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Solar flares in March 2021
C-class2
M-class0
X-class0
LargestC1.62021-03-09
Sunspot number17.0NOAA SWPC
Flares per day (C and above)
Top 15 flares
| Date | Begin | Peak | Min | Class | Location | Region |
|---|---|---|---|---|---|---|
| 2021-03-09 | 12:14 | 12:35 | 27 | C1.6 | – | – |
| 2021-03-02 | 23:53 | 00:03 | 12 | C1.2 | – | – |
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
2 flares of class C or larger in March 2021; by M/X count it ranks 564 of 565 months.