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Geomagnetic activity in December 1965
Mean Ap7.1No. 998 of 1138
G1+ days2
G3+ days0
Max Ap191 Dec 1965
Daily Ap
Daily max Kp
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 24 Dec 1965 | 5- | 9 | G1 |
| 26 Dec 1965 | 5- | 19 | G1 |
Same month a year earlier
| Month | Mean Ap | G1+ | G3+ |
|---|---|---|---|
| December 1964 | 5.3 | 2 | 0 |
| December 1965 | 7.1 | 2 | 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 7.1 in December 1965, No. 998 of 1138 months since 1932; 2 days reached G1 or higher.