Not sure what to say, but it's been consistently that for years. No candles, no river washing. Maybe our meter is treating us right.
I average right around 20kWh/day ~600/mo and could still curtail my electric usage substantially... I have an old cheapie electric water heater, a second freezer (just a old inexpensive craigslist find), electric oven and range, and plenty of incandescent lights still and forget to shut the computer off often, 4-6 fans running on this house all heating season to attempt to circulate the heat in this ill-designed house. Only 1.5 living here though.