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Geomagnetic activity in July 2021
Mean Ap5.5No. 1081 of 1138
G1+ days0
G3+ days0
Max Ap1414 Jul 2021
Daily Ap
Daily max Kp
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| – | – | – | – |
Same month a year earlier
| Month | Mean Ap | G1+ | G3+ |
|---|---|---|---|
| July 2020 | 4.4 | 0 | 0 |
| July 2021 | 5.5 | 0 | 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 5.5 in July 2021, No. 1081 of 1138 months since 1932; 0 days reached G1 or higher.