Aurora & Space WeatherGeomagnetic activity in 1946
Mean Ap18.6
G1+102days
G3+26days
G57days
G1+ days by month
- January 1946
- February 1946
- March 1946
- April 1946
- May 1946
- June 1946
- July 1946
- August 1946
- September 1946
- October 1946
- November 1946
- December 1946
Nearby years (G1+ days)
100
92
128
64
59
102
111
94
92
123
164
Top 10 days by Ap
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 28 Mar 1946 | 9- | 213 | G5 |
| 22 Sep 1946 | 9o | 198 | G5 |
| 25 Mar 1946 | 9- | 195 | G5 |
| 27 Jul 1946 | 9o | 152 | G5 |
| 23 Sep 1946 | 8o | 146 | G4 |
| 18 Sep 1946 | 8- | 136 | G4 |
| 7 Feb 1946 | 8+ | 127 | G4 |
| 8 Feb 1946 | 9- | 118 | G5 |
| 24 Mar 1946 | 8o | 117 | G4 |
| 23 Apr 1946 | 9- | 117 | G5 |
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
1946 had 102 G1+ storm days (No. 26 of 95 years) and 26 G3+ days.