The patient's temperature was 98.1 degrees (I'm assuming Farenheit because the patient would be dead if were Celcius). But I agree, it is a little confusing and I've never seen it written out like that.
I'm familiar with the notation of writing decimal points small like that, but I haven't seen anyone put the degree symbol after it. Weird.
My guess is it indicates that the temperature was taken orally (o) as opposed to axillary, tympanically or rectally.
The patient is the sun. 98^(10) F!
I'm more surprised it isn't in Celsius (if the charting is done electronically).
My nurses write it like that but in the EHR it shows as 98.1F.