Stanford Mean Solar Magnetic Field (microTesla)

       2013                                                                               

        Jan.   Feb.  March  April   May    June   July   Aug.   Sept.  Oct.   Nov.   Dec. 
 day
  01     -2    -12     -8      8     -2     28    -12     21      1     24     -3      7
  02    -17      .      9     11     16     19      3      5      .     20    -14      2
  03    -24     18     21     14     36      9      2      1     12     12    -14      4
  04    -26     23      .      8     36     10     -9      0     18      1     -9      8
  05      .      .     23     25     24     14    -21    -15     20     -9      0      7

  06      .     29      .      .     16     12    -34    -14      7     -4      5      .
  07     14     16      .     27      6      6      .      2     -8     -5     14      .
  08     22      .     28     20      5      1      .      3    -22    -11      6    -21
  09      .     49     38      3      7     -7      .    -10    -25     -6    -20    -17
  10     45     42     57     -9      3    -18      .    -20    -12     -4    -39    -16

  11     46     34     54     -9      4     -6      .    -34    -15     12    -35    -24
  12     35     37     34     -9     -2     -3      .    -50     -4     -3    -27    -17
  13     42      7      2    -11     -9     -8      .    -51     19    -23    -18      .
  14     14     -8     -2     -4    -25      6      .    -35     25    -31      0      .
  15     -2    -26     -5      5    -16      1      .    -29     21    -25      9      .

  16      5    -34     -1      1    -22      .      .    -16     13    -16     32      .
  17     -8    -29      2      0    -17    -23    -63      7      4     -9     28      .
  18    -26      .      4     -8    -10    -28    -39     25     -6     -1      .      .
  19    -41      .      3     -4    -11    -45    -27     32     -4      4      .    -10
  20    -35     -8     -1    -18    -17    -69     -7     20      2     16      .      3

  21    -35      0     -4    -34    -40    -46     22     -5     -3     19      1      1
  22    -12     -6     -5    -40    -52    -25     47    -18      3    -24    -14      6
  23      .     -8    -12    -31    -57      .     50     -2     16    -37     -4     -7
  24      .    -15    -16    -28    -62      .     38     -2     18      3     14     -6
  25      1    -17    -21    -29    -47      .     11     10     -8     -9     20     11

  26     -2    -21    -40    -16    -27     52     -7     19     -9    -30     20      6
  27     -3    -26      .    -13      .     32     -7     25     -4    -19     14      .
  28      0    -18    -26    -10     35     16     -2     18      0     13     12     -2
  29     -3           -15     -9     53     -1     16      4     -3     31      3     19
  30    -10             .     -9     54     -9     38      0      4     15     -3     26
  31    -17             .            45            39     -2             8            13