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Geomagnetic activity in September 1944
Mean Ap10.3No. 718 of 1138
G1+ days4
G3+ days0
Max Ap3230 Sep 1944
Daily Ap
Daily max Kp
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 2 Sep 1944 | 5- | 26 | G1 |
| 21 Sep 1944 | 5+ | 18 | G1 |
| 24 Sep 1944 | 5+ | 27 | G1 |
| 30 Sep 1944 | 6o | 32 | G2 |
Same month a year earlier
| Month | Mean Ap | G1+ | G3+ |
|---|---|---|---|
| September 1943 | 25.4 | 18 | 2 |
| September 1944 | 10.3 | 4 | 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 10.3 in September 1944, No. 718 of 1138 months since 1932; 4 days reached G1 or higher.