Aurora & Space WeatherGeomagnetic activity in 1966
Mean Ap10.3
G1+50days
G3+8days
G52days
G1+ days by month
- January 1966
- February 1966
- March 1966
- April 1966
- May 1966
- June 1966
- July 1966
- August 1966
- September 1966
- October 1966
- November 1966
- December 1966
Nearby years (G1+ days)
93
75
78
62
30
50
62
74
52
60
65
Top 10 days by Ap
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 4 Sep 1966 | 9- | 112 | G5 |
| 3 Sep 1966 | 9- | 92 | G5 |
| 30 Aug 1966 | 7+ | 82 | G3 |
| 26 May 1966 | 7o | 78 | G3 |
| 23 Mar 1966 | 7o | 67 | G3 |
| 14 Mar 1966 | 7+ | 64 | G3 |
| 31 May 1966 | 6+ | 48 | G2 |
| 14 Dec 1966 | 7o | 48 | G3 |
| 28 Mar 1966 | 7o | 42 | G3 |
| 8 Sep 1966 | 6- | 42 | 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
1966 had 50 G1+ storm days (No. 77 of 95 years) and 8 G3+ days.