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Geomagnetic activity in May 1980
Mean Ap10.3No. 725 of 1138
G1+ days6
G3+ days0
Max Ap3811 May 1980
Daily Ap
Daily max Kp
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 9 May 1980 | 5- | 18 | G1 |
| 11 May 1980 | 6o | 38 | G2 |
| 12 May 1980 | 5o | 23 | G1 |
| 13 May 1980 | 5o | 14 | G1 |
| 25 May 1980 | 6+ | 34 | G2 |
| 31 May 1980 | 5- | 16 | G1 |
Same month a year earlier
| Month | Mean Ap | G1+ | G3+ |
|---|---|---|---|
| May 1979 | 13.9 | 7 | 1 |
| May 1980 | 10.3 | 6 | 0 |
Dates and time slots are UTC. Kp is the 3-hourly planetary geomagnetic index (0–9); Ap is the daily average disturbance. G1–G5 follow the NOAA storm scale (Kp 5- and above counted as G1). Aurora visibility also depends on weather and location. The latest values are preliminary.
About this page
Mean Ap 10.3 in May 1980, No. 725 of 1138 months since 1932; 6 days reached G1 or higher.