1971Year 7 of solar cycle 20

Geomagnetic storms of 1971

1971 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

65days 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 · 1971

6Jan

2Feb

4Mar

8Apr

4May

3Jun

2Jul

4Aug

5Sep

6Oct

3Nov

1Dec

Date	Level	Peak Kp	Hours at Kp 5 or more	ap
3 January 1971	G1	Kp 5+	6	56
18 January 1971	G1	Kp 5−	3	39
20 January 1971	G1	Kp 5+	6	56
27 – 29 January 1971	G2	Kp 6	27	80
30 January 1971	G1	Kp 5	6	48
31 January 1971	G1	Kp 5−	3	39
15 – 16 February 1971	G2	Kp 6	12	80
24 – 26 February 1971	G2	Kp 6+	24	94
12 – 13 March 1971	G2	Kp 6	15	80
14 – 15 March 1971	G1	Kp 5	12	48
19 March 1971	G1	Kp 5−	3	39
31 March 1971	G1	Kp 5−	3	39
1 April 1971	G1	Kp 5−	3	39
4 April 1971	G1	Kp 5+	3	56
4 April 1971	G1	Kp 5−	3	39
9 – 10 April 1971	G2	Kp 6	18	80
11 April 1971	G1	Kp 5	6	48
14 – 15 April 1971	G4	Kp 8−	15	179
21 – 22 April 1971	G2	Kp 6+	6	94
28 April 1971	G1	Kp 5	6	48
2 May 1971	G1	Kp 5−	6	39
6 – 7 May 1971	G2	Kp 6+	27	94
17 – 18 May 1971	G3	Kp 7−	36	111
30 May 1971	G1	Kp 5	3	48
2 – 3 June 1971	G1	Kp 5+	12	56
25 June 1971	G1	Kp 5+	9	56
29 June 1971	G1	Kp 5	3	48
21 July 1971	G1	Kp 5+	6	56
26 July 1971	G2	Kp 6−	6	67
2 August 1971	G1	Kp 5−	3	39
17 August 1971	G1	Kp 5+	3	56
31 August 1971	G1	Kp 5	6	48
31 August 1971	G1	Kp 5	6	48
13 September 1971	G1	Kp 5−	3	39
17 – 18 September 1971	G3	Kp 7−	15	111
25 September 1971	G2	Kp 6−	9	67
26 – 27 September 1971	G2	Kp 6+	15	94
30 September – 1 October 1971	G1	Kp 5−	9	39
3 October 1971	G1	Kp 5	3	48
6 October 1971	G1	Kp 5−	3	39
6 October 1971	G1	Kp 5	3	48
7 – 8 October 1971	G1	Kp 5+	9	56
9 October 1971	G2	Kp 6	6	80
28 – 29 October 1971	G1	Kp 5	9	48
22 November 1971	G1	Kp 5−	3	39
22 – 23 November 1971	G2	Kp 6	12	80
23 – 25 November 1971	G2	Kp 6	27	80
17 – 18 December 1971	G3	Kp 7+	18	154