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Solar flares in March 1990
C-class231
M-class28
X-class1
LargestX1.51990-03-19
Flares per day (C and above)
M/X flares per day
Same month a year earlier
| Month | C | M | X | Largest |
|---|---|---|---|---|
| March 1989 | 179 | 88 | 12 | X15.0 |
| March 1990 | 231 | 28 | 1 | X1.5 |
Top 15 flares
| Date | Begin | Peak | Min | Class | Location | Region |
|---|---|---|---|---|---|---|
| 1990-03-19 | 04:39 | 05:08 | 101 | X1.5 | N31W43 | 5969 |
| 1990-03-19 | 13:50 | 13:54 | 13 | M4.2 | S14E69 | 5987 |
| 1990-03-28 | 07:31 | 07:45 | 137 | M4.2 | S04W37 | 5988 |
| 1990-03-26 | 03:41 | 03:43 | 26 | M3.5 | S13W30 | 5984 |
| 1990-03-18 | 11:15 | 11:30 | 65 | M3.2 | S35E31 | 5974 |
| 1990-03-25 | 19:32 | 19:53 | 73 | M2.7 | S12W29 | 5984 |
| 1990-03-26 | 04:09 | 05:06 | 133 | M2.6 | S13W35 | 5984 |
| 1990-03-26 | 05:29 | 05:35 | 11 | M2.3 | – | – |
| 1990-03-20 | 20:25 | 20:26 | 25 | M2.1 | S34W03 | 5974 |
| 1990-03-01 | 03:39 | 03:40 | 51 | M1.9 | N30E39 | 5961 |
| 1990-03-01 | 05:33 | 05:37 | 19 | M1.8 | N31E34 | 5961 |
| 1990-03-20 | 23:02 | 23:10 | 39 | M1.8 | S33W05 | 5974 |
| 1990-03-30 | 19:22 | 19:27 | 8 | M1.8 | – | – |
| 1990-03-01 | 03:56 | 04:09 | 57 | M1.7 | S19W45 | 5947 |
| 1990-03-24 | 02:54 | 02:55 | 15 | M1.5 | S35E01 | 5983 |
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
260 flares of class C or larger in March 1990; by M/X count it ranks 106 of 565 months.