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Geomagnetic storm on 16 Jun 1939 (G3)

Max Kp7-G3

Ap35No. 37 in 1939

Consecutive G1+ days1

Ap rank2,106since 1932

Kp by 3-hour slot (UTC)

00–034+

03–065-

06–095+

09–127-

12–153o

15–183o

18–212o

21–241+

The days around it

Date	Max Kp	Ap	Level
13 Jun 1939	4o	14	–
14 Jun 1939	7o	61	G3
15 Jun 1939	3o	12	–
16 Jun 1939	7-	35	G3
17 Jun 1939	3+	6	–
18 Jun 1939	4o	20	–
19 Jun 1939	4o	20	–

Highest-Ap days of 1939

17 Apr 1939135

22 Aug 1939133

5 Jul 193994

23 Apr 193992

23 Aug 193989

13 Oct 193989

12 Aug 193988

24 Apr 193979

14 Oct 193974

25 Feb 193973

Dates and time slots are UTC. Kp is the 3-hourly planetary geomagnetic index (0–9); Ap is the daily average disturbance. G1–G5 follow the NOAA storm scale (Kp 5- and above counted as G1). Aurora visibility also depends on weather and location. The latest values are preliminary.

← 14 Jun 1939 3 Jul 1939 →

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Max Kp 7-, Ap 35: No. 2,106 of 34,615 days since 1932 by Ap.