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Geomagnetic storm on 31 Aug 1957 (G3)

Max Kp7oG3

Ap36No. 42 in 1957

Consecutive G1+ days9

Ap rank1,996since 1932

Kp by 3-hour slot (UTC)

00–032o

03–063-

06–093-

09–122-

12–154o

15–185o

18–217o

21–245o

The days around it

Date	Max Kp	Ap	Level
28 Aug 1957	3+	10	–
29 Aug 1957	7-	28	G3
30 Aug 1957	7-	38	G3
31 Aug 1957	7o	36	G3
1 Sep 1957	6-	28	G2
2 Sep 1957	8-	102	G4
3 Sep 1957	9-	135	G5

Highest-Ap days of 1957

23 Sep 1957164

13 Sep 1957160

30 Jun 1957150

4 Sep 1957145

29 Sep 1957139

3 Sep 1957135

2 Mar 1957132

5 Sep 1957112

22 Sep 1957104

2 Sep 1957102

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.

← 30 Aug 1957 2 Sep 1957 →

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Max Kp 7o, Ap 36: No. 1,996 of 34,615 days since 1932 by Ap.