Solar Flare WatchHome › Flare history › 1981
Solar flares in March 1981
C-class240
M-class39
X-class1
LargestX2.21981-03-25
Flares per day (C and above)
M/X flares per day
Same month a year earlier
| Month | C | M | X | Largest |
|---|---|---|---|---|
| March 1980 | 99 | 6 | 0 | M0.5 |
| March 1981 | 240 | 39 | 1 | X2.2 |
Top 15 flares
| Date | Begin | Peak | Min | Class | Location | Region |
|---|---|---|---|---|---|---|
| 1981-03-25 | 20:39 | 20:48 | 44 | X2.2 | N09W89 | 2984 |
| 1981-03-22 | 23:41 | 23:53 | 52 | M8.9 | N08W47 | 2984 |
| 1981-03-23 | 06:53 | 06:58 | 33 | M8.5 | N10W54 | 2984 |
| 1981-03-15 | 09:00 | 09:17 | 78 | M3.8 | – | – |
| 1981-03-30 | 00:49 | 00:49 | 99 | M3.5 | N13W74 | 2993 |
| 1981-03-21 | 16:06 | 16:14 | 12 | M3.0 | – | – |
| 1981-03-23 | 12:01 | 12:09 | 14 | M3.0 | – | – |
| 1981-03-21 | 12:55 | 13:01 | 16 | M2.5 | – | – |
| 1981-03-24 | 01:55 | 01:58 | 35 | M2.4 | N08W58 | 2984 |
| 1981-03-13 | 23:08 | 23:30 | 43 | M2.2 | – | 2971 |
| 1981-03-05 | 21:05 | 21:28 | 38 | M2.1 | N04E18 | 2962 |
| 1981-03-23 | 10:11 | 10:21 | 20 | M2.1 | – | – |
| 1981-03-02 | 22:30 | 22:35 | 17 | M2.0 | S14W35 | 2954 |
| 1981-03-03 | 06:10 | 07:47 | 150 | M2.0 | – | 2954 |
| 1981-03-07 | 06:22 | 06:29 | 68 | M2.0 | S21W78 | 2954 |
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
280 flares of class C or larger in March 1981; by M/X count it ranks 65 of 565 months.