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Solar flares in December 1988
C-class208
M-class45
X-class4
LargestX4.71988-12-16
Flares per day (C and above)
M/X flares per day
Same month a year earlier
| Month | C | M | X | Largest |
|---|---|---|---|---|
| December 1987 | 52 | 2 | 0 | M1.8 |
| December 1988 | 208 | 45 | 4 | X4.7 |
Top 15 flares
| Date | Begin | Peak | Min | Class | Location | Region |
|---|---|---|---|---|---|---|
| 1988-12-16 | 08:38 | 08:41 | 12 | X4.7 | N26E37 | 5278 |
| 1988-12-30 | 17:25 | 18:16 | 143 | X1.4 | S19W30 | 5292 |
| 1988-12-15 | 04:46 | 05:05 | 83 | X1.1 | N27E59 | 5278 |
| 1988-12-18 | 16:51 | 17:14 | 114 | X1.1 | S31W40 | 5273 |
| 1988-12-20 | 12:18 | 12:44 | 194 | M7.3 | – | – |
| 1988-12-26 | 20:18 | 20:42 | 56 | M6.1 | S20E20 | 5292 |
| 1988-12-22 | 23:07 | 23:10 | 139 | M5.3 | N26W41 | 5280 |
| 1988-12-09 | 07:32 | 07:35 | 19 | M3.8 | N20E13 | 5265 |
| 1988-12-28 | 23:42 | 23:43 | 16 | M3.6 | N21W58 | 5285 |
| 1988-12-17 | 04:58 | 05:00 | 55 | M3.2 | N28E30 | 5278 |
| 1988-12-24 | 02:01 | 02:07 | 24 | M2.9 | – | – |
| 1988-12-17 | 03:44 | 03:46 | 22 | M2.8 | S32W23 | 5273 |
| 1988-12-17 | 05:40 | 05:43 | 20 | M2.7 | N27E31 | 5278 |
| 1988-12-09 | 21:17 | 21:20 | 8 | M2.6 | N21E09 | 5265 |
| 1988-12-09 | 03:16 | 03:17 | 17 | M2.2 | N21E20 | 5265 |
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
257 flares of class C or larger in December 1988; by M/X count it ranks 42 of 565 months.