Aurora & Space WeatherGeomagnetic activity in 2007
Mean Ap7.5
G1+29days
G3+0days
G50days
G1+ days by month
- January 2007
- February 2007
- March 2007
- April 2007
- May 2007
- June 2007
- July 2007
- August 2007
- September 2007
- October 2007
- November 2007
- December 2007
Nearby years (G1+ days)
74
158
60
77
40
29
16
4
15
34
52
Top 10 days by Ap
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 23 May 2007 | 5+ | 34 | G1 |
| 24 May 2007 | 6- | 30 | G2 |
| 29 Sep 2007 | 5o | 30 | G1 |
| 1 Apr 2007 | 5o | 29 | G1 |
| 29 Jan 2007 | 5+ | 28 | G1 |
| 28 Apr 2007 | 5- | 28 | G1 |
| 17 Jan 2007 | 5- | 25 | G1 |
| 2 Jan 2007 | 5- | 24 | G1 |
| 30 Jan 2007 | 4+ | 24 | – |
| 13 Mar 2007 | 5o | 24 | 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
2007 had 29 G1+ storm days (No. 87 of 95 years) and 0 G3+ days.