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Solar flares in December 1987
C-class52
M-class2
X-class0
LargestM1.81987-12-26
Flares per day (C and above)
M/X flares per day
Same month a year earlier
| Month | C | M | X | Largest |
|---|---|---|---|---|
| December 1986 | 2 | 0 | 0 | C1.3 |
| December 1987 | 52 | 2 | 0 | M1.8 |
Top 15 flares
| Date | Begin | Peak | Min | Class | Location | Region |
|---|---|---|---|---|---|---|
| 1987-12-26 | 18:04 | 18:05 | 23 | M1.8 | S33E66 | 4912 |
| 1987-12-26 | 19:40 | 20:16 | 102 | M1.1 | S34E62 | 4912 |
| 1987-12-14 | 04:20 | 04:25 | 7 | C9.7 | – | 4906 |
| 1987-12-27 | 10:27 | 10:46 | 36 | C9.1 | – | – |
| 1987-12-28 | 06:05 | 06:10 | 28 | C7.3 | S34E51 | 4912 |
| 1987-12-27 | 07:14 | 07:19 | 18 | C5.5 | S34E62 | 4912 |
| 1987-12-12 | 16:33 | 16:41 | 62 | C5.3 | S29E90 | 4906 |
| 1987-12-12 | 22:39 | 22:57 | 27 | C4.6 | – | – |
| 1987-12-26 | 01:52 | 02:16 | 44 | C4.6 | S34E76 | 4912 |
| 1987-12-27 | 21:29 | 21:34 | 47 | C4.4 | S33E55 | 4912 |
| 1987-12-30 | 01:42 | 01:49 | 38 | C4.1 | S36E32 | 4912 |
| 1987-12-06 | 05:50 | 05:52 | 19 | C3.7 | S22E01 | 4901 |
| 1987-12-27 | 17:56 | 17:57 | 31 | C3.1 | S33E61 | 4912 |
| 1987-12-25 | 19:03 | 19:03 | 34 | C2.5 | S32E69 | 4912 |
| 1987-12-27 | 10:11 | 10:18 | 13 | C2.5 | – | – |
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
54 flares of class C or larger in December 1987; by M/X count it ranks 389 of 565 months.