Solar Flare WatchHome › Flare history › 1999
Solar flares in January 1999
C-class201
M-class10
X-class0
LargestM5.21999-01-20
Sunspot number94.3NOAA SWPC
Flares per day (C and above)
M/X flares per day
Same month a year earlier
| Month | C | M | X | Largest |
|---|---|---|---|---|
| January 1998 | 33 | 5 | 0 | M2.7 |
| January 1999 | 201 | 10 | 0 | M5.2 |
Top 15 flares
| Date | Begin | Peak | Min | Class | Location | Region |
|---|---|---|---|---|---|---|
| 1999-01-20 | 19:06 | 20:04 | 114 | M5.2 | – | – |
| 1999-01-16 | 12:02 | 12:07 | 8 | M3.6 | N21E36 | 8440 |
| 1999-01-14 | 10:07 | 10:20 | 26 | M3.0 | N18E64 | – |
| 1999-01-25 | 00:52 | 00:56 | 6 | M2.6 | N20W43 | – |
| 1999-01-18 | 07:52 | 08:04 | 31 | M2.0 | N19E11 | 8440 |
| 1999-01-14 | 18:55 | 19:03 | 19 | M1.4 | N18E57 | – |
| 1999-01-22 | 17:05 | 17:24 | 31 | M1.4 | N19W44 | – |
| 1999-01-15 | 06:32 | 07:21 | 70 | M1.3 | N20E53 | 8440 |
| 1999-01-16 | 19:50 | 19:56 | 12 | M1.2 | – | – |
| 1999-01-01 | 00:21 | 00:31 | 26 | M1.1 | – | – |
| 1999-01-15 | 14:36 | 14:44 | 14 | C9.8 | N20E47 | 8440 |
| 1999-01-03 | 08:07 | 08:54 | 111 | C8.2 | N16W70 | 8420 |
| 1999-01-06 | 23:54 | 00:06 | 49 | C8.0 | – | – |
| 1999-01-25 | 14:02 | 14:07 | 7 | C8.0 | N20W50 | – |
| 1999-01-26 | 18:36 | 18:44 | 18 | C7.9 | N19W70 | 8447 |
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.
← December 1998February 1999 →
About this page
211 flares of class C or larger in January 1999; by M/X count it ranks 238 of 565 months.