Aurora & Space WeatherGeomagnetic activity in 1955
Mean Ap11.2
G1+63days
G3+7days
G50days
G1+ days by month
- January 1955
- February 1955
- March 1955
- April 1955
- May 1955
- June 1955
- July 1955
- August 1955
- September 1955
- October 1955
- November 1955
- December 1955
Nearby years (G1+ days)
123
164
150
108
52
63
122
118
122
133
155
Top 10 days by Ap
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 19 Nov 1955 | 8- | 65 | G4 |
| 18 Jan 1955 | 8- | 59 | G4 |
| 25 Oct 1955 | 6o | 56 | G2 |
| 27 Apr 1955 | 8- | 54 | G4 |
| 30 Sep 1955 | 7- | 54 | G3 |
| 19 Jan 1955 | 6+ | 53 | G2 |
| 31 Mar 1955 | 6+ | 53 | G2 |
| 20 Nov 1955 | 6o | 47 | G2 |
| 28 Apr 1955 | 7o | 44 | G3 |
| 17 Jan 1955 | 7- | 43 | G3 |
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
1955 had 63 G1+ storm days (No. 56 of 95 years) and 7 G3+ days.