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Geomagnetic activity in March 2021
Mean Ap10.1No. 745 of 1138
G1+ days7
G3+ days0
Max Ap2720 Mar 2021
Daily Ap
Daily max Kp
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 1 Mar 2021 | 6- | 25 | G2 |
| 2 Mar 2021 | 5o | 20 | G1 |
| 3 Mar 2021 | 5- | 19 | G1 |
| 14 Mar 2021 | 5o | 23 | G1 |
| 20 Mar 2021 | 6- | 27 | G2 |
| 21 Mar 2021 | 5- | 22 | G1 |
| 25 Mar 2021 | 5o | 17 | G1 |
Same month a year earlier
| Month | Mean Ap | G1+ | G3+ |
|---|---|---|---|
| March 2020 | 5.6 | 0 | 0 |
| March 2021 | 10.1 | 7 | 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 10.1 in March 2021, No. 745 of 1138 months since 1932; 7 days reached G1 or higher.