0 | M7.8 |
Top 15 flares
| Date | Begin | Peak | Min | Class | Location | Region |
|---|---|---|---|---|---|---|
| 2005-12-02 | 10:05 | 10:12 | 20 | M7.8 | S03E14 | 10826 |
| 2005-12-02 | 02:42 | 02:52 | 18 | M6.5 | S03E19 | 10826 |
| 2005-12-02 | 20:57 | 21:19 | 40 | M2.0 | – | – |
| 2005-12-02 | 20:01 | 20:30 | 51 | M1.0 | S03E07 | 10826 |
| 2005-12-01 | 08:15 | 08:37 | 35 | C6.0 | S03E27 | 10826 |
| 2005-12-01 | 04:49 | 05:04 | 23 | C5.7 | S04E29 | 10826 |
| 2005-12-03 | 07:25 | 07:37 | 19 | C5.3 | N12E74 | 10830 |
| 2005-12-02 | 05:52 | 06:00 | 17 | C4.9 | S02E14 | 10826 |
| 2005-12-03 | 05:31 | 05:46 | 30 | C3.6 | S04W00 | 10826 |
| 2005-12-03 | 08:45 | 08:49 | 14 | C3.5 | S04W01 | 10826 |
| 2005-12-22 | 09:38 | 09:48 | 19 | C3.5 | N16E42 | 10838 |
| 2005-12-22 | 16:32 | 16:51 | 31 | C2.9 | N16E38 | 10838 |
| 2005-12-16 | 12:48 | 12:57 | 26 | C2.4 | S09W85 | 10836 |
| 2005-12-01 | 15:28 | 15:35 | 15 | C2.2 | S04E21 | 10826 |
| 2005-12-01 | 02:18 | 02:38 | 39 | C2.1 | S16W66 | 10824 |
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
31 flares of class C or larger in December 2005; by M/X count it ranks 331 of 565 months.