Aurora & Space WeatherHome › Geomagnetic history › 1984
Geomagnetic activity in January 1984
Mean Ap13.4No. 479 of 1138
G1+ days7
G3+ days0
Max Ap3230 Jan 1984
Daily Ap
Daily max Kp
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 1 Jan 1984 | 5- | 28 | G1 |
| 2 Jan 1984 | 5- | 20 | G1 |
| 4 Jan 1984 | 6o | 30 | G2 |
| 5 Jan 1984 | 5+ | 26 | G1 |
| 29 Jan 1984 | 5o | 21 | G1 |
| 30 Jan 1984 | 5- | 32 | G1 |
| 31 Jan 1984 | 5o | 23 | G1 |
Same month a year earlier
| Month | Mean Ap | G1+ | G3+ |
|---|---|---|---|
| January 1983 | 15.7 | 8 | 1 |
| January 1984 | 13.4 | 7 | 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.
← December 1983February 1984 →
About this page
Mean Ap 13.4 in January 1984, No. 479 of 1138 months since 1932; 7 days reached G1 or higher.