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Geomagnetic activity in July 1949
Mean Ap7.7No. 961 of 1138
G1+ days2
G3+ days0
Max Ap1816 Jul 1949
Daily Ap
Daily max Kp
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 12 Jul 1949 | 5o | 10 | G1 |
| 16 Jul 1949 | 5o | 18 | G1 |
Same month a year earlier
| Month | Mean Ap | G1+ | G3+ |
|---|---|---|---|
| July 1948 | 9.9 | 1 | 0 |
| July 1949 | 7.7 | 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 7.7 in July 1949, No. 961 of 1138 months since 1932; 2 days reached G1 or higher.