Westerville weather in December: Westerville, Ohio: normal highs, lows, rain and records for December
Westerville in December has a normal high of 42°F and a normal low of 27°F, a daily mean of 35°F, falling from 47°F on the 1st to 39°F by the 31st. Measurable precipitation falls on 13 days in a normal December, 3.05 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 6°C and low of −3°C, 77 mm of precipitation and 9 cm of snow in December.
- NOAA stationWesterville
- Station IDUSC00338951
- Location40.13°N 82.94°W
- Elevation802 ft (244 m)
- From the center2 miles
- Population38,612
- Jan 38° 22°
- Feb 42° 24°
- Mar 53° 32°
- Apr 66° 42°
- May 76° 52°
- Jun 83° 61°
- Jul 86° 65°
- Aug 85° 63°
- Sep 79° 56°
- Oct 67° 45°
- Nov 53° 35°
- Dec 42° 27°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Westerville in December?
The normal high is 42°F and the normal low 27°F, for a daily mean of 34.6°F. December is 9.6°F cooler than November and 4.7°F warmer than January. December is the 10th warmest month of the year in Westerville and the 8th wettest. Across the month the normal high falls 8°F, from 47°F on December 1 to 39°F on December 31. From one year to the next December's mean temperature typically moves about 4.6°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 43%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| December 1 | 47°F | 31°F | 39% | 22% |
| December 8 | 44°F | 29°F | 40% | 22% |
| December 15 | 42°F | 27°F | 41% | 23% |
| December 22 | 40°F | 26°F | 42% | 23% |
| December 31 | 39°F | 24°F | 43% | 23% |
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 | 47°F | 31°F | 39% | 22% | 9 h 30 min |
| December 2 | 46°F | 30°F | 39% | 22% | 9 h 30 min |
| December 3 | 46°F | 30°F | 40% | 22% | 9 h 30 min |
| December 4 | 46°F | 30°F | 40% | 22% | 9 h 30 min |
| December 5 | 45°F | 29°F | 40% | 22% | 9 h 30 min |
| December 6 | 45°F | 29°F | 40% | 22% | 9 h 30 min |
| December 7 | 45°F | 29°F | 40% | 22% | 9 h 30 min |
| December 8 | 44°F | 29°F | 40% | 22% | 9 h 30 min |
| December 9 | 44°F | 29°F | 40% | 22% | 9 h 20 min |
| December 10 | 44°F | 28°F | 40% | 22% | 9 h 20 min |
| December 11 | 43°F | 28°F | 40% | 22% | 9 h 20 min |
| December 12 | 43°F | 28°F | 41% | 22% | 9 h 20 min |
| December 13 | 43°F | 28°F | 41% | 22% | 9 h 20 min |
| December 14 | 42°F | 27°F | 41% | 23% | 9 h 20 min |
| December 15 | 42°F | 27°F | 41% | 23% | 9 h 20 min |
| December 16 | 42°F | 27°F | 41% | 23% | 9 h 20 min |
| December 17 | 42°F | 27°F | 41% | 23% | 9 h 20 min |
| December 18 | 41°F | 27°F | 41% | 23% | 9 h 20 min |
| December 19 | 41°F | 26°F | 41% | 23% | 9 h 20 min |
| December 20 | 41°F | 26°F | 41% | 23% | 9 h 20 min |
| December 21 | 41°F | 26°F | 42% | 23% | 9 h 20 min |
| December 22 | 40°F | 26°F | 42% | 23% | 9 h 20 min |
| December 23 | 40°F | 25°F | 42% | 23% | 9 h 20 min |
| December 24 | 40°F | 25°F | 42% | 23% | 9 h 20 min |
| December 25 | 40°F | 25°F | 42% | 23% | 9 h 20 min |
| December 26 | 39°F | 25°F | 42% | 23% | 9 h 20 min |
| December 27 | 39°F | 25°F | 42% | 23% | 9 h 20 min |
| December 28 | 39°F | 25°F | 42% | 23% | 9 h 20 min |
| December 29 | 39°F | 24°F | 42% | 23% | 9 h 20 min |
| December 30 | 39°F | 24°F | 43% | 23% | 9 h 20 min |
| December 31 | 39°F | 24°F | 43% | 23% | 9 h 20 min |
- Normal high
- 42°FDecember average
- Normal low
- 27°FDecember average
- Precipitation
- 3.05 inmonth total
- Days with precipitation
- 130.01 inch or more
- Snowfall
- 3.4 inmonth total
- Nights at 32°F or colder
- 23
- Daylight
- 9 h 30 min to 9 h 20 minDecember 1 to December 31
- Sunshine
- 54%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USC00338951; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain or snow in Westerville in December?
On a given December day the chance of 0.01 inch or more is 41% on average, highest around December 31 (43%). In all, 3.05 in falls on 13 days of a normal December, 1 of them with an inch or more.
In a normal December in Westerville, 23 nights fall to freezing, 7 days stay below freezing all day and snowfall averages 3.4 inches.
Snow falls on 3 days in a normal December, and an inch or more covers the ground on 5 days.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USC00338951.
What are the records for December in Westerville?
The warmest December temperature on this station's record (since 1897) is 76°F, on December 3, 1982; the coldest is −25°F, on December 22, 1989. The wettest December brought 7.25 in (1990); the snowiest, 11.4 inches (1960).
The December mean against the 1991-2020 normal of 34.6°F: 2021 41.7°F (+7.1), 2022 33.8°F (−0.8), 2023 41.0°F (+6.4), 2024 36.5°F (+1.9), 2025 31.2°F (−3.4). 3 of 5 ran warmer than normal.
| December | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 41.7°F | +7.1°F | 3.83 in |
| 2022 | 33.8°F | −0.8°F | 1.72 in |
| 2023 | 41.0°F | +6.4°F | 2.28 in |
| 2024 | 36.5°F | +1.9°F | 4.35 in |
| 2025 | 31.2°F | −3.4°F | 2.05 in |
Source: records: ACIS, station USC00338951; recent months: ACIS, station USC00338951. Records and recent months use complete months only.
How does December in Westerville 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; Westerville's is 42°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.