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The aurora and solar activity archive

Searching for historical solar and auroral activity data? The archive is filled with data between the year 1996 and yesterday. You can choose a viewing mode to quickly look for days with interesting space weather and pick a day to view the archived data for that day with more detailed space weather data.

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January 2004

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1

M1.15
Kp5-

2

C4.01
Kp4

3

C1.64
Kp5-

4

C5.5
Kp4+

5

M9.9
Kp5-

6

M8.37
Kp6

7

X1.19
Kp5

8

M1.94
Kp3+

9

M4.63
Kp5

10

M1.11
Kp5+

11

C2.68
Kp5-

12

C2.64
Kp4-

13

C3
Kp4+

14

C1.45
Kp4

15

C4.7
Kp4

16

C1.33
Kp5-

17

M7.26
Kp4

18

M2.11
Kp4+

19

M1.54
Kp4+

20

M8.82
Kp4+

21

C3.31
Kp4-

22

C1.16
Kp7

23

B4.8
Kp6

24

B3.7
Kp5

25

C9.01
Kp6-

26

C2.3
Kp4

27

B4.39
Kp4

28

Kp6-

29

Kp3

30

C3.03
Kp5-

31

C5.89
Kp4+
 
       
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Last X-flare2026/03/30X1.5
Last M-flare2026/04/09M1.0
Last geomagnetic storm2026/04/18Kp6- (G2)
Spotless days
Last 365 days3 days
20263 days (3%)
Last spotless day2026/02/24
Monthly mean Sunspot Number
March 202685.9 +7.7
April 202683.6 -2.3
Last 30 days92.3 +30.4

This day in history*

Solar flares
12022M3.7
22001M2.91
32024M2.1
42022M1.67
52021M1.1
DstG
12002-126G3
22024-117G3
31957-111G3
41977-91G2
51981-81G2
*since 1994

Aurora on this day in history

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