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Geomagnetic activity in January 1935
Mean Ap8.7No. 869 of 1138
G1+ days5
G3+ days0
Max Ap2817 Jan 1935
Daily Ap
Daily max Kp
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 1 Jan 1935 | 5- | 12 | G1 |
| 17 Jan 1935 | 5+ | 28 | G1 |
| 27 Jan 1935 | 5- | 13 | G1 |
| 28 Jan 1935 | 5+ | 18 | G1 |
| 31 Jan 1935 | 5- | 12 | G1 |
Same month a year earlier
| Month | Mean Ap | G1+ | G3+ |
|---|---|---|---|
| January 1934 | 5.9 | 1 | 0 |
| January 1935 | 8.7 | 5 | 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.
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Mean Ap 8.7 in January 1935, No. 869 of 1138 months since 1932; 5 days reached G1 or higher.