env.workspace = "R:/Dawson, Monique/Canada_Weather_Grid"
env.workspace = "R:\\Dawson, Monique\\Canada_Weather_Grid"
env.workspace = r"R:\Dawson, Monique\Canada_Weather_Grid"
Struggle with this almost the entire day... just found this answer and option #3 worked like a charm. Thanks! Lives will be saved on my ride home today!
Filenames and file paths in Python
Read it when you get home... your safe journey has other stumbling blocks...
Please also see this tool:
http://www.arcgis.com/home/item.html?id=da1540fb59d84b7cb02627856f65a98d
Regards