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Geomagnetic activity in May 1956
Mean Ap25.5No. 53 of 1138
G1+ days13
G3+ days6
Max Ap15616 May 1956
Daily Ap
Daily max Kp
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 1 May 1956 | 5- | 20 | G1 |
| 12 May 1956 | 5+ | 38 | G1 |
| 13 May 1956 | 7- | 34 | G3 |
| 15 May 1956 | 6+ | 42 | G2 |
| 16 May 1956 | 8+ | 156 | G4 |
| 17 May 1956 | 7o | 52 | G3 |
| 20 May 1956 | 6+ | 39 | G2 |
| 21 May 1956 | 5- | 16 | G1 |
| 23 May 1956 | 7- | 28 | G3 |
| 24 May 1956 | 7o | 95 | G3 |
| 25 May 1956 | 7o | 69 | G3 |
| 26 May 1956 | 5- | 13 | G1 |
| 29 May 1956 | 6- | 19 | G2 |
Same month a year earlier
| Month | Mean Ap | G1+ | G3+ |
|---|---|---|---|
| May 1955 | 11.5 | 8 | 1 |
| May 1956 | 25.5 | 13 | 6 |
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 25.5 in May 1956, No. 53 of 1138 months since 1932; 13 days reached G1 or higher.