Taking just the 20th and 21st centuries, the 1st of February is on a Sunday in 1903, 1914, 1920, 1925, 1931, 1942, 1948, 1953, 1959, 1970, 1976, 1981, 1987, 1998, 2004, 2009, 2015, 2026, 2032, 2037, 2043, 2054, 2060, 2065, 2071, 2082, 2088, 2093 and 2099.
January 1 1989 fell on a Sunday. The first year after that to have January 1 fall on a Sunday is 1995. The next year after the current year to have January 1 fall on a Sunday is 2012.
August 1 will next fall on a Sunday in 2021.
2015
2009
2012! this year!
year 2017
because it's always on a Sunday and Feb 1 is a Sunday this year, and they always give 2 weeks between the championship game and the superbowl.
2002
2012
The last time 1 July fell on a Sunday was in 2007.
Sunday
February 1st, 1947 fell on a Saturday. The following year it fell on a Sunday.