1985Year 10 of solar cycle 21

Geomagnetic storms of 1985

1985 had 65 geomagnetic storms reaching Kp 5 or more, 7 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.

65Every storm

7G3–G5

Kp 8+Peak Kp

83days 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 · 1985

7Jan

4Feb

4Mar

10Apr

1May

4Jun

7Jul

4Aug

5Sep

6Oct

8Nov

5Dec

Date	Level	Peak Kp	Hours at Kp 5 or more	ap
1 January 1985	G2	Kp 6−	6	67
2 January 1985	G1	Kp 5−	3	39
8 – 10 January 1985	G2	Kp 6	27	80
21 January 1985	G1	Kp 5−	3	39
22 – 23 January 1985	G2	Kp 6−	15	67
28 – 29 January 1985	G2	Kp 6	27	80
29 January 1985	G2	Kp 6−	3	67
5 – 6 February 1985	G2	Kp 6−	21	67
8 – 9 February 1985	G1	Kp 5−	6	39
10 February 1985	G1	Kp 5	3	48
27 – 28 February 1985	G3	Kp 7	18	132
1 March 1985	G1	Kp 5+	3	56
3 March 1985	G1	Kp 5−	3	39
5 – 6 March 1985	G2	Kp 6+	18	94
7 – 8 March 1985	G1	Kp 5+	9	56
1 April 1985	G1	Kp 5+	6	56
3 April 1985	G1	Kp 5−	3	39
3 April 1985	G1	Kp 5−	3	39
8 April 1985	G1	Kp 5+	3	56
9 April 1985	G2	Kp 6+	6	94
19 – 21 April 1985	G4	Kp 8+	36	236
26 April 1985	G1	Kp 5	6	48
26 – 28 April 1985	G3	Kp 7	27	132
29 April 1985	G2	Kp 6	3	80
30 April 1985	G3	Kp 7+	12	154
2 May 1985	G2	Kp 6	12	80
6 – 7 June 1985	G1	Kp 5+	15	56
9 – 10 June 1985	G2	Kp 6+	15	94
20 June 1985	G1	Kp 5	3	48
26 June 1985	G1	Kp 5−	3	39
1 July 1985	G1	Kp 5	3	48
4 July 1985	G2	Kp 6	9	80
6 July 1985	G1	Kp 5	3	48
12 July 1985	G3	Kp 7−	15	111
13 July 1985	G1	Kp 5−	3	39
17 July 1985	G1	Kp 5	6	48
31 July 1985	G1	Kp 5+	12	56
12 – 13 August 1985	G2	Kp 6+	18	94
22 August 1985	G1	Kp 5	9	48
25 August 1985	G1	Kp 5	3	48
31 August 1985	G1	Kp 5	9	48
14 September 1985	G2	Kp 6+	9	94
15 – 16 September 1985	G2	Kp 6	15	80
19 – 20 September 1985	G2	Kp 6	15	80
26 September 1985	G1	Kp 5	3	48
27 September 1985	G1	Kp 5−	3	39
5 – 6 October 1985	G3	Kp 7	30	132
7 October 1985	G1	Kp 5	3	48
12 October 1985	G1	Kp 5−	3	39
13 October 1985	G1	Kp 5−	3	39
15 October 1985	G1	Kp 5+	6	56
21 October 1985	G1	Kp 5	3	48
2 – 3 November 1985	G2	Kp 6	18	80
6 November 1985	G1	Kp 5−	3	39
10 November 1985	G1	Kp 5	3	48
13 November 1985	G2	Kp 6	3	80
17 November 1985	G1	Kp 5−	3	39
19 November 1985	G1	Kp 5	3	48
27 November 1985	G1	Kp 5−	3	39
29 – 30 November 1985	G3	Kp 7+	21	154
1 December 1985	G1	Kp 5−	3	39
13 December 1985	G1	Kp 5+	6	56
19 December 1985	G2	Kp 6−	15	67
28 December 1985	G1	Kp 5+	9	56
30 December 1985	G2	Kp 6	12	80