Also, if you know of a specific address the utility company can tell you the last 12 months averages.
Depending on square footage, windows, mechanical efficiency ratings, insulation, when/how the house was built etc... will depend on cost.
Xcel = gas $40 to $50 per month
City of Longmont provides electric, water, sewer, trash pick up
trash = $14.28 per month
Sewer = $7 to $10 per month
Water = $12.40 base per month. Summer usage will increase that in direct proportion to lot size and landscaping. Our personal bill runs much higher.
Electric = $45 $60 per month. Air conditioning will also bump that amount higher if owners prefer very cool home.
You actually want to ask this question of the individual sellers, who should keep a copy of a utility bill next to the agent's flyer.
By the way, ask about energy star appliances if appliances are being rolled in with a home sale.
And isn't great that these questions are accessible three years later!