Wilmington weather in December: Wilmington, Ohio: normal highs, lows, rain and records for December
Wilmington in December has a normal high of 41°F and a normal low of 27°F, a daily mean of 34°F, falling from 46°F on the 1st to 38°F by the 31st. Measurable precipitation falls on 13 days in a normal December, 3.18 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 5°C and low of −3°C, 81 mm of precipitation in December.
- NOAA stationWilmington Air Park
- Station IDUSW00013841
- Location39.42°N 83.82°W
- Elevation1,056 ft (322 m)
- Population12,639
- Jan 37° 21°
- Feb 41° 24°
- Mar 51° 32°
- Apr 64° 42°
- May 73° 52°
- Jun 82° 60°
- Jul 84° 63°
- Aug 83° 61°
- Sep 77° 54°
- Oct 65° 44°
- Nov 52° 34°
- Dec 41° 27°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Wilmington in December?
The normal high is 41°F and the normal low 27°F, for a daily mean of 34.0°F. December is 8.9°F cooler than November and 4.9°F warmer than January. December is the 10th warmest month of the year in Wilmington and the 7th wettest. Across the month the normal high falls 8°F, from 46°F on December 1 to 38°F on December 31. From one year to the next December's mean temperature typically moves about 4.5°F either way (NOAA's standard deviation), so roughly two Decembers in three average between 30°F and 39°F.
Bars above: each day's normal high to low. Columns below: the chance of 0.01 inch or more of precipitation that day, on a scale of 0 to 100% (highest 42%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| December 1 | 46°F | 30°F | 40% | 23% |
| December 8 | 44°F | 29°F | 41% | 23% |
| December 15 | 41°F | 27°F | 42% | 24% |
| December 22 | 39°F | 26°F | 42% | 23% |
| December 31 | 38°F | 24°F | 42% | 22% |
Every day of December: normal high, low and chance of precipitation (warmest afternoon December 1, coldest night December 31)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| December 1 | 46°F | 30°F | 40% | 23% | 9 h 40 min |
| December 2 | 46°F | 30°F | 40% | 23% | 9 h 40 min |
| December 3 | 45°F | 30°F | 41% | 23% | 9 h 30 min |
| December 4 | 45°F | 29°F | 41% | 23% | 9 h 30 min |
| December 5 | 45°F | 29°F | 41% | 23% | 9 h 30 min |
| December 6 | 44°F | 29°F | 41% | 23% | 9 h 30 min |
| December 7 | 44°F | 29°F | 41% | 23% | 9 h 30 min |
| December 8 | 44°F | 29°F | 41% | 23% | 9 h 30 min |
| December 9 | 43°F | 28°F | 42% | 23% | 9 h 30 min |
| December 10 | 43°F | 28°F | 42% | 24% | 9 h 30 min |
| December 11 | 43°F | 28°F | 42% | 24% | 9 h 30 min |
| December 12 | 42°F | 28°F | 42% | 24% | 9 h 30 min |
| December 13 | 42°F | 28°F | 42% | 24% | 9 h 30 min |
| December 14 | 42°F | 27°F | 42% | 24% | 9 h 30 min |
| December 15 | 41°F | 27°F | 42% | 24% | 9 h 20 min |
| December 16 | 41°F | 27°F | 42% | 24% | 9 h 20 min |
| December 17 | 41°F | 27°F | 42% | 24% | 9 h 20 min |
| December 18 | 41°F | 26°F | 42% | 24% | 9 h 20 min |
| December 19 | 40°F | 26°F | 42% | 24% | 9 h 20 min |
| December 20 | 40°F | 26°F | 42% | 24% | 9 h 20 min |
| December 21 | 40°F | 26°F | 42% | 24% | 9 h 20 min |
| December 22 | 39°F | 26°F | 42% | 23% | 9 h 20 min |
| December 23 | 39°F | 25°F | 42% | 23% | 9 h 20 min |
| December 24 | 39°F | 25°F | 42% | 23% | 9 h 20 min |
| December 25 | 39°F | 25°F | 42% | 23% | 9 h 20 min |
| December 26 | 39°F | 25°F | 42% | 23% | 9 h 20 min |
| December 27 | 38°F | 24°F | 42% | 23% | 9 h 20 min |
| December 28 | 38°F | 24°F | 42% | 22% | 9 h 20 min |
| December 29 | 38°F | 24°F | 42% | 22% | 9 h 20 min |
| December 30 | 38°F | 24°F | 42% | 22% | 9 h 30 min |
| December 31 | 38°F | 24°F | 42% | 22% | 9 h 30 min |
- Normal high
- 41°FDecember average
- Normal low
- 27°FDecember average
- Precipitation
- 3.18 inmonth total
- Days with precipitation
- 130.01 inch or more
- Nights at 32°F or colder
- 22
- Daylight
- 9 h 40 min to 9 h 30 minDecember 1 to December 31
- Sunshine
- 57%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00013841; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Wilmington in December?
On a given December day the chance of 0.01 inch or more is 42% on average, highest around December 17 (42%). In all, 3.18 in falls on 13 days of a normal December, 1 of them with an inch or more.
In a normal December in Wilmington, 22 nights fall to freezing and 8 days stay below freezing all day.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00013841.
What are the records for December in Wilmington?
The warmest December temperature on Wilmington's official record (since 1917) is 73°F, on December 4, 1982; the coldest is −24°F, on December 22, 1989. The wettest December brought 10.49 in (1923); the snowiest, 25.7 inches (1935).
The December mean against the 1991-2020 normal of 34.0°F: 2021 42.7°F (+8.7), 2022 35.7°F (+1.7), 2023 42.8°F (+8.8), 2024 37.5°F (+3.5), 2025 31.7°F (−2.3). 4 of 5 ran warmer than normal.
| December | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 42.7°F | +8.7°F | 3.43 in |
| 2022 | 35.7°F | +1.7°F | 1.96 in |
| 2023 | 42.8°F | +8.8°F | 2.95 in |
| 2024 | 37.5°F | +3.5°F | 4.52 in |
| 2025 | 31.7°F | −2.3°F | 2.76 in |
Source: records: ACIS, NWS threaded record ILNthr; recent months: ACIS, station USW00013841. Records and recent months use complete months only.
How does December in Wilmington compare across Ohio?
Across the 99 places PlainClimate covers in Ohio, December normal highs run from 36°F in Montpelier to 46°F in Portsmouth; Wilmington's is 41°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.