JANUARY 2012


        PROVISIONAL INTERNATIONAL NORMALIZED HEMISPHERIC SUNSPOT NUMBERS


               Date             Ri              Rn              Rs
       __________________________________________________________________

                 1              44               0              44
                 2              57              14              43
                 3              74              31              43
                 4              78              42              36
                 5              67              45              22
                 6              70              54              16
                 7              70              50              20
                 8              64              49              15
                 9              49              42               7
                10              43              43               0
                11              39              39               0
                12              32              32               0
                13              44              35               9
                14              73              48              25
                15              92              62              30
                16              95              71              24
                17              87              58              29
                18              78              53              25
                19              65              50              15
                20              63              63               0
                21              69              69               0
                22              67              67               0
                23              70              70               0
                24              53              53               0
                25              47              47               0
                26              30              30               0
                27              40              24              16
                28              28              20               8
                29              35              18              17
                30              38              29               9
                31              46              35              11
       __________________________________________________________________

       MONTHLY MEAN :          58.3            43.3            15.0

       COOPERATING STATIONS :   68              64              64

                 PILOT STATION : Specola Solare Ticinese, Locarno

       __________________________________________________________________

                   Reproduction permitted if source mentionned
                                Frédéric Clette