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Weather in Wilmington, Delaware for December 2026

Your guide to Wilmington weather in December - trends and predictions

    Snow Forecast ❄️

  • With an average of 4 snowy days, Wilmington usually enjoys a light touch of snow in December.

  • Temperatures

  • In general, the average temperature in Wilmington at the beginning of December is 3 °F. As the month progressed, temperatures tended to moderately fall, reaching an average of 1.9 °F by the end of December.

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Average dry days
24
Dry days
Average rainy days
3
Rainy days
Average snowy days
4
Snow days
Average temperatures
3°/-3°
Temperatures
Average wind speed
20 km/h
Avg max wind
Average humidity
76 %
Avg humidity

Wilmington Weather December

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Temperatures trend during December in Wilmington

See the weather trend as well as the moving average line

December weather in Wilmington day by day

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Date Weather Temperatures Rain Snow More
Dec. 1 Sunny
Sunny
3° /-1° 0 mm 0 cm
Dec. 2 Heavy rain
Heavy rain
3° /0° 100.8 mm 0 cm
Dec. 3 Sunny
Sunny
4° /-2° 0 mm 0 cm
Dec. 4 Mist
Mist
6° /-2° 0 mm 0 cm
Dec. 5 Patchy moderate snow
Patchy moderate snow
0° /-5° 3.3 mm 2.4 cm
Dec. 6 Overcast
Overcast
3° /-1° 0 mm 0 cm
Dec. 7 Mist
Mist
2° /-3° 0 mm 0 cm
Dec. 8 Overcast
Overcast
0° /-2° 0 mm 0 cm
Dec. 9 Partly cloudy
Partly cloudy
2° /-6° 0 mm 0 cm
Dec. 10 Overcast
Overcast
4° /0° 0 mm 0 cm
Dec. 11 Partly cloudy
Partly cloudy
1° /-2° 0 mm 0 cm
Dec. 12 Overcast
Overcast
1° /-2° 0 mm 0 cm
Dec. 13 Overcast
Overcast
3° /-3° 0 mm 0 cm
Dec. 14 Heavy snow
Heavy snow
1° /-4° 20.2 mm 13.4 cm
Dec. 15 Overcast
Overcast
-1° /-7° 0 mm 0 cm
Dec. 16 Cloudy
Cloudy
1° /-4° 0 mm 0 cm
Dec. 17 Overcast
Overcast
4° /-2° 0 mm 0 cm
Dec. 18 Fog
Fog
7° /-4° 0 mm 0 cm
Dec. 19 Moderate or heavy rain with thunder
Moderate or heavy rain with thunder
12° /-1° 49.3 mm 0 cm
Dec. 20 Overcast
Overcast
0° /-4° 0 mm 0 cm
Dec. 21 Overcast
Overcast
5° /-2° 0 mm 0 cm
Dec. 22 Partly cloudy
Partly cloudy
1° /-4° 0 mm 0 cm
Dec. 23 Mist
Mist
2° /0° 0 mm 0 cm
Dec. 24 Overcast
Overcast
6° /1° 0 mm 0 cm
Dec. 25 Overcast
Overcast
2° /0° 0 mm 0 cm
Dec. 26 Overcast
Overcast
-1° /-5° 2 mm 1.5 cm
Dec. 27 Mist
Mist
0° /-1° 15.5 mm 8.1 cm
Dec. 28 Mist
Mist
0° /-5° 0 mm 0 cm
Dec. 29 Moderate rain at times
Moderate rain at times
10° /0° 3.2 mm 0 cm
Dec. 30 Overcast
Overcast
0° /-3° 0 mm 0 cm
Dec. 31 Overcast
Overcast
2° /-4° 0 mm 0 cm
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Important Notice
Our weather forecast for Wilmington in December is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Wilmington forecast closer to your planned date for the most up-to-date weather information.

Wilmington in December - FAQ

What are the expected maximum and minimum temperatures in Wilmington during December?

Brace for cold days with temperatures not exceeding 3° and nights that are likely to be freezing. Winter clothing is essential for comfort and safety.

How much rainfall should be expected in Wilmington during December?

Significant rainfall exceeding 194.3 mm is expected in Wilmington during December, occurring over more than 3 days. Preparing for wet conditions is recommended in your planning.

Will it snow in Wilmington in December 2026?

Wilmington experiences an average snowfall of 25.3 cm during December, occurring over 4 days.

What are the typical wind conditions in Wilmington during December?

The average wind speed in Wilmington during December is 20 km/h, suggesting breezy to windy conditions, depending on your activities.

Wilmington snow forecast December 2026

Track daily snowfall levels and discover Wilmington’s snowy potential this December ❄️
On average, Wilmington sees 4 snowy days during December, with approximately 25.3 cm of total snowfall.

December rainfall patterns in Wilmington

Explore the daily rainfall trends and prepare for Wilmingtons December weather 💧
Typically, Wilmington has 3 rainy days in December with a total of 194.3 mm of rainfall.

Quick links

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Location coordinates Where is Wilmington?

Get accurate weather forecasts for Wilmington, located at latitude 39.746 and longitude -75.547. Stay updated with localized weather information tailored for Wilmington.

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