Degree board / county
Mercer County
Heating degree days from Lima, the nearest of Base 65's reference stations (55 km from the county's center). When it misses a day, Fort Wayne (IN) (69 km) fills in.
Season so far337degree days, Jul 1 to Nov 4
Normal to date53637% warmer than normal
Last 7 days43normal for the week: 123
A normal year5,769degree days in a normal year (NOAA 1991-2020 daily normals, summed)
Month by month, season 2026-27
| Month | Jul | Aug | Sep | Oct | Nov | Dec | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Normal | 3 | 9 | 89 | 362 | 693 | 1,020 | 1,175 | 984 | 805 | 435 | 169 | 25 |
| Observed | 4 | 5 | 65 | 248 | 17* | – | – | – | – | – | – | – |
* month in progress.
The last two weeks
| Day | High | Low | Degree days | Normal | Source |
|---|---|---|---|---|---|
| Wed Nov 4 | 70° | 58° | 1.0 | 18.7 | Lima |
| Tue Nov 3 | 73° | 58° | 0.0 | 18.3 | Lima |
| Mon Nov 2 | 58° | 52° | 10.0 | 17.9 | Lima |
| Sun Nov 1 | 68° | 51° | 5.5 | 17.5 | Lima |
| Sat Oct 31 | 58° | 50° | 11.0 | 17.1 | Lima |
| Fri Oct 30 | 64° | 39° | 13.5 | 16.7 | Lima |
| Thu Oct 29 | 77° | 49° | 2.0 | 16.3 | Lima |
| Wed Oct 28 | 74° | 51° | 2.5 | 15.9 | Lima |
| Tue Oct 27 | 72° | 47° | 5.5 | 15.5 | Lima |
| Mon Oct 26 | 73° | 43° | 7.0 | 15.2 | Lima |
| Sun Oct 25 | 70° | 37° | 11.5 | 14.8 | Lima |
| Sat Oct 24 | 68° | 36° | 13.0 | 14.4 | Lima |
| Fri Oct 23 | 67° | 37° | 13.0 | 14.1 | Lima |
| Thu Oct 22 | 68° | 35° | 13.5 | 13.7 | Lima |
Heat a home in Mercer County? Put two of your bills against this weather and see the season's cost, month by month.