Aurora & Space WeatherHome › Geomagnetic history › 2021
Geomagnetic activity in November 2021
Mean Ap9.8No. 776 of 1138
G1+ days4
G3+ days1
Max Ap724 Nov 2021
Daily Ap
Daily max Kp
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 2 Nov 2021 | 5- | 17 | G1 |
| 3 Nov 2021 | 6+ | 19 | G2 |
| 4 Nov 2021 | 8- | 72 | G4 |
| 30 Nov 2021 | 5+ | 10 | G1 |
Same month a year earlier
| Month | Mean Ap | G1+ | G3+ |
|---|---|---|---|
| November 2020 | 4.7 | 1 | 0 |
| November 2021 | 9.8 | 4 | 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 9.8 in November 2021, No. 776 of 1138 months since 1932; 4 days reached G1 or higher.