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Solar flares in February 1983
C-class139
M-class4
X-class1
LargestX4.11983-02-03
Flares per day (C and above)
M/X flares per day
Same month a year earlier
| Month | C | M | X | Largest |
|---|---|---|---|---|
| February 1982 | 394 | 72 | 5 | X2.6 |
| February 1983 | 139 | 4 | 1 | X4.1 |
Top 15 flares
| Date | Begin | Peak | Min | Class | Location | Region |
|---|---|---|---|---|---|---|
| 1983-02-03 | 05:43 | 06:19 | 179 | X4.1 | S19W08 | 4077 |
| 1983-02-22 | 19:20 | 19:36 | 35 | M4.2 | – | – |
| 1983-02-06 | 10:14 | 10:17 | 5 | M2.7 | – | – |
| 1983-02-05 | 09:28 | 09:33 | 49 | M1.7 | S19W35 | 4077 |
| 1983-02-05 | 13:03 | 13:37 | 55 | M1.2 | S21W38 | 4077 |
| 1983-02-05 | 17:46 | 17:52 | 12 | C9.2 | S18E05 | 4079 |
| 1983-02-08 | 21:50 | 21:53 | 130 | C7.5 | – | 4077 |
| 1983-02-09 | 00:01 | 00:01 | 102 | C6.7 | – | 4077 |
| 1983-02-05 | 06:49 | 07:01 | 86 | C6.4 | S19W36 | 4077 |
| 1983-02-03 | 18:26 | 18:32 | 17 | C5.7 | – | – |
| 1983-02-01 | 06:48 | 07:37 | 88 | C5.6 | S20E17 | 4077 |
| 1983-02-01 | 18:33 | 19:03 | 119 | C5.1 | S19E13 | 4077 |
| 1983-02-04 | 17:50 | 18:00 | 27 | C4.6 | S19E25 | 4079 |
| 1983-02-25 | 20:28 | 20:32 | 75 | C4.5 | S21E50 | 4098 |
| 1983-02-09 | 22:15 | 22:26 | 81 | C3.7 | – | – |
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
144 flares of class C or larger in February 1983; by M/X count it ranks 309 of 565 months.