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Solar flares in May 2002
C-class212
M-class14
X-class1
LargestX2.12002-05-20
Sunspot number204.1NOAA SWPC
Flares per day (C and above)
M/X flares per day
Same month a year earlier
| Month | C | M | X | Largest |
|---|---|---|---|---|
| May 2001 | 132 | 11 | 0 | M6.4 |
| May 2002 | 212 | 14 | 1 | X2.1 |
Top 15 flares
| Date | Begin | Peak | Min | Class | Location | Region |
|---|---|---|---|---|---|---|
| 2002-05-20 | 15:21 | 15:27 | 10 | X2.1 | S21E65 | 9961 |
| 2002-05-20 | 10:49 | 10:53 | 7 | M5.0 | – | 9961 |
| 2002-05-20 | 10:14 | 10:29 | 20 | M4.7 | – | 9961 |
| 2002-05-17 | 15:50 | 16:08 | 24 | M2.9 | S25E47 | 9954 |
| 2002-05-31 | 00:04 | 00:16 | 21 | M2.4 | – | – |
| 2002-05-27 | 18:00 | 18:10 | 23 | M2.0 | N11W69 | 9957 |
| 2002-05-30 | 17:11 | 17:24 | 28 | M1.6 | S16E49 | 9973 |
| 2002-05-17 | 00:55 | 01:23 | 35 | M1.5 | – | – |
| 2002-05-17 | 07:27 | 07:54 | 73 | M1.5 | – | – |
| 2002-05-21 | 21:20 | 21:39 | 40 | M1.5 | N17E38 | 9960 |
| 2002-05-07 | 03:37 | 03:46 | 30 | M1.4 | – | – |
| 2002-05-11 | 11:21 | 11:32 | 20 | M1.4 | S06W31 | 9937 |
| 2002-05-30 | 04:24 | 05:32 | 109 | M1.3 | – | – |
| 2002-05-24 | 06:37 | 06:46 | 14 | M1.1 | – | – |
| 2002-05-15 | 08:00 | 08:13 | 25 | M1.0 | S23E23 | 9948 |
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
227 flares of class C or larger in May 2002; by M/X count it ranks 189 of 565 months.