Stanford Mean Solar Magnetic Field (microTesla)

       2021                                                                               

        Jan.   Feb.  March  April   May    June   July   Aug.   Sept.  Oct.   Nov.   Dec. 
 day
  01    -16      4      6      9      0      1      9     -3     -1      0      .     20
  02      .     11     18      8      6     -9      2     -2     -3      8      .      1
  03      .     17      5      7     -1    -11     -4     -7     -1      5      .      .
  04      .     13     11      2     -7    -16     -6     -7      2     -2      .      .
  05     12      3     10     -3     -9     -9     -2    -12     11      4     -1     -9

  06     14      3      7      0     -8    -10     -2    -12     27      3     -1      .
  07     23     -6      1     -2     -9    -10    -13    -15     28     -4      1    -10
  08     12    -12     -1      3     -9     -2    -17     -4     29     -1      7      .
  09      4      .     -4    -11    -11     -3    -17      2     24     -3      1     -1
  10     -2     -4      0     -3    -10    -13    -23      9     17     -3      2      1

  11     -1      .      0     -4    -11    -21    -22     12     17     -2     13      0
  12    -27      3      2    -14    -11    -29    -14      8      8     -1     -5      .
  13     -7      0     -8    -13    -13    -25     -3      7      6      9     -3      .
  14     -5      8      .    -17    -17    -24      1      2     14      4      1    -14
  15      8      .     -5    -13    -21    -21      8     -2     21      0      .     -9

  16      8      .    -16    -14    -24     -9      9     -9      4     -6    -10    -16
  17      8    -18      .     -9    -16      0      5     -4     -4    -10     -9    -21
  18     -2    -20      .     -1    -18      2      1      4     -8     -3      .    -22
  19     -6    -16     -7    -12    -11      7     -6     -2     -5     -8      .    -27
  20    -19    -13     -6     -4     -2      2     -5    -19     -5      .     -4     -2

  21    -22      1     -4    -12     -1     -1     -5     -8    -12    -12     -8     -6
  22    -13      7      0     -7      1     -3     -2     -8      2      3     -7      .
  23    -14      6      4    -10      1     -6     -3    -12      0      7     -3      .
  24      .     -1     -1      9      3      0     -6     -3     10      .      1      8
  25     16     -1     -7     10     -1      0     -3     -4     13     15      4      .

  26     16     -1     -2      3     -1      2     -4      7      8      5      9     48
  27      .     -1     -3      6     -2      5    -10     18      3     11     20     39
  28      .      1     -1      8      2      9    -11     18      1      4     17      .
  29    -16            11      4     -1      4     18      9     -4     -4     22      .
  30    -16            10      8      0      3     -3      6     -1      .     24     19
  31     -4            10            -2             7      0             .            13