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Geomagnetic activity in January 1974
Mean Ap14.7No. 375 of 1138
G1+ days6
G3+ days0
Max Ap5025 Jan 1974
Daily Ap
Daily max Kp
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 4 Jan 1974 | 5- | 13 | G1 |
| 18 Jan 1974 | 5o | 24 | G1 |
| 25 Jan 1974 | 6+ | 50 | G2 |
| 26 Jan 1974 | 6o | 38 | G2 |
| 27 Jan 1974 | 5+ | 34 | G1 |
| 30 Jan 1974 | 5- | 21 | G1 |
Same month a year earlier
| Month | Mean Ap | G1+ | G3+ |
|---|---|---|---|
| January 1973 | 15.5 | 12 | 0 |
| January 1974 | 14.7 | 6 | 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 1973February 1974 →
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Mean Ap 14.7 in January 1974, No. 375 of 1138 months since 1932; 6 days reached G1 or higher.