1946Year 3 of solar cycle 18

Geomagnetic storms of 1946

1946 had 72 geomagnetic storms reaching Kp 5 or more, 17 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.

72Every storm

17G3–G5

Kp 9Peak Kp

102days 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 · 1946

4Jan

6Feb

6Mar

4Apr

9May

6Jun

10Jul

6Aug

6Sep

4Oct

8Nov

3Dec

Date	Level	Peak Kp	Hours at Kp 5 or more	ap
3 – 4 January 1946	G3	Kp 7	33	132
11 January 1946	G1	Kp 5+	6	56
23 January 1946	G1	Kp 5	3	48
24 January 1946	G1	Kp 5	3	48
7 – 8 February 1946	G4	Kp 9−	33	300
10 February 1946	G1	Kp 5+	3	56
14 – 15 February 1946	G2	Kp 6	15	80
19 February 1946	G1	Kp 5	6	48
20 – 21 February 1946	G2	Kp 6	21	80
23 February 1946	G1	Kp 5−	3	39
1 March 1946	G2	Kp 6−	6	67
2 March 1946	G1	Kp 5−	3	39
4 – 5 March 1946	G1	Kp 5+	9	56
10 – 11 March 1946	G2	Kp 6+	24	94
22 March 1946	G2	Kp 6−	6	67
23 – 29 March 1946	G4	Kp 9−	111	300
1 April 1946	G1	Kp 5	3	48
9 April 1946	G2	Kp 6	12	80
14 – 15 April 1946	G3	Kp 7−	27	111
23 – 25 April 1946	G4	Kp 9−	39	300
6 May 1946	G2	Kp 6	6	80
6 – 7 May 1946	G3	Kp 7−	9	111
8 May 1946	G2	Kp 6+	9	94
9 May 1946	G2	Kp 6	18	80
11 May 1946	G3	Kp 7−	15	111
20 – 21 May 1946	G1	Kp 5	6	48
21 – 23 May 1946	G2	Kp 6+	24	94
23 May 1946	G2	Kp 6−	9	67
31 May 1946	G1	Kp 5−	3	39
7 – 8 June 1946	G3	Kp 7+	18	154
12 June 1946	G1	Kp 5	9	48
16 – 17 June 1946	G2	Kp 6	9	80
19 June 1946	G1	Kp 5	15	48
27 June 1946	G1	Kp 5−	3	39
29 June 1946	G3	Kp 7−	12	111
3 July 1946	G1	Kp 5−	6	39
7 July 1946	G1	Kp 5+	18	56
9 July 1946	G1	Kp 5−	3	39
14 July 1946	G1	Kp 5	6	48
16 July 1946	G1	Kp 5−	3	39
18 – 19 July 1946	G2	Kp 6+	21	94
23 July 1946	G1	Kp 5	3	48
25 July 1946	G1	Kp 5−	3	39
26 – 27 July 1946	G5	Kp 9	21	400
29 – 30 July 1946	G3	Kp 7	30	132
7 August 1946	G1	Kp 5	6	48
11 August 1946	G1	Kp 5	3	48
12 August 1946	G1	Kp 5−	3	39
14 – 15 August 1946	G2	Kp 6+	18	94
16 August 1946	G1	Kp 5	6	48
31 August 1946	G4	Kp 8−	12	179
10 September 1946	G1	Kp 5	6	48
16 – 17 September 1946	G3	Kp 7	15	132
17 – 19 September 1946	G4	Kp 8−	42	179
21 – 24 September 1946	G5	Kp 9	51	400
27 – 29 September 1946	G3	Kp 7+	36	154
29 September – 1 October 1946	G1	Kp 5+	18	56
9 October 1946	G1	Kp 5+	12	56
20 October 1946	G1	Kp 5	3	48
26 October 1946	G1	Kp 5−	3	39
26 – 27 October 1946	G3	Kp 7−	21	111
1 November 1946	G1	Kp 5−	6	39
6 November 1946	G1	Kp 5−	6	39
11 November 1946	G1	Kp 5−	3	39
12 November 1946	G1	Kp 5+	3	56
19 November 1946	G1	Kp 5−	3	39
21 November 1946	G1	Kp 5	6	48
24 November 1946	G2	Kp 6	3	80
25 November 1946	G1	Kp 5−	3	39
19 December 1946	G1	Kp 5+	6	56
21 December 1946	G1	Kp 5−	3	39
25 December 1946	G1	Kp 5−	3	39