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Solar flares in February 1985
C-class16
M-class0
X-class0
LargestC4.51985-02-18
Flares per day (C and above)
Same month a year earlier
| Month | C | M | X | Largest |
|---|---|---|---|---|
| February 1984 | 304 | 26 | 1 | X2.3 |
| February 1985 | 16 | 0 | 0 | C4.5 |
Top 15 flares
| Date | Begin | Peak | Min | Class | Location | Region |
|---|---|---|---|---|---|---|
| 1985-02-18 | 23:15 | 23:31 | 28 | C4.5 | – | – |
| 1985-02-18 | 23:15 | 23:30 | 28 | C4.4 | – | – |
| 1985-02-19 | 16:07 | 16:07 | 10 | C3.5 | N02E83 | 4629 |
| 1985-02-19 | 02:18 | 02:21 | 10 | C2.7 | – | 4629 |
| 1985-02-19 | 01:27 | 01:40 | 19 | C2.6 | – | 4629 |
| 1985-02-18 | 07:43 | 08:06 | 45 | C2.3 | – | – |
| 1985-02-19 | 18:11 | 18:18 | 25 | C2.0 | N02E83 | 4629 |
| 1985-02-19 | 15:03 | 15:09 | 9 | C1.9 | – | – |
| 1985-02-03 | 04:20 | 04:20 | 23 | C1.7 | S17W30 | 4620 |
| 1985-02-18 | 11:40 | 11:43 | 5 | C1.6 | – | – |
| 1985-02-18 | 15:49 | 16:00 | 25 | C1.4 | – | – |
| 1985-02-18 | 14:49 | 14:57 | 20 | C1.2 | – | – |
| 1985-02-20 | 21:27 | 21:32 | 8 | C1.2 | – | – |
| 1985-02-07 | 19:14 | 19:17 | 35 | C1.1 | S09E33 | 4623 |
| 1985-02-19 | 08:23 | 08:28 | 8 | C1.1 | – | – |
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
16 flares of class C or larger in February 1985; by M/X count it ranks 464 of 565 months.