Aurora & Space WeatherHome › Geomagnetic history › 1949
Geomagnetic activity in February 1949
Mean Ap14.4No. 395 of 1138
G1+ days9
G3+ days0
Max Ap4622 Feb 1949
Daily Ap
Daily max Kp
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 3 Feb 1949 | 5- | 12 | G1 |
| 4 Feb 1949 | 6+ | 32 | G2 |
| 6 Feb 1949 | 5- | 22 | G1 |
| 7 Feb 1949 | 5+ | 23 | G1 |
| 17 Feb 1949 | 5+ | 28 | G1 |
| 21 Feb 1949 | 5o | 21 | G1 |
| 22 Feb 1949 | 6+ | 46 | G2 |
| 24 Feb 1949 | 5o | 25 | G1 |
| 27 Feb 1949 | 5+ | 18 | G1 |
Same month a year earlier
| Month | Mean Ap | G1+ | G3+ |
|---|---|---|---|
| February 1948 | 12.8 | 5 | 0 |
| February 1949 | 14.4 | 9 | 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 14.4 in February 1949, No. 395 of 1138 months since 1932; 9 days reached G1 or higher.