I doubt the temp was in centegrade (Celsius). Because the high was 47 and the low was 42. That would equate to the high being about 120 degrees...in Fahrenheit.
Recall she herself said that it wasn't for "love". She felt she had been exploited for years and now was the time to get what was coming to her. Don't forget he drove a Rolls-Royce, went to New York, Paris and
other place on wine-foraging trips, spent money like a drunken sailor.....all this is better than the $200 a week she had been getting up to that time.