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Solar flares in November 2021
C-class17
M-class4
X-class0
LargestM2.02021-11-09
Sunspot number36.0NOAA SWPC
Flares per day (C and above)
M/X flares per day
Same month a year earlier
| Month | C | M | X | Largest |
|---|---|---|---|---|
| November 2020 | 52 | 1 | 0 | M4.4 |
| November 2021 | 17 | 4 | 0 | M2.0 |
Top 15 flares
| Date | Begin | Peak | Min | Class | Location | Region |
|---|---|---|---|---|---|---|
| 2021-11-09 | 15:48 | 17:02 | 108 | M2.0 | – | – |
| 2021-11-02 | 02:57 | 03:01 | 7 | M1.7 | – | – |
| 2021-11-02 | 02:03 | 02:51 | – | M1.6 | – | – |
| 2021-11-01 | 00:57 | 01:45 | 72 | M1.5 | – | – |
| 2021-11-03 | 20:57 | 21:17 | 42 | C5.2 | – | – |
| 2021-11-01 | 23:36 | 23:40 | 6 | C4.5 | – | – |
| 2021-11-01 | 21:51 | 21:58 | 10 | C4.4 | – | – |
| 2021-11-01 | 21:05 | 21:33 | – | C4.0 | – | – |
| 2021-11-04 | 10:34 | 10:55 | 34 | C3.5 | – | – |
| 2021-11-04 | 14:42 | 14:53 | 20 | C2.9 | – | – |
| 2021-11-05 | 21:36 | 21:57 | 39 | C2.3 | – | – |
| 2021-11-01 | 20:35 | 20:44 | 11 | C2.1 | – | – |
| 2021-11-02 | 07:37 | 07:40 | 6 | C2.0 | – | – |
| 2021-11-06 | 12:29 | 12:39 | 14 | C1.7 | – | – |
| 2021-11-05 | 15:27 | 15:30 | 5 | C1.6 | – | – |
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
21 flares of class C or larger in November 2021; by M/X count it ranks 342 of 565 months.