Aurora & Space WeatherGeomagnetic activity in 2008
Mean Ap6.9
G1+16days
G3+0days
G50days
G1+ days by month
- January 2008
- February 2008
- March 2008
- April 2008
- May 2008
- June 2008
- July 2008
- August 2008
- September 2008
- October 2008
- November 2008
- December 2008
Nearby years (G1+ days)
158
60
77
40
29
16
4
15
34
52
30
Top 10 days by Ap
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 27 Mar 2008 | 5o | 36 | G1 |
| 11 Oct 2008 | 6+ | 34 | G2 |
| 29 Feb 2008 | 5+ | 31 | G1 |
| 4 Sep 2008 | 6o | 31 | G2 |
| 9 Mar 2008 | 6- | 30 | G2 |
| 23 Apr 2008 | 5+ | 27 | G1 |
| 26 Mar 2008 | 5o | 26 | G1 |
| 28 Mar 2008 | 4+ | 24 | – |
| 28 Feb 2008 | 4+ | 23 | – |
| 1 Mar 2008 | 5+ | 22 | G1 |
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
2008 had 16 G1+ storm days (No. 92 of 95 years) and 0 G3+ days.