Aurora & Space WeatherHome › Geomagnetic history › 2018
Geomagnetic activity in January 2018
Mean Ap5.5No. 1080 of 1138
G1+ days1
G3+ days0
Max Ap1314 Jan 2018
Daily Ap
Daily max Kp
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 14 Jan 2018 | 5- | 13 | G1 |
Same month a year earlier
| Month | Mean Ap | G1+ | G3+ |
|---|---|---|---|
| January 2017 | 9.5 | 1 | 0 |
| January 2018 | 5.5 | 1 | 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.
← December 2017February 2018 →
About this page
Mean Ap 5.5 in January 2018, No. 1080 of 1138 months since 1932; 1 days reached G1 or higher.