In the table below, the first column is the year and month ie July 1985 = 198507. The second column is the corresponding decimal fraction of the mid-month date. Column 3 is the monthly sunspot number, and column 4 is the 'smoothed' monthly sunspot number. This data is available at the Belgium Solar Influences Data Center. Visit their sunspot number archive page for daily and yearly numbers and graphs for data back to 1749.
198501 1985.043 16.5 20.5 198502 1985.123 15.9 19.6 198503 1985.205 17.2 18.6 198504 1985.287 16.2 18.3 198505 1985.372 27.5 18.3 198506 1985.454 24.2 18.0 198507 1985.539 30.7 17.4 198508 1985.624 11.1 17.1 198509 1985.706 3.9 17.3 198510 1985.791 18.6 17.3 198511 1985.873 16.2 16.8 198512 1985.958 17.3 15.3 198601 1986.042 2.5 13.8 198602 1986.122 23.2 13.1 198603 1986.204 15.1 13.0 198604 1986.286 18.5 13.7 198605 1986.371 13.7 14.3 198606 1986.453 1.1 13.8 198607 1986.538 18.1 13.7 198608 1986.623 7.4 13.2 198609 1986.705 3.8 12.3 198610 1986.790 35.4 13.2 198611 1986.872 15.2 14.9 198612 1986.957 6.8 16.3 198701 1987.042 10.4 17.6 198702 1987.121 2.4 19.6 198703 1987.203 14.7 22.1 198704 1987.285 39.6 24.4 198705 1987.370 33.0 26.5 198706 1987.452 17.4 28.4 198707 1987.537 33.0 31.3 198708 1987.622 38.7 34.8 198709 1987.704 33.9 39.0 198710 1987.789 60.6 43.6 198711 1987.871 39.9 46.7 198712 1987.956 27.1 51.3 198801 1988.041 59.0 58.2 198802 1988.123 40.0 64.6 198803 1988.205 76.2 71.3 198804 1988.287 88.0 77.5 198805 1988.372 60.1 83.8 198806 1988.454 101.8 93.7 198807 1988.539 113.8 104.3 198808 1988.624 111.6 113.7 198809 1988.706 120.1 121.2 198810 1988.791 125.1 125.3 198811 1988.873 125.1 130.4 198812 1988.958 179.2 137.6 198901 1989.043 161.3 142.0 198902 1989.123 165.1 145.0 198903 1989.205 131.4 149.7 198904 1989.287 130.6 153.5 198905 1989.372 138.5 156.9 198906 1989.454 196.2 158.4 198907 1989.539 126.9 158.5 198908 1989.624 168.9 157.7 198909 1989.706 176.7 156.6 198910 1989.791 159.4 157.4 198911 1989.873 173.0 157.5 198912 1989.958 165.5 153.5 199001 1990.042 177.3 150.6 199002 1990.122 130.5 152.9 199003 1990.204 140.3 152.0 199004 1990.286 140.3 149.3 199005 1990.371 132.2 147.0 199006 1990.453 105.4 143.8 199007 1990.538 149.4 140.6 199008 1990.623 200.3 140.5 199009 1990.705 125.2 142.1 199010 1990.790 145.5 142.1 199011 1990.872 131.4 141.7 199012 1990.957 129.7 143.9 199101 1991.042 136.9 147.6 199102 1991.121 167.5 147.6 199103 1991.203 141.9 146.6 199104 1991.285 140.0 146.5 199105 1991.370 121.3 145.5 199106 1991.452 169.7 145.2 199107 1991.537 173.7 146.3 199108 1991.622 176.3 146.6 199109 1991.704 125.3 144.9 199110 1991.789 144.1 141.7 199111 1991.871 108.2 138.1 199112 1991.956 144.4 131.7 199201 1992.041 150.0 123.7 199202 1992.123 161.1 115.4 199203 1992.205 106.7 108.2 199204 1992.287 99.8 103.3 199205 1992.372 73.8 100.3 199206 1992.454 65.2 97.1 199207 1992.539 85.7 90.7 199208 1992.624 64.5 84.0 199209 1992.706 63.9 79.5 199210 1992.791 88.7 76.4 199211 1992.873 91.8 74.4 199212 1992.958 82.6 73.2 199301 1993.043 59.3 71.4 199302 1993.123 91.0 69.3 199303 1993.205 69.8 66.6 199304 1993.287 62.2 63.6 199305 1993.372 61.3 59.9 199306 1993.454 49.8 56.1 199307 1993.539 57.9 54.7 199308 1993.624 42.2 52.3 199309 1993.706 22.4 48.4 199310 1993.791 56.4 44.9 199311 1993.873 35.6 41.2 199312 1993.958 48.9 38.4 199401 1994.042 57.8 36.6 199402 1994.122 35.5 34.8 199403 1994.204 31.7 34.1 199404 1994.286 16.1 33.7 199405 1994.371 17.8 32.5 199406 1994.453 28.0 30.8 199407 1994.538 35.1 28.5 199408 1994.623 22.5 26.8 199409 1994.705 25.7 26.6 199410 1994.790 44.0 26.5 199411 1994.872 18.0 26.2 199412 1994.957 26.2 25.6 199501 1995.042 24.2 24.2 199502 1995.121 29.9 23.0 199503 1995.203 31.1 22.1 199504 1995.285 14.0 20.6 199505 1995.370 14.5 19.2 199506 1995.452 15.6 18.2 199507 1995.537 14.5 17.0 199508 1995.622 14.3 15.4 199509 1995.704 11.8 13.4 199510 1995.789 21.1 12.1 199511 1995.871 9.0 11.3 199512 1995.956 10.0 10.8 199601 1996.041 11.5 10.4 199602 1996.123 4.4 10.1 199603 1996.205 9.2 9.7 199604 1996.287 4.8 8.5 199605 1996.372 5.5 8.0 199606 1996.454 11.8 8.5 199607 1996.539 8.2 8.4 199608 1996.624 14.4 8.3 199609 1996.706 1.6 8.4 199610 1996.791 .9 8.8 199611 1996.873 17.9 9.8 199612 1996.958 13.3 10.4 199701 1997.043 5.7 10.5 199702 1997.123 7.6 11.0 199703 1997.205 8.7 13.5 199704 1997.287 15.5 16.5 199705 1997.372 18.5 18.4 199706 1997.454 12.7 20.4 199707 1997.539 10.4 22.7 199708 1997.624 24.4 25.1 199709 1997.706 51.3 28.4 199710 1997.791 23.8 31.9 199711 1997.873 39.0 35.1 199712 1997.958 41.2 39.0 199801 1998.042 31.9 43.8 199802 1998.122 40.3 49.0 199803 1998.204 54.8 53.5 199804 1998.286 53.4 56.6 199805 1998.371 56.3 59.4 199806 1998.453 70.7 62.5 199807 1998.538 66.6 65.5 199808 1998.623 92.2 67.8 199809 1998.705 92.9 69.5 199810 1998.790 55.5 70.5 199811 1998.872 74.0 73.0 199812 1998.957 81.9 77.9 199901 1999.042 62.0 82.6 199902 1999.121 66.3 84.6 199903 1999.203 68.8 83.8 199904 1999.285 63.7 85.5 199905 1999.370 106.4 90.5 199906 1999.452 137.7 93.1 199907 1999.537 113.5 94.4 * 199908 1999.622 93.7 97.4 * 199909 1999.704 71.5 102.3 * 199910 1999.789 116.7 107.7 * 199911 1999.871 133.2 199912 1999.956 84.6 200001 2000.041 90.2 * 200002 2000.123 112.3 * 200003 2000.205 138.2 * 200004 2000.287 125.3 *
Copyright 1997 Dr. Sten Odenwald
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