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Solar flares in February 1981
C-class208
M-class38
X-class6
LargestX4.01981-02-26
Flares per day (C and above)
M/X flares per day
Same month a year earlier
| Month | C | M | X | Largest |
|---|---|---|---|---|
| February 1980 | 85 | 16 | 1 | X0.2 |
| February 1981 | 208 | 38 | 6 | X4.0 |
Top 15 flares
| Date | Begin | Peak | Min | Class | Location | Region |
|---|---|---|---|---|---|---|
| 1981-02-26 | 19:22 | 19:53 | 41 | X4.0 | S15E50 | 2958 |
| 1981-02-20 | 06:40 | 06:43 | 67 | X2.4 | N19W49 | 2941 |
| 1981-02-24 | 12:02 | 12:26 | 62 | X2.3 | – | 2954 |
| 1981-02-26 | 14:21 | 14:26 | 17 | X1.8 | S12E53 | 2958 |
| 1981-02-24 | 19:31 | 19:37 | 98 | X1.4 | S14E72 | 2958 |
| 1981-02-17 | 18:12 | 21:50 | 330 | X1.0 | N20W20 | 2941 |
| 1981-02-19 | 03:47 | 03:47 | 28 | M8.3 | S20E90 | 2953 |
| 1981-02-24 | 00:13 | 00:15 | 19 | M5.2 | S16E81 | 2958 |
| 1981-02-23 | 05:47 | 05:54 | 32 | M4.4 | – | – |
| 1981-02-08 | 03:28 | 03:30 | 22 | M3.7 | N13E42 | 2930 |
| 1981-02-07 | 18:30 | 18:35 | 26 | M3.5 | N13E48 | 2930 |
| 1981-02-25 | 02:38 | 02:45 | 35 | M2.9 | S16E78 | 2958 |
| 1981-02-26 | 18:45 | 20:00 | 315 | M2.4 | S18E35 | 2954 |
| 1981-02-07 | 13:41 | 13:44 | 5 | M2.3 | – | 2926 |
| 1981-02-08 | 01:32 | 01:40 | 30 | M2.3 | N13E44 | 2930 |
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
252 flares of class C or larger in February 1981; by M/X count it ranks 54 of 565 months.