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Solar flares in April 2023
C-class224
M-class8
X-class0
LargestM3.02023-04-06
Sunspot number93.7NOAA SWPC
Flares per day (C and above)
M/X flares per day
Same month a year earlier
| Month | C | M | X | Largest |
|---|---|---|---|---|
| April 2022 | 193 | 29 | 3 | X2.2 |
| April 2023 | 224 | 8 | 0 | M3.0 |
Top 15 flares
| Date | Begin | Peak | Min | Class | Location | Region |
|---|---|---|---|---|---|---|
| 2023-04-06 | 05:36 | 05:53 | 27 | M3.0 | – | – |
| 2023-04-08 | 01:38 | 01:46 | 11 | M2.9 | – | – |
| 2023-04-30 | 19:56 | 20:28 | 46 | M2.4 | – | – |
| 2023-04-27 | 11:04 | 11:14 | 18 | M1.8 | – | – |
| 2023-04-21 | 17:44 | 18:12 | 59 | M1.7 | – | – |
| 2023-04-14 | 23:18 | 23:27 | 12 | M1.5 | – | – |
| 2023-04-11 | 09:51 | 10:16 | 31 | M1.3 | – | – |
| 2023-04-14 | 16:10 | 16:18 | 14 | M1.1 | – | – |
| 2023-04-09 | 05:51 | 06:08 | 32 | C9.0 | – | – |
| 2023-04-16 | 17:31 | 17:44 | 28 | C9.0 | – | – |
| 2023-04-29 | 10:00 | 10:17 | 31 | C8.8 | – | – |
| 2023-04-13 | 10:32 | 10:43 | – | C8.4 | – | – |
| 2023-04-30 | 08:35 | 08:49 | 29 | C7.4 | – | – |
| 2023-04-15 | 09:05 | 09:14 | 12 | C7.1 | – | – |
| 2023-04-28 | 21:10 | 21:45 | 64 | C7.1 | – | – |
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
232 flares of class C or larger in April 2023; by M/X count it ranks 274 of 565 months.