Aurora & Space WeatherGeomagnetic activity in 1983
Mean Ap18.5
G1+140days
G3+12days
G50days
G1+ days by month
- January 1983
- February 1983
- March 1983
- April 1983
- May 1983
- June 1983
- July 1983
- August 1983
- September 1983
- October 1983
- November 1983
- December 1983
Nearby years (G1+ days)
111
88
58
97
159
140
139
83
71
56
59
Top 10 days by Ap
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 5 Feb 1983 | 8o | 143 | G4 |
| 2 Mar 1983 | 7o | 86 | G3 |
| 10 Jan 1983 | 8+ | 78 | G4 |
| 24 May 1983 | 8o | 77 | G4 |
| 13 Jun 1983 | 8- | 70 | G4 |
| 17 May 1983 | 7+ | 64 | G3 |
| 8 Aug 1983 | 8- | 62 | G4 |
| 24 Apr 1983 | 6+ | 61 | G2 |
| 4 Feb 1983 | 8- | 59 | G4 |
| 15 Apr 1983 | 7- | 59 | 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
1983 had 140 G1+ storm days (No. 8 of 95 years) and 12 G3+ days.