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Geomagnetic activity in January 1971
Mean Ap12.4No. 559 of 1138
G1+ days8
G3+ days0
Max Ap3928 Jan 1971
Daily Ap
Daily max Kp
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 3 Jan 1971 | 5+ | 33 | G1 |
| 18 Jan 1971 | 5- | 15 | G1 |
| 20 Jan 1971 | 5+ | 29 | G1 |
| 27 Jan 1971 | 6o | 37 | G2 |
| 28 Jan 1971 | 6o | 39 | G2 |
| 29 Jan 1971 | 5o | 16 | G1 |
| 30 Jan 1971 | 5o | 26 | G1 |
| 31 Jan 1971 | 5- | 17 | G1 |
Same month a year earlier
| Month | Mean Ap | G1+ | G3+ |
|---|---|---|---|
| January 1970 | 7.3 | 2 | 0 |
| January 1971 | 12.4 | 8 | 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 1970February 1971 →
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Mean Ap 12.4 in January 1971, No. 559 of 1138 months since 1932; 8 days reached G1 or higher.