1964Year 11 of solar cycle 19

Geomagnetic storms of 1964

1964 had 48 geomagnetic storms reaching Kp 5 or more, 4 of them strong (G3 or above); the strongest reached Kp 8−. Every storm with its dates, and the Kp of every day of the year.

48Every storm

4G3–G5

Kp 8−Peak Kp

62days at Kp 5 or more

The year day by day

the day's highest Kp

12345678910111213141516171819202122232425262728293031

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 · 1964

5Jan

5Feb

6Mar

7Apr

6May

2Jun

3Jul

3Aug

4Sep

3Oct

3Nov

1Dec

Date	Level	Peak Kp	Hours at Kp 5 or more	ap
2 January 1964	G3	Kp 7−	15	111
9 – 10 January 1964	G1	Kp 5−	9	39
16 January 1964	G1	Kp 5	6	48
25 January 1964	G1	Kp 5−	3	39
31 January 1964	G1	Kp 5	9	48
5 – 6 February 1964	G1	Kp 5+	9	56
8 February 1964	G2	Kp 6−	3	67
13 February 1964	G1	Kp 5	12	48
20 – 21 February 1964	G1	Kp 5+	6	56
25 February 1964	G2	Kp 6−	3	67
4 – 5 March 1964	G2	Kp 6	27	80
5 March 1964	G1	Kp 5−	6	39
12 March 1964	G1	Kp 5−	3	39
22 – 23 March 1964	G2	Kp 6	18	80
24 March 1964	G1	Kp 5−	3	39
30 March 1964	G2	Kp 6−	6	67
1 – 2 April 1964	G3	Kp 7+	12	154
11 April 1964	G1	Kp 5−	3	39
18 April 1964	G1	Kp 5	6	48
19 April 1964	G1	Kp 5−	3	39
27 – 28 April 1964	G1	Kp 5+	21	56
29 April 1964	G1	Kp 5	3	48
30 April – 1 May 1964	G2	Kp 6	6	80
10 – 11 May 1964	G1	Kp 5+	12	56
13 May 1964	G1	Kp 5+	6	56
14 – 15 May 1964	G2	Kp 6	12	80
16 May 1964	G1	Kp 5−	3	39
24 May 1964	G1	Kp 5−	3	39
25 May 1964	G2	Kp 6+	6	94
10 – 11 June 1964	G3	Kp 7−	18	111
20 June 1964	G1	Kp 5	3	48
7 July 1964	G1	Kp 5−	3	39
17 – 18 July 1964	G2	Kp 6−	9	67
29 July 1964	G1	Kp 5−	3	39
4 August 1964	G2	Kp 6+	9	94
11 August 1964	G1	Kp 5−	3	39
31 August – 1 September 1964	G1	Kp 5−	6	39
6 – 7 September 1964	G1	Kp 5	12	48
22 September 1964	G4	Kp 8−	6	179
28 September 1964	G2	Kp 6−	12	67
30 September 1964	G1	Kp 5−	3	39
4 October 1964	G1	Kp 5	12	48
19 October 1964	G1	Kp 5−	6	39
26 October 1964	G1	Kp 5+	6	56
1 November 1964	G1	Kp 5−	3	39
9 November 1964	G1	Kp 5−	3	39
23 November 1964	G1	Kp 5−	3	39
16 – 17 December 1964	G1	Kp 5+	6	56