Aurora & Space WeatherHome › Geomagnetic history › 1955
Geomagnetic activity in August 1955
Mean Ap8.9No. 856 of 1138
G1+ days3
G3+ days0
Max Ap346 Aug 1955
Daily Ap
Daily max Kp
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 4 Aug 1955 | 5+ | 30 | G1 |
| 6 Aug 1955 | 5+ | 34 | G1 |
| 28 Aug 1955 | 6o | 20 | G2 |
Same month a year earlier
| Month | Mean Ap | G1+ | G3+ |
|---|---|---|---|
| August 1954 | 9.9 | 4 | 0 |
| August 1955 | 8.9 | 3 | 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 8.9 in August 1955, No. 856 of 1138 months since 1932; 3 days reached G1 or higher.