Aurora & Space WeatherHome › Geomagnetic history › 1946
Geomagnetic activity in March 1946
Mean Ap33.5No. 12 of 1138
G1+ days14
G3+ days3
Max Ap21328 Mar 1946
Daily Ap
Daily max Kp
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 1 Mar 1946 | 6- | 28 | G2 |
| 2 Mar 1946 | 5- | 16 | G1 |
| 4 Mar 1946 | 5+ | 24 | G1 |
| 5 Mar 1946 | 5- | 25 | G1 |
| 10 Mar 1946 | 6+ | 64 | G2 |
| 11 Mar 1946 | 6+ | 32 | G2 |
| 22 Mar 1946 | 6- | 27 | G2 |
| 23 Mar 1946 | 6+ | 23 | G2 |
| 24 Mar 1946 | 8o | 117 | G4 |
| 25 Mar 1946 | 9- | 195 | G5 |
| 26 Mar 1946 | 6+ | 51 | G2 |
| 27 Mar 1946 | 5o | 30 | G1 |
| 28 Mar 1946 | 9- | 213 | G5 |
| 29 Mar 1946 | 6- | 35 | G2 |
Same month a year earlier
| Month | Mean Ap | G1+ | G3+ |
|---|---|---|---|
| March 1945 | 16.8 | 10 | 2 |
| March 1946 | 33.5 | 14 | 3 |
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 33.5 in March 1946, No. 12 of 1138 months since 1932; 14 days reached G1 or higher.