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Geomagnetic activity in December 1983
Mean Ap14.7No. 377 of 1138
G1+ days7
G3+ days0
Max Ap3311 Dec 1983
Daily Ap
Daily max Kp
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 6 Dec 1983 | 5o | 28 | G1 |
| 10 Dec 1983 | 5- | 22 | G1 |
| 11 Dec 1983 | 6o | 33 | G2 |
| 12 Dec 1983 | 5- | 23 | G1 |
| 26 Dec 1983 | 5- | 16 | G1 |
| 30 Dec 1983 | 5+ | 33 | G1 |
| 31 Dec 1983 | 5o | 27 | G1 |
Same month a year earlier
| Month | Mean Ap | G1+ | G3+ |
|---|---|---|---|
| December 1982 | 20.8 | 14 | 2 |
| December 1983 | 14.7 | 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.
About this page
Mean Ap 14.7 in December 1983, No. 377 of 1138 months since 1932; 7 days reached G1 or higher.