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Monthly overview (Jul 2021)

The monthly mean values of the geomagnetic field components at Kakioka are D: -7°-47.9′°, H: 30095nT, Z: 35882nT and F: 46832nT for July 2021.

Monthly average of the K-index daily sum is 11.8. indicates a slightly low level of geomagnetic activity during the month.

Notable geomagnetic events include 0 magnetic storms, 4 si, 1 bay, 1 sfe, 5 pi and 0 pc.

The international 5 quietest days are the 4,23,24,25,26^th.

The international 5 most disturbed days are the 14,15,20,22,28^th.

Date	K-index daily sum	Geomagnetic activity	Geomagnetic phenomena	International 5 quietest days	International 5 quietest days	geomagnetic 1-minute value plot
1	14	moderately calm				plot
2	10	calm				plot
3	07	calm				plot
4	04	calm	sfe	○		plot
5	16	moderately calm	si			plot
6	16	moderately calm	pi			plot
7	19	moderately disturbed				plot
8	07	calm				plot
9	13	moderately calm				plot
10	12	moderately calm				plot
11	05	calm	pi			plot
12	15	moderately calm	pi			plot
13	09	calm				plot
14	17	moderately disturbed	si		○	plot
15	20	moderately disturbed			○	plot
16	10	calm				plot
17	08	calm				plot
18	08	calm				plot
19	14	moderately calm	si			plot
20	18	moderately disturbed			○	plot
21	13	moderately calm				plot
22	17	moderately disturbed	pi		○	plot
23	01	extremely calm		○		plot
24	03	extremely calm		○		plot
25	04	calm		○		plot
26	11	moderately calm		○		plot
27	13	moderately calm				plot
28	19	moderately disturbed	bay pi		○	plot
29	15	moderately calm				plot
30	15	moderately calm	si			plot
31	14	moderately calm				plot

*) Plot diagram opens in a separate window.