Heating season 2026-27 · all 88 Ohio counties
Ohio's heating season, counted by the degree.
Base 65 tracks how much heating weather each county has had since July 1, against the 30-year normal. Then it turns two of your own gas, propane, oil or electric bills into a month-by-month heating budget for the winter ahead.
Work out my winter See all 88 counties
Free to use. The Bill Book Pass is $1.95 a month or $19.50 a year, free during preview.
Season so far, Jul 1 to Nov 4320degree days, county average
Normal to date519NOAA 1991-2020 normals
Against normal38% warmerthan normal: 0 counties colder, 88 warmer
Ohio county average, day by day since July 1: 8 days colder than their normal, 36 warmer, 83 within 1.5 degree days of it.
- 45%+ colder
- 30-44% colder
- 15-29% colder
- 4-14% colder
- within 3%
- 4-14% warmer
- 15-29% warmer
- 30-44% warmer
- 45%+ warmer
Every county against its own normal
Each county reads the nearest of 38 airport weather stations and is compared with that station's NOAA 1991-2020 normal for the same dates. Blue counties have had more heating weather than normal so far; ember counties less.
A degree day, in one line
65°F is the standard base: a day that averages 40°F counts 25 heating degree days; a 70°F day counts none. Many homes start to need heat around that temperature (well-insulated ones a little lower), and over a winter a furnace or boiler's fuel follows the degree days closely: twice the degree days, about twice the heating fuel. A heat pump uses more electricity per degree day in deep cold (see Method).
How Base 65 works
- 1
We count the weather
Every day, the high and low at 38 airport weather stations in and around Ohio become heating degree days for each county's nearest station, set against NOAA's 1991-2020 normals.
- 2
Your bills set two numbers
From the meter-read dates and amounts on your bills: how much fuel the home uses per degree day, and how much it uses anyway (hot water, cooking, a dryer).
- 3
The season, month by month
Those two numbers times each month's degree days, times your own price, plus the customer charge: the season's cost, the even monthly figure for a budget plan, and what a colder winter would add.
The Bill Book keeps it going all winter
Keep every bill on a private link: no account, no email. Each bill is checked against its own weather, so a cold January does not look like a problem and a mild one does not hide one.
- Weather-adjusted use per bill: did this bill use more than its weather explains?
- This season against last, per degree day
- Propane and oil: a tank clock that says when the tank reaches your refill level
- CSV download of every bill with its degree days
Prices
$19.50/year
Free during preview: checkout is not switched on yet, so every Bill Book has the Pass features and nothing can be charged.