How do I enter the Degree Symbol ("°") into a WIMS Variable's Unit, or display in a Spread Report/Custom Data Entry Form?

Hold down your Alt key and using your numeric keypad type 248.  

NOTES:

The Degree Symbol is ASCII Character 248.  There are several other characters you may need such as:

Alt 171: ½
Alt 172: ¼
Alt 228: Σ
Alt 230: µ (microgram per liter, ie µg/L)
Alt 248: °
Alt 251: √ ✔(check symbol)
Alt 234: Ω (Ohms, Omega)

ASCII Characters 1-127.  Hold down Alt and enter the Decimal (Dec) number:

Extended ASCII Characters: