According to the Monroe surface site archive, 3 days of snow was recorded, beginning on 7 January 1971. Measurable snow stayed on the ground the following two days before it melted. So it seems reasonable these photos might be from the 7-9 January 1971 time period. (Information courtesy of Todd Murphy, Ph.D)
The Student Union Building is pictured in the photo.
weather, snow, recreation, campus buildings