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(The data for this month in the wdc-like format is here.)

                                      WDC for Geomagnetism, Kyoto
                                Hourly Equatorial Dst Values (FINAL)      
                                             AUGUST   2017
      unit=nT                                                                                      UT
      1   2   3   4   5   6   7   8    9  10  11  12  13  14  15  16   17  18  19  20  21  22  23  24
DAY
 1    5   4   2   0  -3  -1   3   7    6   3   3   7   6   2   6   3    4   2   1   1   3   3   3   5
 2    1   2   3   6   5   7   5   6    4   4   3   2   3   4   3  -5   -5  -4  -4  -5  -6  -7  -3  -1
 3   -1   1   1   2  -1  -3  -3   0    1   4   6  11  12  12  11   8    5  -1  -1  -3   1   5   5  14
 4   20  31  29  30  35  29  17  10  -12 -24 -22 -33 -27 -25 -32 -32  -28 -29 -26 -24 -20 -19 -14 -14
 5  -15 -15 -10  -9 -19 -29 -27 -30  -25 -18 -18 -20 -19 -18 -17 -11  -11 -15 -14 -17 -17 -17 -19 -20

 6  -23 -18 -12  -7  -8 -11  -9 -10  -12 -20 -22 -19 -16 -15 -15 -15  -14 -16 -20 -19 -16 -12 -12  -9
 7   -8 -10  -8 -10  -9  -7  -8 -11  -15 -17 -15 -15 -16 -15 -11 -11  -10 -10  -9  -7  -7  -5  -4  -6
 8  -11 -15 -15 -16 -11  -9  -5  -5   -9 -10  -8  -7  -3   0   1   3    2  -3  -4  -2   4   9   9   5
 9    2   0  -4  -4  -2  -1  -3  -3    0  -1  -3  -1  -3  -6  -4  -3   -2   0   0  -3  -4  -5  -3  -1
10   -1   0   1   0   0   0   0  -4   -5  -5  -4  -6  -8  -4  -2   2    3   3   3   7  10   9   6   1

11   -1   5  11   9   4  -5  -6  -4    0   3   6   4   3   2   2   3    2   4   5  -3  -1   7   9  10
12    6  -1  -2  -4  -1   1   2  -1   -6   1   3   7   6   3   3   2    4   4   3  -3  -7  -8  -6  -5
13  -11 -11  -8  -8  -4  -3  -3  -4   -3  -3  -1  -3  -5  -6  -3  -1   -2  -3  -8  -7  -4   0   1   1
14   -6  -9 -10  -7  -5  -7  -7  -6   -5  -6  -3  -4  -5  -8  -6  -5   -5  -5  -8  -6  -2   2   4   1
15    0  -1   0  -4  -3  -2   0   2    2   0   2   3   1   0   0   2    4   3   4   7   8   8   7   7

16    9  12   8   6   6   4   1  -6   -8  -2   3   4   1  -2   2   3    4   3   3   4   5   5   3   7
17    9   5   7   3  -2  -2   4   6  -13 -28 -36 -33 -31 -33 -27 -27  -26 -26 -28 -25 -22 -21 -23 -21
18  -21 -20 -15 -16 -16 -12 -11 -17  -20 -16 -10 -10 -14 -16 -24 -20  -15 -20 -24 -25 -21 -10  -8  -9
19  -12 -16 -16 -16 -16 -27 -33 -24  -51 -41 -23 -24 -16 -18 -16 -16  -12 -12 -16 -15 -12 -14 -12 -17
20  -25 -28 -27 -41 -41 -35 -34 -34  -26 -26 -26 -21 -17 -17 -16 -18  -18 -15 -14 -18 -17 -22 -23 -20

21  -16 -15 -16 -16 -17 -15 -13 -13  -18 -23 -22 -15 -11  -9 -10 -12  -10 -10  -8  -8  -7  -6  -3  -3
22   -4 -14 -24 -29 -25 -20 -31 -33  -30 -30 -30 -25 -22 -19 -19 -19  -14  -7  -1  -2  -7  -8 -14 -17
23  -17 -22 -24 -31 -33 -36 -38 -38  -47 -44 -39 -41 -52 -52 -43 -42  -43 -43 -32 -40 -36 -35 -39 -39
24  -36 -30 -26 -26 -32 -35 -35 -38  -36 -31 -30 -33 -35 -35 -29 -19  -17 -18 -18 -14 -14 -20 -22 -21
25  -21 -18 -16 -15 -19 -17 -16 -15  -11  -9  -5  -3  -3  -6 -10 -12   -9  -9  -9  -8 -12 -13 -12 -12

26  -11 -11 -11 -12 -12 -10  -9 -10   -7  -7  -7  -6  -7  -7  -9  -7   -4  -6  -6  -6  -7  -8  -8  -9
27   -9  -8 -12 -13 -13  -7  -1  -3   -4  -8 -18 -19 -11  -7  -5  -7   -7 -15 -20 -29 -33 -39 -39 -36
28  -32 -30 -28 -26 -26 -26 -22 -21  -23 -24 -26 -28 -24 -20 -18 -19  -20 -17 -12  -9  -8 -10 -11 -10
29   -8  -1   1   2   0  -6  -7  -6   -1   2   0  -3  -5  -3  -2  -2    0   9  12   7  -6  -8  -9  -9
30   -9 -12 -16 -16 -13 -11  -6  -2   -2  -5  -7  -7  -6  -6  -5  -3   -1   1   2   3   3   2   2  -1

31   -1  -1   9  10  11  21  60  37   -1 -42 -57 -68 -63 -63 -62 -58  -53 -43 -43 -42 -42 -38 -36 -34