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Geomagnetic activity in July 1983
Mean Ap12.4No. 557 of 1138
G1+ days7
G3+ days0
Max Ap4024 Jul 1983
Daily Ap
Daily max Kp
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 6 Jul 1983 | 5- | 14 | G1 |
| 12 Jul 1983 | 5- | 16 | G1 |
| 13 Jul 1983 | 5o | 19 | G1 |
| 18 Jul 1983 | 5- | 20 | G1 |
| 22 Jul 1983 | 5- | 10 | G1 |
| 23 Jul 1983 | 5- | 23 | G1 |
| 24 Jul 1983 | 6o | 40 | G2 |
Same month a year earlier
| Month | Mean Ap | G1+ | G3+ |
|---|---|---|---|
| July 1982 | 30.1 | 19 | 5 |
| July 1983 | 12.4 | 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 12.4 in July 1983, No. 557 of 1138 months since 1932; 7 days reached G1 or higher.