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Weather in Delaware for December 2025

Your guide to Delaware weather in December - trends and predictions

    Snow Forecast ❄️

  • With an average of 2 snowy days, Delaware usually enjoys a light touch of snow in December.
    According to Delaware snow forecast for December 2025, 2 snowy days are expected until the end of the month. The closest date with snow is Saturday, December 27.

    • Temperatures

  • Until now, December 2025 in Delaware is cooler than usual, with temperatures averaging 2.1 °F, this is -3.4 °F below the typical seasonal average.

  • The forecast for the next days in Delaware predicts temperatures to be around 6 °F, close to the historical average.

  • In general, the average temperature in Delaware at the beginning of December is 5.4 °F. As the month progressed, temperatures tended to moderately fall, reaching an average of 4.7 °F by the end of December.

    • Rain 🌧️

  • The climate of Delaware in December is notably wet, with an average of 12 rainy days, and a total of 215.9 mm of precipitation.

    • More

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Average dry days
17
Dry days
Average rainy days
12
Rainy days
Average snowy days
2
Snow days
Average temperatures
7°/1°
Temperatures
Average wind speed
18 km/h
Avg max wind
Average humidity
75 %
Avg humidity

Delaware Weather December

Move between months or click on a day
November
January
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Mist
5°
2
Fog
6°
3
Light rain shower
9°
4
Overcast
7°
5
Mist
3°
6
Patchy rain possible
4°
7
Overcast
4°
8
Overcast
8°
9
Fog
7°
10
Light rain shower
10°
11
Moderate snow
7°
12
Partly cloudy
4°
13
Overcast
3°
14
Cloudy
2°
15
Overcast
4°
16
Overcast
7°
17
Sunny
10°
18
Patchy rain possible
6°
19
Heavy rain
14°
20
Sunny
5°
21
Sunny
9°
22
Sunny
1°
23
Overcast
4°
24
Cloudy
12°
25
Patchy rain possible
14°
26
Sunny
6°
27
Moderate or heavy snow showers
3°
28
Sunny
1°
29
Moderate or heavy snow showers
-2°
30
Mist
2°
31
Partly cloudy
9°

Temperatures trend during December in Delaware

See the weather trend as well as the moving average line

December weather in Delaware day by day

Click on a date for more information
November January
Date Weather Temperatures Rain Snow More
Dec. 1 Mist
Mist
 5° /-2° 0.9 mm 0 cm
Dec. 2 Fog
Fog
 6° /0° 32.9 mm 0.6 cm
Dec. 3 Light rain shower
Light rain shower
 9° /0° 8.2 mm 0 cm
Dec. 4 Overcast
Overcast
 7° /-1° 0 mm 0 cm
Dec. 5 Mist
Mist
 3° /-3° 1.1 mm 0.3 cm
Dec. 6 Patchy rain possible
Patchy rain possible
 4° /-2° 0 mm 0 cm
Dec. 7 Overcast
Overcast
 4° /-3° 0 mm 0 cm
Dec. 8 Overcast
Overcast
 8° /-1° 0 mm 0 cm
Dec. 9 Fog
Fog
 7° /-2° 7.2 mm 0 cm
Dec. 10 Light rain shower
Light rain shower
 10° /2° 10 mm 0 cm
Dec. 11 Moderate snow
Moderate snow
 7° /1° 37.9 mm 0 cm
Dec. 12 Partly cloudy
Partly cloudy
 4° /-2° 0 mm 0 cm
Dec. 13 Overcast
Overcast
 3° /-2° 0 mm 0 cm
Dec. 14 Cloudy
Cloudy
 2° /-4° 7.1 mm 5.1 cm
Dec. 15 Overcast
Overcast
 4° /-4° 0 mm 0 cm
Dec. 16 Overcast
Overcast
 7° /-1° 2.4 mm 0 cm
Dec. 17 Sunny
Sunny
 10° /-6° 0 mm 0 cm
Dec. 18 Patchy rain possible
Patchy rain possible
 6° /-6° 1.3 mm 0 cm
Dec. 19 Heavy rain
Heavy rain
 14° /0° 47.3 mm 0 cm
Dec. 20 Sunny
Sunny
 5° /-1° 0 mm 0 cm
Dec. 21 Sunny
Sunny
 9° /-1° 0 mm 0 cm
Dec. 22 Sunny
Sunny
 1° /-2° 0 mm 0 cm
Dec. 23 Overcast
Overcast
 4° /-2° 0 mm 0 cm
Dec. 24 Cloudy
Cloudy
 12° /5° 0 mm 0 cm
Dec. 25 Patchy rain possible
Patchy rain possible
 14° /6° 2.2 mm 0 cm
Dec. 26 Sunny
Sunny
 6° /2° 0 mm 0 cm
Dec. 27 Moderate or heavy snow showers
Moderate or heavy snow showers
 3° /-1° 1.7 mm 1.3 cm
Dec. 28 Sunny
Sunny
 1° /-5° 0 mm 0 cm
Dec. 29 Moderate or heavy snow showers
Moderate or heavy snow showers
 -2° /-6° 1.7 mm 1.2 cm
Dec. 30 Mist
Mist
 2° /-2° 2.1 mm 0 cm
Dec. 31 Partly cloudy
Partly cloudy
 9° /0° 0 mm 0 cm
Next
Important Notice
Our weather forecast for Delaware 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 Delaware forecast closer to your planned date for the most up-to-date weather information.
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Delaware in December - FAQ

What are the expected maximum and minimum temperatures in Delaware during December?
Prepare for cooler days with highs just around 7° and colder nights, dipping below 1°.
How much rainfall should be expected in Delaware during December?
Significant rainfall exceeding 215.9 mm is expected in Delaware during December, occurring over more than 12 days. Preparing for wet conditions is recommended in your planning.
Will it snow in Delaware in December 2025?
Delaware experiences an average snowfall of 1.99 cm during December, occurring over 2 days.
What are the typical wind conditions in Delaware during December?
The average wind speed in Delaware during December is 18 km/h, suggesting breezy to windy conditions, depending on your activities.

Delaware snow forecast December 2025

Track daily snowfall levels and discover Delaware’s snowy potential this December ❄️
On average, Delaware sees 2 snowy days during December, with approximately 2 cm of total snowfall.

December rainfall patterns in Delaware

Explore the daily rainfall trends and prepare for Delawares December weather 💧
Typically, Delaware has 12 rainy days in December with a total of 215.9 mm of rainfall.
Counties in Delaware
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New Castle County
Top locations in Delaware
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Newark
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Quick links

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Location coordinates Where is Delaware?

Get accurate weather forecasts for Delaware, located at latitude 39.684 and longitude -75.75. Stay updated with localized weather information tailored for Delaware.

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