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Geomagnetic activity in August 1959
Mean Ap23.4No. 87 of 1138
G1+ days14
G3+ days2
Max Ap13016 Aug 1959
Daily Ap
Daily max Kp
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 3 Aug 1959 | 5o | 20 | G1 |
| 4 Aug 1959 | 5- | 19 | G1 |
| 6 Aug 1959 | 5o | 22 | G1 |
| 9 Aug 1959 | 5- | 22 | G1 |
| 15 Aug 1959 | 6- | 27 | G2 |
| 16 Aug 1959 | 8+ | 130 | G4 |
| 17 Aug 1959 | 8+ | 114 | G4 |
| 18 Aug 1959 | 5+ | 28 | G1 |
| 19 Aug 1959 | 5- | 21 | G1 |
| 20 Aug 1959 | 6- | 38 | G2 |
| 21 Aug 1959 | 5+ | 34 | G1 |
| 22 Aug 1959 | 5o | 27 | G1 |
| 23 Aug 1959 | 5- | 28 | G1 |
| 24 Aug 1959 | 5o | 20 | G1 |
Same month a year earlier
| Month | Mean Ap | G1+ | G3+ |
|---|---|---|---|
| August 1958 | 17.7 | 6 | 3 |
| August 1959 | 23.4 | 14 | 2 |
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 23.4 in August 1959, No. 87 of 1138 months since 1932; 14 days reached G1 or higher.