Aurora & Space WeatherHome › Geomagnetic history › 2015
Geomagnetic activity in March 2015
Mean Ap16.3No. 283 of 1138
G1+ days7
G3+ days1
Max Ap10817 Mar 2015
Daily Ap
Daily max Kp
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 1 Mar 2015 | 5+ | 26 | G1 |
| 2 Mar 2015 | 5+ | 28 | G1 |
| 17 Mar 2015 | 8- | 108 | G4 |
| 18 Mar 2015 | 6o | 47 | G2 |
| 19 Mar 2015 | 5o | 26 | G1 |
| 20 Mar 2015 | 5- | 22 | G1 |
| 22 Mar 2015 | 6+ | 24 | G2 |
Same month a year earlier
| Month | Mean Ap | G1+ | G3+ |
|---|---|---|---|
| March 2014 | 4.9 | 0 | 0 |
| March 2015 | 16.3 | 7 | 1 |
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 16.3 in March 2015, No. 283 of 1138 months since 1932; 7 days reached G1 or higher.