Statistics of the Kp-value

Select year from the list

First two charts are showing maximum and average values of the official Kp-value. Data is available from January 1st 2000 onwards, and by default it shows the values of the current year. Averages are calculated from the sum of the eight consecutive 3-hours periods of each day. You can zoom to the area of interest with your mouse (or fingers, if you are using touch-screen device).

Showing time span 01.01.2022 - 09.12.2022

Next two tables are showing how many times each Kp-value (maximum and average values) has occurred in each year. As we know, the Kp can have value between 0 and 9 with steps of 0.33. Values in the tables are rounded to nearest integer, which means that for e.g. Kp 2.67, 3 and 3.33 are all counted as 3, and correspondingly 3.67, 4 and 4.33 are counted as 4 and so on.

Interpretation of the tables is quite straightforward. For example from the first table we can see that in year 2015 there were 28 days, when the highest measured official Kp-value has been 1 (and as explained earlier, this includes also values 0.67 and 1.33), and three days, when the highest measured Kp was 8 (7.67-8.33). From the second table we can see that on the same year there were 32 days, when the average Kp-value of the day was 4. In this table the values are rounded slightly differently, because averages are calculated from the average Kp-value of the whole day, and therefore doesn't follow the steps of 0.33. For example average Kp value 4 includes all values from 3.5 to 4.49.

Kp-values (max values of the day)
Year0123456789
2000116681049443211072
2001027801217433131232
2002026631148847151110
200303287110594471223
200412877971033515424
200533671100784515971
2006579899359289120
2007886908270263000
200810879110062124000
200929135120581922000
201014831288045103110
20111062110109402110210
201275110299553115510
201310661228354216210
201424511211964194000
201562867120754318530
201604972102804518000
201714999108613410210
20188871238149124100
20192841379138111100
2020694139863271000
20211701168961224110
202233064118754210100
Kp-values (averages of the day)
Year0123456789
20008911229039122200
200111105146692363110
200211871269831120000
20032337912394274300
20041497126922842210
200521107102893277000
20064715391492221000
20076114496491500000
2008631479849900000
2009119184548000000
2010691858122530000
201145166104391100000
201241146113441741000
20135816389411040000
20142515712651600000
20152690136703283000
201623123114762631000
201724149103602531000
2018451909131620000
2019481949222810000
2020572077720400000
2021371809941620000
202217105125761910000

Next tables contains basically same data as above, but shown in different format.

Year
2000
Kp 0 1 2 3 4 5 6 7 8 9
Max 1 16 68 104 94 43 21 10 7 2
Ka. 8 91 122 90 39 12 2 2 0 0
Year
2001
Kp 0 1 2 3 4 5 6 7 8 9
Max 0 27 80 121 74 33 13 12 3 2
Ka. 11 105 146 69 23 6 3 1 1 0
Year
2002
Kp 0 1 2 3 4 5 6 7 8 9
Max 0 26 63 114 88 47 15 11 1 0
Ka. 11 87 126 98 31 12 0 0 0 0
Year
2003
Kp 0 1 2 3 4 5 6 7 8 9
Max 0 3 28 71 105 94 47 12 2 3
Ka. 2 33 79 123 94 27 4 3 0 0
Year
2004
Kp 0 1 2 3 4 5 6 7 8 9
Max 1 28 77 97 103 35 15 4 2 4
Ka. 14 97 126 92 28 4 2 2 1 0
Year
2005
Kp 0 1 2 3 4 5 6 7 8 9
Max 3 36 71 100 78 45 15 9 7 1
Ka. 21 107 102 89 32 7 7 0 0 0
Year
2006
Kp 0 1 2 3 4 5 6 7 8 9
Max 5 79 89 93 59 28 9 1 2 0
Ka. 47 153 91 49 22 2 1 0 0 0
Year
2007
Kp 0 1 2 3 4 5 6 7 8 9
Max 8 86 90 82 70 26 3 0 0 0
Ka. 61 144 96 49 15 0 0 0 0 0
Year
2008
Kp 0 1 2 3 4 5 6 7 8 9
Max 10 87 91 100 62 12 4 0 0 0
Ka. 63 147 98 49 9 0 0 0 0 0
Year
2009
Kp 0 1 2 3 4 5 6 7 8 9
Max 29 135 120 58 19 2 2 0 0 0
Ka. 119 184 54 8 0 0 0 0 0 0
Year
2010
Kp 0 1 2 3 4 5 6 7 8 9
Max 14 83 128 80 45 10 3 1 1 0
Ka. 69 185 81 22 5 3 0 0 0 0
Year
2011
Kp 0 1 2 3 4 5 6 7 8 9
Max 10 62 110 109 40 21 10 2 1 0
Ka. 45 166 104 39 11 0 0 0 0 0
Year
2012
Kp 0 1 2 3 4 5 6 7 8 9
Max 7 51 102 99 55 31 15 5 1 0
Ka. 41 146 113 44 17 4 1 0 0 0
Year
2013
Kp 0 1 2 3 4 5 6 7 8 9
Max 10 66 122 83 54 21 6 2 1 0
Ka. 58 163 89 41 10 4 0 0 0 0
Year
2014
Kp 0 1 2 3 4 5 6 7 8 9
Max 2 45 112 119 64 19 4 0 0 0
Ka. 25 157 126 51 6 0 0 0 0 0
Year
2015
Kp 0 1 2 3 4 5 6 7 8 9
Max 6 28 67 120 75 43 18 5 3 0
Ka. 26 90 136 70 32 8 3 0 0 0
Year
2016
Kp 0 1 2 3 4 5 6 7 8 9
Max 0 49 72 102 80 45 18 0 0 0
Ka. 23 123 114 76 26 3 1 0 0 0
Year
2017
Kp 0 1 2 3 4 5 6 7 8 9
Max 1 49 99 108 61 34 10 2 1 0
Ka. 24 149 103 60 25 3 1 0 0 0
Year
2018
Kp 0 1 2 3 4 5 6 7 8 9
Max 8 87 123 81 49 12 4 1 0 0
Ka. 45 190 91 31 6 2 0 0 0 0
Year
2019
Kp 0 1 2 3 4 5 6 7 8 9
Max 2 84 137 91 38 11 1 1 0 0
Ka. 48 194 92 22 8 1 0 0 0 0
Year
2020
Kp 0 1 2 3 4 5 6 7 8 9
Max 6 94 139 86 32 7 1 0 0 0
Ka. 57 207 77 20 4 0 0 0 0 0
Year
2021
Kp 0 1 2 3 4 5 6 7 8 9
Max 1 70 116 89 61 22 4 1 1 0
Ka. 37 180 99 41 6 2 0 0 0 0
Year
2022
Kp 0 1 2 3 4 5 6 7 8 9
Max 3 30 64 118 75 42 10 1 0 0
Ka. 17 105 125 76 19 1 0 0 0 0

Next diagram contains averages of monthly Ap-values starting from January 2000. Ap-value is calculated by multiplying each of the eight daily Kp-value with specific factor, summing all of the monthly Ap-values and dividing sum with number of days for the same month.

                       
Jan
Ap 8.66		 Feb
Ap 9.01		 Mar
Ap 10.57		 Apr
Ap 10.53		 May
Ap 9.34		 Jun
Ap 8.74		 Jul
Ap 9.48		 Aug
Ap 9.58		 Sep
Ap 10.79		 Oct
Ap 11.12		 Nov
Ap 10.00		 Dec
Ap 7.76