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Solar flares in September 1984
C-class4
M-class0
X-class0
LargestC8.51984-09-02
Flares per day (C and above)
Same month a year earlier
| Month | C | M | X | Largest |
|---|---|---|---|---|
| September 1983 | 44 | 2 | 0 | M2.0 |
| September 1984 | 4 | 0 | 0 | C8.5 |
Top 15 flares
| Date | Begin | Peak | Min | Class | Location | Region |
|---|---|---|---|---|---|---|
| 1984-09-02 | 10:10 | 10:12 | 53 | C8.5 | S07W33 | 4567 |
| 1984-09-08 | 23:50 | 23:59 | 14 | C2.2 | – | – |
| 1984-09-08 | 21:11 | 21:19 | 13 | C1.1 | – | – |
| 1984-09-01 | 08:10 | 08:10 | 20 | C1.0 | S07W19 | 4567 |
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
4 flares of class C or larger in September 1984; by M/X count it ranks 462 of 565 months.