Aurora & Space WeatherHome › Geomagnetic history › 1988
Geomagnetic activity in June 1988
Mean Ap10.9No. 678 of 1138
G1+ days4
G3+ days0
Max Ap2725 Jun 1988
Daily Ap
Daily max Kp
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 25 Jun 1988 | 5o | 27 | G1 |
| 26 Jun 1988 | 5- | 17 | G1 |
| 29 Jun 1988 | 5o | 26 | G1 |
| 30 Jun 1988 | 5- | 22 | G1 |
Same month a year earlier
| Month | Mean Ap | G1+ | G3+ |
|---|---|---|---|
| June 1987 | 7.1 | 1 | 0 |
| June 1988 | 10.9 | 4 | 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 10.9 in June 1988, No. 678 of 1138 months since 1932; 4 days reached G1 or higher.