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Geomagnetic activity in April 2013
Mean Ap5.4No. 1088 of 1138
G1+ days2
G3+ days0
Max Ap2424 Apr 2013
Daily Ap
Daily max Kp
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 24 Apr 2013 | 5o | 24 | G1 |
| 26 Apr 2013 | 5- | 18 | G1 |
Same month a year earlier
| Month | Mean Ap | G1+ | G3+ |
|---|---|---|---|
| April 2012 | 10.1 | 6 | 1 |
| April 2013 | 5.4 | 2 | 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.
About this page
Mean Ap 5.4 in April 2013, No. 1088 of 1138 months since 1932; 2 days reached G1 or higher.