Like Wayne, when I lived in FL I was paying about 10 cents/KWH (but they went up again just before I moved - hurricane damage). My worst summer bill was $480, the least winter bill was about $240. Average was something like $350/mo. Pool pump, split A/C w/heater coils, hot water heater, dishwasher, washer, dryer, 10-12 PCs, UPS, bunch of lights and HA gear, etc. - family of 4-5. Le'ts see, that averages to about 3500KWH/month? Holy crap! Most of the consumption was A/C.
Now here in Maine I'm paying about 14 cents per KWH, bills are running about $110, and I'm using around 800KWH/month. Oil furnace and water heater, washer, dryer, dishwasher, 10-12 PCs, UPS, lighting, street light for yard, only 1-2 ppl here now.
Glad I'm not paying upwards of $1-2/KWH like someplaces in CA!
BTW, my mom pays about $35/mo. in her apartment.