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Geomagnetic storm on 25 Jun 1940 (G4)

Max Kp8+G4

Ap126No. 5 in 1940

Consecutive G1+ days2

Ap rank91since 1932

Kp by 3-hour slot (UTC)

00–035-

03–067o

06–095+

09–127+

12–158+

15–188-

18–217+

21–245+

The days around it

Date	Max Kp	Ap	Level
22 Jun 1940	3+	8	–
23 Jun 1940	4-	7	–
24 Jun 1940	4-	16	–
25 Jun 1940	8+	126	G4
26 Jun 1940	6-	24	G2
27 Jun 1940	3-	8	–
28 Jun 1940	3o	6	–

Highest-Ap days of 1940

30 Mar 1940189

24 Mar 1940187

25 Mar 1940184

31 Mar 1940128

25 Jun 1940126

29 Mar 1940100

3 Apr 194098

24 May 194078

25 Apr 194070

1 Apr 194066

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.

← 24 May 1940 13 Jul 1940 →

About this page

Max Kp 8+, Ap 126: No. 91 of 34,615 days since 1932 by Ap.