Aurora & Space WeatherGeomagnetic activity in 1986
Mean Ap12.5
G1+71days
G3+9days
G53days
G1+ days by month
- January 1986
- February 1986
- March 1986
- April 1986
- May 1986
- June 1986
- July 1986
- August 1986
- September 1986
- October 1986
- November 1986
- December 1986
Nearby years (G1+ days)
97
159
140
139
83
71
56
59
123
104
141
Top 10 days by Ap
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 8 Feb 1986 | 9o | 202 | G5 |
| 9 Feb 1986 | 9- | 100 | G5 |
| 12 Sep 1986 | 9- | 89 | G5 |
| 7 Feb 1986 | 8- | 82 | G4 |
| 6 May 1986 | 7- | 67 | G3 |
| 4 Nov 1986 | 6+ | 67 | G2 |
| 25 Nov 1986 | 7- | 49 | G3 |
| 24 Nov 1986 | 6o | 46 | G2 |
| 2 May 1986 | 7- | 43 | G3 |
| 23 Sep 1986 | 6o | 43 | G2 |
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
1986 had 71 G1+ storm days (No. 49 of 95 years) and 9 G3+ days.