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(The monthly data in the wdc-like format is here.)

                                      WDC for Geomagnetism, Kyoto
                                Hourly Equatorial Dst Values (PROVISIONAL)
                                             AUGUST   2021
      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   -1   0  -1  -1  -1  -1  -1  -3   -3  -4  -5  -5  -3  -5  -5  -4   -4  -5  -4  -4  -5  -7  -4  -2
 2    1   0  -2  -2  -1  -2  -1  -4   -4  -5   3   9  16  19  16   9   -1 -12 -28 -38 -22 -19  -3  -8
 3   -8 -18 -25 -20 -22 -24 -25 -27  -28 -25 -25 -26 -23 -23 -22 -25  -27 -30 -32 -35 -32 -33 -33 -32
 4  -27 -21 -21 -17 -15 -14 -10 -11  -11 -16 -16 -11  -4  -7  -5  -7   -4  -4  -8  -9  -8  -7  -7  -8
 5   -7  -7  -9 -11 -11  -8  -6  -6   -7  -8 -10  -9  -8  -9  -7  -5   -2  -3  -3  -2   0   1   1   1

 6    0   2   2   5   9   9  10   9    4  -1  -1   2   2   1   4   0   -4 -10 -13 -18 -20 -23 -26 -30
 7  -28 -30 -32 -36 -35 -33 -38 -30  -24 -19 -17 -20 -15 -14 -20 -19  -16 -19 -21 -23 -21 -20 -19 -21
 8  -23 -23 -22 -18 -12 -10  -9  -9   -9  -9 -12 -11  -7  -8  -8  -8   -6  -4  -3  -7  -7  -9  -9  -8
 9   -6  -3   0   0   0   1  -1   1    3  -1  -4  -5  -4  -4  -4   0    3   2  -1  -3  -2  -3  -5  -3
10    1   9  13   9   5   6   5   4   -2  -4  -3   1   3  -1  -6  -1   -1   0  -2  -4  -4  -5  -3  -3

11    1   7   5   1   2   1  -4  -8   -5  -5  -5  -3  -5  -9 -11  -9   -6  -5  -5  -9 -12 -12 -12 -11
12   -8  -2   2   4   3   4   1  -1   -1   0   0  -1   0  -1  -4  -4   -4  -9  -9  -2  -2   2  -1  -7
13   -7  -3  -5  -6  -2   5  11  14   14   4   8  16  16  12   5   0   -6  -8  -7  -8  -9 -11 -12 -11
14  -11  -7  -5  -6  -6  -7  -7  -5   -2   1   3   5   5   5   6   3   -1   0  -1  -2  -2   0   2  -1
15   -5  -6  -5  -2   0  -3  -8 -11  -17 -14 -14 -11 -11 -15 -16 -14  -11 -10 -11 -11 -11  -8 -17 -19

16  -21 -21 -21 -19 -17 -15 -12 -12  -16 -16 -14 -14 -10 -19 -21 -20  -15 -14 -15 -13 -13 -12 -11 -10
17   -7  -8 -12 -12 -11  -8  -6  -5   -4  -6 -10 -11 -11 -13  -7  -6   -6  -6  -6  -7  -4  -7 -13 -14
18  -13 -11 -12 -15 -15 -13  -9  -9   -9  -9  -9 -15 -17 -19 -18 -18  -14 -14 -14 -15 -12 -10  -9  -8
19   -6  -3  -2  -4  -5  -6  -8  -9   -9  -9  -8 -13 -16 -19 -18 -15  -16 -19 -21 -21 -18 -15 -14 -14
20  -10  -7  -6  -7  -8  -7 -11 -12  -12 -12 -16 -21 -25 -30 -31 -31  -28 -26 -25 -28 -27 -24 -21 -20

21  -16 -12  -9  -9  -7  -6  -7  -7    0   0  -2  -8 -11  -9 -10  -9   -8  -6  -4  -6  -5  -6  -7  -9
22   -9  -7  -4  -2  -2   1   1   1    2   2   2   0   0   1   0   1    1   2   4   3   4   5   5   5
23    6   7   6   6   6   5   6   6    9   8   8   7   7   8   5   6    9   9   8   8   5   1  -1   3
24    6   9  11  11  10  11  11   8    4  -2  -5  -5   1   4   6   6    8  11   7   1   4   6   4   0
25    2   6   6  -8 -22 -33 -40 -34  -25 -23 -23 -22 -23 -27 -23 -21  -20 -20 -20 -21 -22 -22 -21 -19

26  -17 -18 -19 -20 -16 -12 -13 -14  -17 -19 -18 -16  -8 -10 -13 -12  -11  -9  -9 -13 -14 -15 -16 -19
27  -19  -9  -6  -3   2   7   5   2   -6 -11 -14 -20  -8  -9 -28 -34  -37 -46 -59 -64 -69 -74 -78 -82
28  -79 -73 -64 -60 -56 -54 -49 -43  -43 -37 -30 -24 -21 -22 -22 -25  -24 -29 -28 -25 -24 -24 -24 -26
29  -24 -21 -19 -15 -16  -8  -8 -10  -11 -11 -12 -14 -12 -12 -11 -11  -12 -19 -23 -23 -12  -3  -8 -12
30  -10  -6  -4  -5  -7  -6  -3  -2   -2  -2  -8 -11 -16 -15 -13 -10   -8  -6  -7 -13 -17 -18 -17 -17

31  -16 -19 -19 -23 -24 -24 -23 -23  -24 -22 -21 -23 -24 -24 -20 -17  -13 -11 -15 -16 -18 -18 -19 -18