One of the dangers
of budgeting your monthly household expenses is that some
of them fluctuate over time. If you make your budget based
on summertime electricity usage, but in the winter it goes
up four times because you are heating your house, you have
inadvertantly sabotaged your budgeting, unless you have taken
the added winter expenses into account. Likewise, if you live
in a hot climate, the summer electricity bill could skyrocket
if you are using your air conditioner 24 hours a day.
When you sit down
to do your monthly budget, be sure to take into account fluctuations.
If you do not have your previous months bills, simply contact
the utility company in question and ask for your yearly average
per month or the totals of the previous twelve months. That
way there won't be any surprises.
To average out
your monthly expense for each, simply add up the previous
12 months bill totals, and divide by 12 to get the average
you spend per month.