1966Year 2 of solar cycle 20

Geomagnetic storms of 1966

1966 had 33 geomagnetic storms reaching Kp 5 or more, 7 of them strong (G3 or above); the strongest reached Kp 9−. Every storm with its dates, and the Kp of every day of the year.

33Every storm

7G3–G5

Kp 9−Peak Kp

50days at Kp 5 or more

The year day by day

the day's highest Kp

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Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Kp 0–3Kp 4Kp 5 · G1Kp 6 · G2Kp 7 · G3Kp 8 · G4Kp 9 · G5

Every storm · 1966

2Jan

1Feb

5Mar

2Apr

2May

1Jun

2Jul

2Aug

6Sep

3Oct

2Nov

5Dec

Date	Level	Peak Kp	Hours at Kp 5 or more	ap
4 January 1966	G1	Kp 5−	3	39
21 – 22 January 1966	G1	Kp 5+	9	56
23 February 1966	G1	Kp 5	9	48
13 – 14 March 1966	G3	Kp 7+	21	154
19 March 1966	G1	Kp 5−	6	39
23 March 1966	G3	Kp 7	15	132
26 March 1966	G2	Kp 6−	3	67
28 – 29 March 1966	G3	Kp 7	15	132
1 – 2 April 1966	G1	Kp 5+	6	56
7 April 1966	G1	Kp 5−	3	39
26 May 1966	G3	Kp 7	15	132
31 May – 1 June 1966	G2	Kp 6+	18	94
24 – 25 June 1966	G1	Kp 5+	6	56
8 – 9 July 1966	G2	Kp 6	12	80
10 July 1966	G1	Kp 5	6	48
19 August 1966	G1	Kp 5−	3	39
29 – 31 August 1966	G3	Kp 7+	27	154
1 September 1966	G1	Kp 5	6	48
3 – 4 September 1966	G4	Kp 9−	30	300
6 September 1966	G1	Kp 5−	6	39
8 September 1966	G2	Kp 6−	18	67
15 September 1966	G1	Kp 5−	3	39
28 September 1966	G1	Kp 5	3	48
4 – 6 October 1966	G2	Kp 6	24	80
16 October 1966	G2	Kp 6	6	80
30 October – 1 November 1966	G1	Kp 5	27	48
28 – 29 November 1966	G1	Kp 5	6	48
30 November 1966	G1	Kp 5+	6	56
4 December 1966	G1	Kp 5−	3	39
5 December 1966	G1	Kp 5−	3	39
13 December 1966	G1	Kp 5−	3	39
14 – 15 December 1966	G3	Kp 7	15	132
26 – 27 December 1966	G1	Kp 5	12	48