Many tract homes in the 50s did not have room for a dryer if they were built on slabs, just a washer usually located in the kitchen, one reason for combos. Many women stayed home so they had more time to devote to hanging out laundry in nice weather. Homes that had basements had space to hang a washer load a day in the winter and with the furnace running, they dried early enough that our mom could take them down after we got home from school so that we could roller skate in the basement. Dryers began to make inroads as families became more affluent and as women began to work more outside of the home. What really cinched a place for dryers was the improved Wash and Wear called Permanent Press. The dryer actually saved on ironing and no matter how light a burden hanging laundry was, ironing was something many people did not enjoy. Dryers were more prevalent earlier in more affluent areas. Conversely, in areas where domestic help was cheap, the wife was less involved in laundering so there was less need for a dryer.
Maybe in South Dakota, women got by with hanging laundry to dry in the basement when they could not go outside, although I remember my mother bringing in freeze-dried laundry during the winter in Illinois. In Georgia, we had lots of rain during the winter and that was when laundry was hung in the basement to dry; otherwise mom put on a scarf and coat and hung stuff outside to dry. She fought having a dryer for a long time, but we finally had our first by 1961 or so.