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Geomagnetic storm on 18 Jul 1961 (G4)

Max Kp8-G4

Ap93No. 6 in 1961

Consecutive G1+ days9

Ap rank199since 1932

Kp by 3-hour slot (UTC)

00–035o

03–066+

06–096o

09–125o

12–158-

15–187o

18–216-

21–246+

The days around it

Date	Max Kp	Ap	Level
15 Jul 1961	5-	25	G1
16 Jul 1961	6-	23	G2
17 Jul 1961	6+	36	G2
18 Jul 1961	8-	93	G4
19 Jul 1961	6o	18	G2
20 Jul 1961	5+	19	G1
21 Jul 1961	6-	35	G2

Highest-Ap days of 1961

28 Oct 1961128

27 Jul 1961114

1 Oct 1961114

13 Jul 1961102

14 Jul 196198

18 Jul 196193

2 Dec 196166

15 Apr 196161

21 Jun 196158

22 Jun 196158

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.

← 14 Jul 1961 27 Jul 1961 →

About this page

Max Kp 8-, Ap 93: No. 199 of 34,615 days since 1932 by Ap.