Newark weather in December: Newark, Delaware: normal highs, lows, rain and records for December
Newark in December has a normal high of 47°F and a normal low of 30°F, a daily mean of 38°F, falling from 51°F on the 1st to 44°F by the 31st. Measurable precipitation falls on 10 days in a normal December, 4.04 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 8°C and low of −1°C, 103 mm of precipitation in December.
- NOAA stationNewark Agricultural Farm
- Station IDUSC00076410
- Location39.67°N 75.75°W
- Elevation106 ft (32 m)
- From the centerunder 1 mile
- Population30,506
- Jan 43° 25°
- Feb 46° 25°
- Mar 54° 33°
- Apr 67° 42°
- May 76° 52°
- Jun 84° 62°
- Jul 89° 66°
- Aug 87° 65°
- Sep 79° 58°
- Oct 69° 46°
- Nov 57° 36°
- Dec 47° 30°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Newark in December?
The normal high is 47°F and the normal low 30°F, for a daily mean of 38.4°F. December is 8.0°F cooler than November and 4.6°F warmer than January. December is the 10th warmest month of the year in Newark and the 4th wettest. Across the month the normal high falls 7°F, from 51°F on December 1 to 44°F on December 31. From one year to the next December's mean temperature typically moves about 3.9°F either way (NOAA's standard deviation), so roughly two Decembers in three average between 35°F and 42°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 33%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| December 1 | 51°F | 32°F | 30% | 22% |
| December 8 | 49°F | 31°F | 32% | 23% |
| December 15 | 47°F | 30°F | 33% | 23% |
| December 22 | 45°F | 29°F | 32% | 22% |
| December 31 | 44°F | 27°F | 32% | 21% |
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 | 51°F | 32°F | 30% | 22% | 9 h 40 min |
| December 2 | 51°F | 32°F | 31% | 22% | 9 h 30 min |
| December 3 | 50°F | 32°F | 31% | 22% | 9 h 30 min |
| December 4 | 50°F | 32°F | 31% | 22% | 9 h 30 min |
| December 5 | 50°F | 32°F | 31% | 23% | 9 h 30 min |
| December 6 | 50°F | 32°F | 32% | 23% | 9 h 30 min |
| December 7 | 49°F | 31°F | 32% | 23% | 9 h 30 min |
| December 8 | 49°F | 31°F | 32% | 23% | 9 h 30 min |
| December 9 | 49°F | 31°F | 32% | 23% | 9 h 30 min |
| December 10 | 48°F | 31°F | 32% | 23% | 9 h 30 min |
| December 11 | 48°F | 31°F | 32% | 23% | 9 h 30 min |
| December 12 | 48°F | 31°F | 32% | 23% | 9 h 30 min |
| December 13 | 48°F | 30°F | 32% | 23% | 9 h 20 min |
| December 14 | 47°F | 30°F | 32% | 23% | 9 h 20 min |
| December 15 | 47°F | 30°F | 33% | 23% | 9 h 20 min |
| December 16 | 47°F | 30°F | 33% | 23% | 9 h 20 min |
| December 17 | 47°F | 30°F | 33% | 23% | 9 h 20 min |
| December 18 | 46°F | 29°F | 32% | 22% | 9 h 20 min |
| December 19 | 46°F | 29°F | 32% | 22% | 9 h 20 min |
| December 20 | 46°F | 29°F | 32% | 22% | 9 h 20 min |
| December 21 | 46°F | 29°F | 32% | 22% | 9 h 20 min |
| December 22 | 45°F | 29°F | 32% | 22% | 9 h 20 min |
| December 23 | 45°F | 29°F | 32% | 22% | 9 h 20 min |
| December 24 | 45°F | 28°F | 32% | 21% | 9 h 20 min |
| December 25 | 45°F | 28°F | 32% | 21% | 9 h 20 min |
| December 26 | 45°F | 28°F | 32% | 21% | 9 h 20 min |
| December 27 | 44°F | 28°F | 32% | 21% | 9 h 20 min |
| December 28 | 44°F | 28°F | 32% | 21% | 9 h 20 min |
| December 29 | 44°F | 28°F | 32% | 21% | 9 h 20 min |
| December 30 | 44°F | 27°F | 32% | 21% | 9 h 20 min |
| December 31 | 44°F | 27°F | 32% | 21% | 9 h 20 min |
- Normal high
- 47°FDecember average
- Normal low
- 30°FDecember average
- Precipitation
- 4.04 inmonth total
- Days with precipitation
- 100.01 inch or more
- Nights at 32°F or colder
- 21
- Daylight
- 9 h 40 min to 9 h 20 minDecember 1 to December 31
- Sunshine
- 68%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USC00076410; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Newark in December?
On a given December day the chance of 0.01 inch or more is 32% on average, highest around December 15 (33%). In all, 4.04 in falls on 10 days of a normal December, 1 of them with an inch or more.
In a normal December in Newark, 21 nights fall to freezing and 2 days stay below freezing all day.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USC00076410.
What are the records for December in Newark?
The warmest December temperature on this station's record (since 1894) is 74°F, on December 29, 1984; the coldest is −6°F, on December 25, 1983. The wettest December brought 8.89 in (1983); the snowiest, 16.5 inches (1966).
The December mean against the 1991-2020 normal of 38.4°F: 2021 41.8°F (+3.4), 2022 35.2°F (−3.2), 2023 41.0°F (+2.6), 2024 36.3°F (−2.1), 2025 31.8°F (−6.6). 2 of 5 ran warmer than normal.
| December | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 41.8°F | +3.4°F | 1.23 in |
| 2022 | 35.2°F | −3.2°F | 5.29 in |
| 2023 | 41.0°F | +2.6°F | 8.26 in |
| 2024 | 36.3°F | −2.1°F | 3.59 in |
| 2025 | 31.8°F | −6.6°F | 2.67 in |
Source: records: ACIS, station USC00076410; recent months: ACIS, station USC00076410. Records and recent months use complete months only.
How does December in Newark compare across Delaware?
Across the 6 places PlainClimate covers in Delaware, December normal highs run from 46°F in Wilmington to 50°F in Georgetown; Newark's is 47°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.